2010-05-11 19:42:16 +00:00
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// -*- C++ -*-
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//===--------------------------- istream ----------------------------------===//
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//
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2019-01-19 10:56:40 +00:00
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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2010-05-11 19:42:16 +00:00
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_ISTREAM
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#define _LIBCPP_ISTREAM
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/*
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istream synopsis
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template <class charT, class traits = char_traits<charT> >
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class basic_istream
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: virtual public basic_ios<charT,traits>
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{
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public:
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// types (inherited from basic_ios (27.5.4)):
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typedef charT char_type;
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typedef traits traits_type;
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typedef typename traits_type::int_type int_type;
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typedef typename traits_type::pos_type pos_type;
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typedef typename traits_type::off_type off_type;
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// 27.7.1.1.1 Constructor/destructor:
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explicit basic_istream(basic_streambuf<char_type, traits_type>* sb);
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basic_istream(basic_istream&& rhs);
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virtual ~basic_istream();
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// 27.7.1.1.2 Assign/swap:
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basic_istream& operator=(basic_istream&& rhs);
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void swap(basic_istream& rhs);
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// 27.7.1.1.3 Prefix/suffix:
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class sentry;
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// 27.7.1.2 Formatted input:
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basic_istream& operator>>(basic_istream& (*pf)(basic_istream&));
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basic_istream& operator>>(basic_ios<char_type, traits_type>&
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(*pf)(basic_ios<char_type, traits_type>&));
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basic_istream& operator>>(ios_base& (*pf)(ios_base&));
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basic_istream& operator>>(basic_streambuf<char_type, traits_type>* sb);
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basic_istream& operator>>(bool& n);
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basic_istream& operator>>(short& n);
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basic_istream& operator>>(unsigned short& n);
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basic_istream& operator>>(int& n);
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basic_istream& operator>>(unsigned int& n);
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basic_istream& operator>>(long& n);
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basic_istream& operator>>(unsigned long& n);
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basic_istream& operator>>(long long& n);
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basic_istream& operator>>(unsigned long long& n);
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basic_istream& operator>>(float& f);
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basic_istream& operator>>(double& f);
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basic_istream& operator>>(long double& f);
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basic_istream& operator>>(void*& p);
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// 27.7.1.3 Unformatted input:
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streamsize gcount() const;
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int_type get();
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basic_istream& get(char_type& c);
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basic_istream& get(char_type* s, streamsize n);
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basic_istream& get(char_type* s, streamsize n, char_type delim);
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basic_istream& get(basic_streambuf<char_type,traits_type>& sb);
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basic_istream& get(basic_streambuf<char_type,traits_type>& sb, char_type delim);
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basic_istream& getline(char_type* s, streamsize n);
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basic_istream& getline(char_type* s, streamsize n, char_type delim);
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basic_istream& ignore(streamsize n = 1, int_type delim = traits_type::eof());
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int_type peek();
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basic_istream& read (char_type* s, streamsize n);
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streamsize readsome(char_type* s, streamsize n);
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basic_istream& putback(char_type c);
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basic_istream& unget();
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int sync();
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pos_type tellg();
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basic_istream& seekg(pos_type);
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basic_istream& seekg(off_type, ios_base::seekdir);
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2014-09-16 15:27:01 +00:00
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protected:
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basic_istream(const basic_istream& rhs) = delete;
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basic_istream(basic_istream&& rhs);
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// 27.7.2.1.2 Assign/swap:
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basic_istream& operator=(const basic_istream& rhs) = delete;
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basic_istream& operator=(basic_istream&& rhs);
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void swap(basic_istream& rhs);
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2010-05-11 19:42:16 +00:00
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};
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// 27.7.1.2.3 character extraction templates:
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template<class charT, class traits>
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basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT&);
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template<class traits>
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basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char&);
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template<class traits>
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basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char&);
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template<class charT, class traits>
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basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT*);
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template<class traits>
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basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char*);
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template<class traits>
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basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char*);
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template <class charT, class traits>
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void
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swap(basic_istream<charT, traits>& x, basic_istream<charT, traits>& y);
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typedef basic_istream<char> istream;
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typedef basic_istream<wchar_t> wistream;
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template <class charT, class traits = char_traits<charT> >
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class basic_iostream :
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public basic_istream<charT,traits>,
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public basic_ostream<charT,traits>
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{
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public:
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// types:
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typedef charT char_type;
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typedef traits traits_type;
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typedef typename traits_type::int_type int_type;
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typedef typename traits_type::pos_type pos_type;
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typedef typename traits_type::off_type off_type;
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// constructor/destructor
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explicit basic_iostream(basic_streambuf<char_type, traits_type>* sb);
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basic_iostream(basic_iostream&& rhs);
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virtual ~basic_iostream();
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// assign/swap
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basic_iostream& operator=(basic_iostream&& rhs);
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void swap(basic_iostream& rhs);
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};
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template <class charT, class traits>
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void
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swap(basic_iostream<charT, traits>& x, basic_iostream<charT, traits>& y);
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typedef basic_iostream<char> iostream;
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typedef basic_iostream<wchar_t> wiostream;
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template <class charT, class traits>
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basic_istream<charT,traits>&
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ws(basic_istream<charT,traits>& is);
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template <class charT, class traits, class T>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>&& is, T& x);
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} // std
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*/
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#include <__config>
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2018-12-11 04:35:44 +00:00
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#include <version>
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2010-05-11 19:42:16 +00:00
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#include <ostream>
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2011-11-29 16:45:27 +00:00
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2011-10-17 20:05:10 +00:00
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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2010-05-11 19:42:16 +00:00
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#pragma GCC system_header
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2011-10-17 20:05:10 +00:00
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#endif
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2010-05-11 19:42:16 +00:00
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2017-05-31 22:07:49 +00:00
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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2010-05-11 19:42:16 +00:00
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _CharT, class _Traits>
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2017-01-04 23:56:00 +00:00
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class _LIBCPP_TEMPLATE_VIS basic_istream
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2010-05-11 19:42:16 +00:00
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: virtual public basic_ios<_CharT, _Traits>
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{
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streamsize __gc_;
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public:
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// types (inherited from basic_ios (27.5.4)):
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typedef _CharT char_type;
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typedef _Traits traits_type;
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typedef typename traits_type::int_type int_type;
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typedef typename traits_type::pos_type pos_type;
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typedef typename traits_type::off_type off_type;
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// 27.7.1.1.1 Constructor/destructor:
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2018-10-16 19:26:23 +00:00
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inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
explicit basic_istream(basic_streambuf<char_type, traits_type>* __sb) : __gc_(0)
|
|
|
|
{ this->init(__sb); }
|
2010-05-11 19:42:16 +00:00
|
|
|
virtual ~basic_istream();
|
|
|
|
protected:
|
2017-04-18 23:38:41 +00:00
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream(basic_istream&& __rhs);
|
2017-04-18 23:38:41 +00:00
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
// 27.7.1.1.2 Assign/swap:
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream& operator=(basic_istream&& __rhs);
|
|
|
|
#endif
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
void swap(basic_istream& __rhs) {
|
|
|
|
_VSTD::swap(__gc_, __rhs.__gc_);
|
|
|
|
basic_ios<char_type, traits_type>::swap(__rhs);
|
|
|
|
}
|
2014-09-16 15:27:01 +00:00
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2017-01-06 20:58:25 +00:00
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#ifndef _LIBCPP_CXX03_LANG
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2014-09-16 15:33:53 +00:00
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basic_istream (const basic_istream& __rhs) = delete;
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basic_istream& operator=(const basic_istream& __rhs) = delete;
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2014-09-16 15:27:01 +00:00
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#endif
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2010-05-11 19:42:16 +00:00
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public:
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// 27.7.1.1.3 Prefix/suffix:
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2017-01-04 23:56:00 +00:00
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class _LIBCPP_TEMPLATE_VIS sentry;
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2010-05-11 19:42:16 +00:00
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// 27.7.1.2 Formatted input:
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2018-10-16 19:26:23 +00:00
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inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
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basic_istream& operator>>(basic_istream& (*__pf)(basic_istream&))
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{ return __pf(*this); }
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2018-10-16 19:26:23 +00:00
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inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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2010-05-11 19:42:16 +00:00
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basic_istream& operator>>(basic_ios<char_type, traits_type>&
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[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
(*__pf)(basic_ios<char_type, traits_type>&))
|
|
|
|
{ __pf(*this); return *this; }
|
|
|
|
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
basic_istream& operator>>(ios_base& (*__pf)(ios_base&))
|
|
|
|
{ __pf(*this); return *this; }
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream& operator>>(basic_streambuf<char_type, traits_type>* __sb);
|
|
|
|
basic_istream& operator>>(bool& __n);
|
|
|
|
basic_istream& operator>>(short& __n);
|
|
|
|
basic_istream& operator>>(unsigned short& __n);
|
|
|
|
basic_istream& operator>>(int& __n);
|
|
|
|
basic_istream& operator>>(unsigned int& __n);
|
|
|
|
basic_istream& operator>>(long& __n);
|
|
|
|
basic_istream& operator>>(unsigned long& __n);
|
|
|
|
basic_istream& operator>>(long long& __n);
|
|
|
|
basic_istream& operator>>(unsigned long long& __n);
|
|
|
|
basic_istream& operator>>(float& __f);
|
|
|
|
basic_istream& operator>>(double& __f);
|
|
|
|
basic_istream& operator>>(long double& __f);
|
|
|
|
basic_istream& operator>>(void*& __p);
|
|
|
|
|
|
|
|
// 27.7.1.3 Unformatted input:
|
2010-09-22 15:29:08 +00:00
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
streamsize gcount() const {return __gc_;}
|
|
|
|
int_type get();
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
basic_istream& get(char_type& __c) {
|
|
|
|
int_type __ch = get();
|
|
|
|
if (__ch != traits_type::eof())
|
|
|
|
__c = traits_type::to_char_type(__ch);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
basic_istream& get(char_type* __s, streamsize __n)
|
|
|
|
{ return get(__s, __n, this->widen('\n')); }
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream& get(char_type* __s, streamsize __n, char_type __dlm);
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
basic_istream& get(basic_streambuf<char_type, traits_type>& __sb)
|
|
|
|
{ return get(__sb, this->widen('\n')); }
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream& get(basic_streambuf<char_type, traits_type>& __sb, char_type __dlm);
|
|
|
|
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
basic_istream& getline(char_type* __s, streamsize __n)
|
|
|
|
{ return getline(__s, __n, this->widen('\n')); }
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream& getline(char_type* __s, streamsize __n, char_type __dlm);
|
|
|
|
|
|
|
|
basic_istream& ignore(streamsize __n = 1, int_type __dlm = traits_type::eof());
|
|
|
|
int_type peek();
|
|
|
|
basic_istream& read (char_type* __s, streamsize __n);
|
|
|
|
streamsize readsome(char_type* __s, streamsize __n);
|
|
|
|
|
|
|
|
basic_istream& putback(char_type __c);
|
|
|
|
basic_istream& unget();
|
|
|
|
int sync();
|
|
|
|
|
|
|
|
pos_type tellg();
|
|
|
|
basic_istream& seekg(pos_type __pos);
|
|
|
|
basic_istream& seekg(off_type __off, ios_base::seekdir __dir);
|
|
|
|
};
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
2017-01-04 23:56:00 +00:00
|
|
|
class _LIBCPP_TEMPLATE_VIS basic_istream<_CharT, _Traits>::sentry
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
|
|
|
bool __ok_;
|
|
|
|
|
|
|
|
sentry(const sentry&); // = delete;
|
|
|
|
sentry& operator=(const sentry&); // = delete;
|
|
|
|
|
|
|
|
public:
|
|
|
|
explicit sentry(basic_istream<_CharT, _Traits>& __is, bool __noskipws = false);
|
|
|
|
// ~sentry() = default;
|
|
|
|
|
2010-09-22 15:29:08 +00:00
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
2012-02-21 21:46:43 +00:00
|
|
|
_LIBCPP_EXPLICIT
|
2010-05-11 19:42:16 +00:00
|
|
|
operator bool() const {return __ok_;}
|
|
|
|
};
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>::sentry::sentry(basic_istream<_CharT, _Traits>& __is,
|
|
|
|
bool __noskipws)
|
|
|
|
: __ok_(false)
|
|
|
|
{
|
|
|
|
if (__is.good())
|
|
|
|
{
|
|
|
|
if (__is.tie())
|
|
|
|
__is.tie()->flush();
|
|
|
|
if (!__noskipws && (__is.flags() & ios_base::skipws))
|
|
|
|
{
|
2011-11-29 18:15:50 +00:00
|
|
|
typedef istreambuf_iterator<_CharT, _Traits> _Ip;
|
2010-05-11 19:42:16 +00:00
|
|
|
const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
2011-11-29 18:15:50 +00:00
|
|
|
_Ip __i(__is);
|
|
|
|
_Ip __eof;
|
2010-05-11 19:42:16 +00:00
|
|
|
for (; __i != __eof; ++__i)
|
|
|
|
if (!__ct.is(__ct.space, *__i))
|
|
|
|
break;
|
|
|
|
if (__i == __eof)
|
|
|
|
__is.setstate(ios_base::failbit | ios_base::eofbit);
|
|
|
|
}
|
|
|
|
__ok_ = __is.good();
|
|
|
|
}
|
|
|
|
else
|
|
|
|
__is.setstate(ios_base::failbit);
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>::basic_istream(basic_istream&& __rhs)
|
|
|
|
: __gc_(__rhs.__gc_)
|
|
|
|
{
|
|
|
|
__rhs.__gc_ = 0;
|
|
|
|
this->move(__rhs);
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator=(basic_istream&& __rhs)
|
|
|
|
{
|
|
|
|
swap(__rhs);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>::~basic_istream()
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2018-07-25 19:40:01 +00:00
|
|
|
template <class _Tp, class _CharT, class _Traits>
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2018-07-25 19:40:01 +00:00
|
|
|
__input_arithmetic(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __s(__is);
|
|
|
|
if (__s)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2018-07-25 19:40:01 +00:00
|
|
|
typedef istreambuf_iterator<_CharT, _Traits> _Ip;
|
|
|
|
typedef num_get<_CharT, _Ip> _Fp;
|
2019-04-02 21:43:07 +00:00
|
|
|
use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __state, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__is.setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2018-07-25 19:40:01 +00:00
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(unsigned short& __n)
|
|
|
|
{
|
|
|
|
return _VSTD::__input_arithmetic<unsigned short>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(unsigned int& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<unsigned int>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(long& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<long>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(unsigned long& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<unsigned long>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(long long& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<long long>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(unsigned long long& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<unsigned long long>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(float& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<float>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(double& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<double>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(long double& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<long double>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(bool& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<bool>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(void*& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic<void*>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
2018-07-25 19:40:01 +00:00
|
|
|
template <class _Tp, class _CharT, class _Traits>
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2018-07-25 19:40:01 +00:00
|
|
|
__input_arithmetic_with_numeric_limits(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __s(__is);
|
|
|
|
if (__s)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2018-07-25 19:40:01 +00:00
|
|
|
typedef istreambuf_iterator<_CharT, _Traits> _Ip;
|
|
|
|
typedef num_get<_CharT, _Ip> _Fp;
|
2010-05-11 19:42:16 +00:00
|
|
|
long __temp;
|
2019-04-02 21:43:07 +00:00
|
|
|
use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __state, __temp);
|
2018-07-25 19:40:01 +00:00
|
|
|
if (__temp < numeric_limits<_Tp>::min())
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2018-07-25 19:40:01 +00:00
|
|
|
__n = numeric_limits<_Tp>::min();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2018-07-25 19:40:01 +00:00
|
|
|
else if (__temp > numeric_limits<_Tp>::max())
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2018-07-25 19:40:01 +00:00
|
|
|
__n = numeric_limits<_Tp>::max();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
else
|
2019-04-02 21:43:07 +00:00
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
__n = static_cast<_Tp>(__temp);
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
__is.setstate(__state);
|
|
|
|
}
|
2018-07-25 19:40:01 +00:00
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(short& __n)
|
|
|
|
{
|
|
|
|
return _VSTD::__input_arithmetic_with_numeric_limits<short>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(int& __n)
|
|
|
|
{
|
2018-07-25 19:40:01 +00:00
|
|
|
return _VSTD::__input_arithmetic_with_numeric_limits<int>(*this, __n);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
2018-11-21 03:30:10 +00:00
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2018-11-21 03:30:10 +00:00
|
|
|
__input_c_string(basic_istream<_CharT, _Traits>& __is, _CharT* __p, size_t __n)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 22:02:17 +00:00
|
|
|
#endif
|
2019-04-02 19:20:47 +00:00
|
|
|
_CharT* __s = __p;
|
2010-05-11 19:42:16 +00:00
|
|
|
const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
2018-11-21 03:30:10 +00:00
|
|
|
while (__s != __p + (__n-1))
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
|
if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
_CharT __ch = _Traits::to_char_type(__i);
|
2010-05-11 19:42:16 +00:00
|
|
|
if (__ct.is(__ct.space, __ch))
|
|
|
|
break;
|
2011-09-01 21:02:45 +00:00
|
|
|
*__s++ = __ch;
|
|
|
|
__is.rdbuf()->sbumpc();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
*__s = _CharT();
|
|
|
|
__is.width(0);
|
2018-11-21 03:30:10 +00:00
|
|
|
if (__s == __p)
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__is.setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
2018-11-21 03:30:10 +00:00
|
|
|
#if _LIBCPP_STD_VER > 17
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits, size_t _Np>
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _CharT (&__buf)[_Np])
|
|
|
|
{
|
2019-04-02 19:20:47 +00:00
|
|
|
size_t __n = _Np;
|
2018-11-21 03:30:10 +00:00
|
|
|
if (__is.width() > 0)
|
|
|
|
__n = _VSTD::min(size_t(__is.width()), _Np);
|
|
|
|
return _VSTD::__input_c_string(__is, __buf, __n);
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _Traits, size_t _Np>
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
|
|
basic_istream<char, _Traits>&
|
|
|
|
operator>>(basic_istream<char, _Traits>& __is, unsigned char (&__buf)[_Np])
|
|
|
|
{
|
|
|
|
return __is >> (char(&)[_Np])__buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _Traits, size_t _Np>
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
|
|
basic_istream<char, _Traits>&
|
|
|
|
operator>>(basic_istream<char, _Traits>& __is, signed char (&__buf)[_Np])
|
|
|
|
{
|
|
|
|
return __is >> (char(&)[_Np])__buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _CharT* __s)
|
|
|
|
{
|
|
|
|
streamsize __n = __is.width();
|
|
|
|
if (__n <= 0)
|
|
|
|
__n = numeric_limits<streamsize>::max() / sizeof(_CharT) - 1;
|
|
|
|
return _VSTD::__input_c_string(__is, __s, size_t(__n));
|
|
|
|
}
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
template<class _Traits>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<char, _Traits>&
|
|
|
|
operator>>(basic_istream<char, _Traits>& __is, unsigned char* __s)
|
|
|
|
{
|
|
|
|
return __is >> (char*)__s;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _Traits>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<char, _Traits>&
|
|
|
|
operator>>(basic_istream<char, _Traits>& __is, signed char* __s)
|
|
|
|
{
|
|
|
|
return __is >> (char*)__s;
|
|
|
|
}
|
|
|
|
|
2018-11-21 03:30:10 +00:00
|
|
|
#endif // _LIBCPP_STD_VER > 17
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _CharT& __c)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif
|
2011-02-27 18:02:02 +00:00
|
|
|
typename _Traits::int_type __i = __is.rdbuf()->sbumpc();
|
|
|
|
if (_Traits::eq_int_type(__i, _Traits::eof()))
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit | ios_base::failbit;
|
2011-02-27 18:02:02 +00:00
|
|
|
else
|
|
|
|
__c = _Traits::to_char_type(__i);
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__is.setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _Traits>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<char, _Traits>&
|
|
|
|
operator>>(basic_istream<char, _Traits>& __is, unsigned char& __c)
|
|
|
|
{
|
|
|
|
return __is >> (char&)__c;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _Traits>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<char, _Traits>&
|
|
|
|
operator>>(basic_istream<char, _Traits>& __is, signed char& __c)
|
|
|
|
{
|
|
|
|
return __is >> (char&)__c;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::operator>>(basic_streambuf<char_type, traits_type>* __sb)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __s(*this, true);
|
|
|
|
if (__s)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
if (__sb)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
try
|
|
|
|
{
|
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
|
|
while (true)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
typename traits_type::int_type __i = this->rdbuf()->sgetc();
|
|
|
|
if (traits_type::eq_int_type(__i, _Traits::eof()))
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
|
|
|
break;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
if (traits_type::eq_int_type(
|
|
|
|
__sb->sputc(traits_type::to_char_type(__i)),
|
|
|
|
traits_type::eof()))
|
|
|
|
break;
|
|
|
|
++__gc_;
|
|
|
|
this->rdbuf()->sbumpc();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
if (__gc_ == 0)
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
if (__gc_ == 0)
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::failbit || this->exceptions() & ios_base::badbit)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
throw;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
else
|
|
|
|
{
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
}
|
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
typename basic_istream<_CharT, _Traits>::int_type
|
|
|
|
basic_istream<_CharT, _Traits>::get()
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
|
|
|
int_type __r = traits_type::eof();
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __s(*this, true);
|
|
|
|
if (__s)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif
|
2011-09-01 21:02:45 +00:00
|
|
|
__r = this->rdbuf()->sbumpc();
|
|
|
|
if (traits_type::eq_int_type(__r, traits_type::eof()))
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit | ios_base::eofbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
else
|
2011-09-01 21:02:45 +00:00
|
|
|
__gc_ = 1;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
this->__setstate_nothrow(this->rdstate() | ios_base::badbit);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return __r;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n, char_type __dlm)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
if (__n > 0)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif
|
2011-09-01 21:02:45 +00:00
|
|
|
while (__gc_ < __n-1)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
int_type __i = this->rdbuf()->sgetc();
|
|
|
|
if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
char_type __ch = traits_type::to_char_type(__i);
|
2010-05-11 19:42:16 +00:00
|
|
|
if (traits_type::eq(__ch, __dlm))
|
|
|
|
break;
|
2011-09-01 21:02:45 +00:00
|
|
|
*__s++ = __ch;
|
|
|
|
++__gc_;
|
|
|
|
this->rdbuf()->sbumpc();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2011-09-01 21:02:45 +00:00
|
|
|
if (__gc_ == 0)
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
if (__n > 0)
|
|
|
|
*__s = char_type();
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
else
|
|
|
|
{
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
}
|
|
|
|
|
2018-01-11 23:23:49 +00:00
|
|
|
if (__n > 0)
|
|
|
|
*__s = char_type();
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
if (__n > 0)
|
|
|
|
*__s = char_type();
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::get(basic_streambuf<char_type, traits_type>& __sb,
|
|
|
|
char_type __dlm)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
try
|
|
|
|
{
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
while (true)
|
|
|
|
{
|
|
|
|
typename traits_type::int_type __i = this->rdbuf()->sgetc();
|
|
|
|
if (traits_type::eq_int_type(__i, traits_type::eof()))
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
|
|
|
break;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
char_type __ch = traits_type::to_char_type(__i);
|
|
|
|
if (traits_type::eq(__ch, __dlm))
|
|
|
|
break;
|
|
|
|
if (traits_type::eq_int_type(__sb.sputc(__ch), traits_type::eof()))
|
|
|
|
break;
|
|
|
|
++__gc_;
|
|
|
|
this->rdbuf()->sbumpc();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
// according to the spec, exceptions here are caught but not rethrown
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
if (__gc_ == 0)
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n, char_type __dlm)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2011-09-01 21:02:45 +00:00
|
|
|
while (true)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename traits_type::int_type __i = this->rdbuf()->sgetc();
|
|
|
|
if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
char_type __ch = traits_type::to_char_type(__i);
|
2010-05-11 19:42:16 +00:00
|
|
|
if (traits_type::eq(__ch, __dlm))
|
2011-09-01 21:02:45 +00:00
|
|
|
{
|
|
|
|
this->rdbuf()->sbumpc();
|
|
|
|
++__gc_;
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
2011-09-01 21:02:45 +00:00
|
|
|
}
|
|
|
|
if (__gc_ >= __n-1)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
|
|
|
}
|
2011-09-01 21:02:45 +00:00
|
|
|
*__s++ = __ch;
|
|
|
|
this->rdbuf()->sbumpc();
|
|
|
|
++__gc_;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
if (__n > 0)
|
|
|
|
*__s = char_type();
|
|
|
|
if (__gc_ == 0)
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
if (__n > 0)
|
|
|
|
*__s = char_type();
|
|
|
|
if (__gc_ == 0)
|
|
|
|
__state |= ios_base::failbit;
|
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::ignore(streamsize __n, int_type __dlm)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2011-09-01 21:02:45 +00:00
|
|
|
if (__n == numeric_limits<streamsize>::max())
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
while (true)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename traits_type::int_type __i = this->rdbuf()->sbumpc();
|
|
|
|
if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
++__gc_;
|
2013-07-01 00:37:50 +00:00
|
|
|
if (traits_type::eq_int_type(__i, __dlm))
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
while (__gc_ < __n)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename traits_type::int_type __i = this->rdbuf()->sbumpc();
|
|
|
|
if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
++__gc_;
|
2013-07-01 00:37:50 +00:00
|
|
|
if (traits_type::eq_int_type(__i, __dlm))
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
typename basic_istream<_CharT, _Traits>::int_type
|
|
|
|
basic_istream<_CharT, _Traits>::peek()
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
|
|
|
int_type __r = traits_type::eof();
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2012-11-01 17:32:07 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
__r = this->rdbuf()->sgetc();
|
2012-11-01 17:32:07 +00:00
|
|
|
if (traits_type::eq_int_type(__r, traits_type::eof()))
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return __r;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::read(char_type* __s, streamsize __n)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2013-03-06 19:27:56 +00:00
|
|
|
__gc_ = this->rdbuf()->sgetn(__s, __n);
|
|
|
|
if (__gc_ != __n)
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit | ios_base::eofbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
else
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
streamsize
|
|
|
|
basic_istream<_CharT, _Traits>::readsome(char_type* __s, streamsize __n)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2012-12-20 15:40:28 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2016-07-13 16:58:48 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2016-07-13 16:58:48 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2016-07-13 16:58:48 +00:00
|
|
|
streamsize __c = this->rdbuf()->in_avail();
|
|
|
|
switch (__c)
|
|
|
|
{
|
|
|
|
case -1:
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2016-07-13 16:58:48 +00:00
|
|
|
break;
|
|
|
|
case 0:
|
|
|
|
break;
|
|
|
|
default:
|
2019-04-02 21:43:07 +00:00
|
|
|
__n = _VSTD::min(__c, __n);
|
|
|
|
__gc_ = this->rdbuf()->sgetn(__s, __n);
|
|
|
|
if (__gc_ != __n)
|
|
|
|
__state |= ios_base::failbit | ios_base::eofbit;
|
2016-07-13 16:58:48 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2016-07-13 16:58:48 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
else
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
2011-09-01 21:02:45 +00:00
|
|
|
return __gc_;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::putback(char_type __c)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
this->clear(__state);
|
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
if (this->rdbuf() == 0 || this->rdbuf()->sputbackc(__c) == traits_type::eof())
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::badbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
else
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::unget()
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
__gc_ = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
this->clear(__state);
|
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
if (this->rdbuf() == 0 || this->rdbuf()->sungetc() == traits_type::eof())
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::badbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
else
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
int
|
|
|
|
basic_istream<_CharT, _Traits>::sync()
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
int __r = 0;
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
if (this->rdbuf() == 0)
|
|
|
|
return -1;
|
|
|
|
if (this->rdbuf()->pubsync() == -1)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::badbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return __r;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
typename basic_istream<_CharT, _Traits>::pos_type
|
|
|
|
basic_istream<_CharT, _Traits>::tellg()
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
pos_type __r(-1);
|
2019-04-02 21:43:07 +00:00
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
|
|
|
{
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
__r = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::in);
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return __r;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::seekg(pos_type __pos)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
|
|
|
this->clear(__state);
|
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2013-10-31 22:20:45 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
if (this->rdbuf()->pubseekpos(__pos, ios_base::in) == pos_type(-1))
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
basic_istream<_CharT, _Traits>::seekg(off_type __off, ios_base::seekdir __dir)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
|
|
|
this->clear(__state);
|
|
|
|
sentry __sen(*this, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2013-10-31 22:20:45 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2013-10-31 22:20:45 +00:00
|
|
|
if (this->rdbuf()->pubseekoff(__off, __dir, ios_base::in) == pos_type(-1))
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
this->__setstate_nothrow(__state);
|
|
|
|
if (this->exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
this->setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
ws(basic_istream<_CharT, _Traits>& __is)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2010-05-11 19:42:16 +00:00
|
|
|
const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
2011-09-01 21:02:45 +00:00
|
|
|
while (true)
|
|
|
|
{
|
|
|
|
typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
|
if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!__ct.is(__ct.space, _Traits::to_char_type(__i)))
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
2011-09-01 21:02:45 +00:00
|
|
|
__is.rdbuf()->sbumpc();
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2010-08-22 00:02:43 +00:00
|
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
__is.setstate(__state);
|
|
|
|
}
|
2010-05-11 19:42:16 +00:00
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits, class _Tp>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2016-07-24 04:07:22 +00:00
|
|
|
operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp&& __x)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2016-07-24 04:07:22 +00:00
|
|
|
__is >> _VSTD::forward<_Tp>(__x);
|
2010-05-11 19:42:16 +00:00
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
2017-01-04 23:56:00 +00:00
|
|
|
class _LIBCPP_TEMPLATE_VIS basic_iostream
|
2010-05-11 19:42:16 +00:00
|
|
|
: public basic_istream<_CharT, _Traits>,
|
|
|
|
public basic_ostream<_CharT, _Traits>
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
// types:
|
|
|
|
typedef _CharT char_type;
|
|
|
|
typedef _Traits traits_type;
|
|
|
|
typedef typename traits_type::int_type int_type;
|
|
|
|
typedef typename traits_type::pos_type pos_type;
|
|
|
|
typedef typename traits_type::off_type off_type;
|
|
|
|
|
|
|
|
// constructor/destructor
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
explicit basic_iostream(basic_streambuf<char_type, traits_type>* __sb)
|
|
|
|
: basic_istream<_CharT, _Traits>(__sb)
|
|
|
|
{}
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
virtual ~basic_iostream();
|
|
|
|
protected:
|
2017-04-18 23:38:41 +00:00
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_iostream(basic_iostream&& __rhs);
|
|
|
|
|
|
|
|
// assign/swap
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_iostream& operator=(basic_iostream&& __rhs);
|
|
|
|
#endif
|
2018-10-16 19:26:23 +00:00
|
|
|
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
Summary:
GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'.
```
// RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
// RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out
#define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline))
template <class T>
struct Foo {
void foo();
void bar();
};
template <class T>
void Foo<T>::foo() {}
template <class T>
inline INLINE_VISIBILITY
void Foo<T>::bar() {}
template struct Foo<int>;
```
This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated).
Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors).
This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`.
After applying this patch GCC dylibs now contain:
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl`
* `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_`
* `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl`
* `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE`
* `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw`
* `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl`
* `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E`
* `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl`
* `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw`
This patch has no effect on Clang based builds.
Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF
Subscribers: beanz, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D24600
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16 00:00:48 +00:00
|
|
|
void swap(basic_iostream& __rhs)
|
|
|
|
{ basic_istream<char_type, traits_type>::swap(__rhs); }
|
2010-05-11 19:42:16 +00:00
|
|
|
};
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_iostream<_CharT, _Traits>::basic_iostream(basic_iostream&& __rhs)
|
2011-06-30 21:18:19 +00:00
|
|
|
: basic_istream<_CharT, _Traits>(_VSTD::move(__rhs))
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_iostream<_CharT, _Traits>&
|
|
|
|
basic_iostream<_CharT, _Traits>::operator=(basic_iostream&& __rhs)
|
|
|
|
{
|
|
|
|
swap(__rhs);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits>
|
|
|
|
basic_iostream<_CharT, _Traits>::~basic_iostream()
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits, class _Allocator>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
|
|
basic_string<_CharT, _Traits, _Allocator>& __str)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif
|
2010-05-11 19:42:16 +00:00
|
|
|
__str.clear();
|
|
|
|
streamsize __n = __is.width();
|
2011-09-01 21:02:45 +00:00
|
|
|
if (__n <= 0)
|
2010-05-11 19:42:16 +00:00
|
|
|
__n = __str.max_size();
|
2011-09-01 21:02:45 +00:00
|
|
|
if (__n <= 0)
|
2010-05-11 19:42:16 +00:00
|
|
|
__n = numeric_limits<streamsize>::max();
|
|
|
|
streamsize __c = 0;
|
|
|
|
const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
2011-09-01 21:02:45 +00:00
|
|
|
while (__c < __n)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
|
if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
_CharT __ch = _Traits::to_char_type(__i);
|
2010-05-11 19:42:16 +00:00
|
|
|
if (__ct.is(__ct.space, __ch))
|
|
|
|
break;
|
|
|
|
__str.push_back(__ch);
|
2011-09-01 21:02:45 +00:00
|
|
|
++__c;
|
|
|
|
__is.rdbuf()->sbumpc();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
__is.width(0);
|
|
|
|
if (__c == 0)
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__is.setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits, class _Allocator>
|
2010-08-22 00:02:43 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2010-05-11 19:42:16 +00:00
|
|
|
getline(basic_istream<_CharT, _Traits>& __is,
|
|
|
|
basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif
|
2010-05-11 19:42:16 +00:00
|
|
|
__str.clear();
|
2011-10-09 15:20:46 +00:00
|
|
|
streamsize __extr = 0;
|
2011-09-01 21:02:45 +00:00
|
|
|
while (true)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename _Traits::int_type __i = __is.rdbuf()->sbumpc();
|
|
|
|
if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
2011-10-09 15:20:46 +00:00
|
|
|
++__extr;
|
2011-09-01 21:02:45 +00:00
|
|
|
_CharT __ch = _Traits::to_char_type(__i);
|
2010-05-11 19:42:16 +00:00
|
|
|
if (_Traits::eq(__ch, __dlm))
|
|
|
|
break;
|
2011-09-01 21:02:45 +00:00
|
|
|
__str.push_back(__ch);
|
|
|
|
if (__str.size() == __str.max_size())
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2011-10-09 15:20:46 +00:00
|
|
|
if (__extr == 0)
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__is.setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits, class _Allocator>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-08-22 00:02:43 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2010-05-11 19:42:16 +00:00
|
|
|
getline(basic_istream<_CharT, _Traits>& __is,
|
|
|
|
basic_string<_CharT, _Traits, _Allocator>& __str)
|
|
|
|
{
|
|
|
|
return getline(__is, __str, __is.widen('\n'));
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template<class _CharT, class _Traits, class _Allocator>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-08-22 00:02:43 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2010-05-11 19:42:16 +00:00
|
|
|
getline(basic_istream<_CharT, _Traits>&& __is,
|
|
|
|
basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
|
|
|
|
{
|
|
|
|
return getline(__is, __str, __dlm);
|
|
|
|
}
|
|
|
|
|
|
|
|
template<class _CharT, class _Traits, class _Allocator>
|
2016-01-08 19:21:02 +00:00
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
2010-08-22 00:02:43 +00:00
|
|
|
basic_istream<_CharT, _Traits>&
|
2010-05-11 19:42:16 +00:00
|
|
|
getline(basic_istream<_CharT, _Traits>&& __is,
|
|
|
|
basic_string<_CharT, _Traits, _Allocator>& __str)
|
|
|
|
{
|
|
|
|
return getline(__is, __str, __is.widen('\n'));
|
|
|
|
}
|
|
|
|
|
2017-04-18 23:38:41 +00:00
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
template <class _CharT, class _Traits, size_t _Size>
|
|
|
|
basic_istream<_CharT, _Traits>&
|
|
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x)
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
ios_base::iostate __state = ios_base::goodbit;
|
|
|
|
typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
|
if (__sen)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
|
try
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
#endif
|
2010-05-11 19:42:16 +00:00
|
|
|
basic_string<_CharT, _Traits> __str;
|
|
|
|
const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
2016-12-24 00:24:44 +00:00
|
|
|
size_t __c = 0;
|
2010-05-11 19:42:16 +00:00
|
|
|
_CharT __zero = __ct.widen('0');
|
|
|
|
_CharT __one = __ct.widen('1');
|
2011-09-01 21:02:45 +00:00
|
|
|
while (__c < _Size)
|
2010-05-11 19:42:16 +00:00
|
|
|
{
|
2011-09-01 21:02:45 +00:00
|
|
|
typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
|
if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
|
{
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::eofbit;
|
2011-09-01 21:02:45 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
_CharT __ch = _Traits::to_char_type(__i);
|
|
|
|
if (!_Traits::eq(__ch, __zero) && !_Traits::eq(__ch, __one))
|
2010-05-11 19:42:16 +00:00
|
|
|
break;
|
|
|
|
__str.push_back(__ch);
|
2011-09-01 21:02:45 +00:00
|
|
|
++__c;
|
|
|
|
__is.rdbuf()->sbumpc();
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
__x = bitset<_Size>(__str);
|
|
|
|
if (__c == 0)
|
2019-04-02 21:43:07 +00:00
|
|
|
__state |= ios_base::failbit;
|
2010-05-11 19:42:16 +00:00
|
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
2019-04-02 21:43:07 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
__state |= ios_base::badbit;
|
|
|
|
__is.__setstate_nothrow(__state);
|
|
|
|
if (__is.exceptions() & ios_base::badbit)
|
|
|
|
{
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__is.setstate(__state);
|
2010-05-11 19:42:16 +00:00
|
|
|
}
|
|
|
|
return __is;
|
|
|
|
}
|
|
|
|
|
2018-12-06 00:24:58 +00:00
|
|
|
#ifndef _LIBCPP_DO_NOT_ASSUME_STREAMS_EXPLICIT_INSTANTIATION_IN_DYLIB
|
2016-09-15 22:27:07 +00:00
|
|
|
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istream<char>)
|
|
|
|
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istream<wchar_t>)
|
|
|
|
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_iostream<char>)
|
2017-05-04 17:08:54 +00:00
|
|
|
#endif
|
2010-05-11 19:42:16 +00:00
|
|
|
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
|
2017-05-31 22:07:49 +00:00
|
|
|
_LIBCPP_POP_MACROS
|
|
|
|
|
2010-05-11 19:42:16 +00:00
|
|
|
#endif // _LIBCPP_ISTREAM
|