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https://github.com/darlinghq/darling-libcxx.git
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417a7dee1c
Summary: Currently, libc++'s `<stdexcept>` doesn't play nice with `vcruntime`. Specifically: * `logic_error` and `runtime_error` have a different layout. * libc++'s `logic_error` and `runtime_error` override `what()` but `vcruntime` does not. * `vcruntime` uses weak vtables for `<stdexcept>` types. * libc++'s `<stdexcept>` constructors and assignment operators may have different manglings than `vcruntimes`. This patch makes libc++'s declarations in `<stdexcept>` match those provided by MSVC's STL as closely as possible. If MSVC doesn't declare a special member, then neither do we. This ensures that the implicit definitions have the same linkage, visibility, triviality, and noexcept-ness. Reviewers: thomasanderson, ldionne, smeenai Reviewed By: thomasanderson Subscribers: jdoerfert, libcxx-commits Differential Revision: https://reviews.llvm.org/D58945 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@355546 91177308-0d34-0410-b5e6-96231b3b80d8
305 lines
7.2 KiB
C++
305 lines
7.2 KiB
C++
// -*- C++ -*-
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//===--------------------------- stdexcept --------------------------------===//
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//
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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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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_STDEXCEPT
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#define _LIBCPP_STDEXCEPT
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/*
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stdexcept synopsis
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namespace std
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{
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class logic_error;
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class domain_error;
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class invalid_argument;
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class length_error;
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class out_of_range;
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class runtime_error;
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class range_error;
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class overflow_error;
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class underflow_error;
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for each class xxx_error:
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class xxx_error : public exception // at least indirectly
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{
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public:
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explicit xxx_error(const string& what_arg);
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explicit xxx_error(const char* what_arg);
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virtual const char* what() const noexcept // returns what_arg
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};
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} // std
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*/
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#include <__config>
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#include <exception>
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#include <iosfwd> // for string forward decl
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#ifdef _LIBCPP_NO_EXCEPTIONS
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#include <cstdlib>
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#endif
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#ifndef _LIBCPP_ABI_VCRUNTIME
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class _LIBCPP_HIDDEN __libcpp_refstring
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{
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const char* __imp_;
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bool __uses_refcount() const;
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public:
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explicit __libcpp_refstring(const char* __msg);
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__libcpp_refstring(const __libcpp_refstring& __s) _NOEXCEPT;
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__libcpp_refstring& operator=(const __libcpp_refstring& __s) _NOEXCEPT;
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~__libcpp_refstring();
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const char* c_str() const _NOEXCEPT {return __imp_;}
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};
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#endif // !_LIBCPP_ABI_VCRUNTIME
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_LIBCPP_END_NAMESPACE_STD
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namespace std // purposefully not using versioning namespace
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{
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class _LIBCPP_EXCEPTION_ABI logic_error
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: public exception
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{
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#ifndef _LIBCPP_ABI_VCRUNTIME
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private:
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_VSTD::__libcpp_refstring __imp_;
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public:
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explicit logic_error(const string&);
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explicit logic_error(const char*);
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logic_error(const logic_error&) _NOEXCEPT;
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logic_error& operator=(const logic_error&) _NOEXCEPT;
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virtual ~logic_error() _NOEXCEPT;
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virtual const char* what() const _NOEXCEPT;
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#else
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public:
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explicit logic_error(const _VSTD::string&); // Symbol uses versioned std::string
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_LIBCPP_INLINE_VISIBILITY explicit logic_error(const char* __s) : exception(__s) {}
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI runtime_error
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: public exception
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{
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#ifndef _LIBCPP_ABI_VCRUNTIME
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private:
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_VSTD::__libcpp_refstring __imp_;
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public:
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explicit runtime_error(const string&);
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explicit runtime_error(const char*);
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runtime_error(const runtime_error&) _NOEXCEPT;
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runtime_error& operator=(const runtime_error&) _NOEXCEPT;
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virtual ~runtime_error() _NOEXCEPT;
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virtual const char* what() const _NOEXCEPT;
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#else
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public:
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explicit runtime_error(const _VSTD::string&); // Symbol uses versioned std::string
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_LIBCPP_INLINE_VISIBILITY explicit runtime_error(const char* __s) : exception(__s) {}
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#endif // _LIBCPP_ABI_VCRUNTIME
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};
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class _LIBCPP_EXCEPTION_ABI domain_error
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: public logic_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit domain_error(const string& __s) : logic_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit domain_error(const char* __s) : logic_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~domain_error() _NOEXCEPT;
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI invalid_argument
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: public logic_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit invalid_argument(const string& __s) : logic_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit invalid_argument(const char* __s) : logic_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~invalid_argument() _NOEXCEPT;
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI length_error
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: public logic_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit length_error(const string& __s) : logic_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit length_error(const char* __s) : logic_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~length_error() _NOEXCEPT;
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI out_of_range
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: public logic_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit out_of_range(const string& __s) : logic_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit out_of_range(const char* __s) : logic_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~out_of_range() _NOEXCEPT;
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI range_error
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: public runtime_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit range_error(const string& __s) : runtime_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit range_error(const char* __s) : runtime_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~range_error() _NOEXCEPT;
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI overflow_error
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: public runtime_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit overflow_error(const string& __s) : runtime_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit overflow_error(const char* __s) : runtime_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~overflow_error() _NOEXCEPT;
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#endif
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};
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class _LIBCPP_EXCEPTION_ABI underflow_error
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: public runtime_error
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{
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public:
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_LIBCPP_INLINE_VISIBILITY explicit underflow_error(const string& __s) : runtime_error(__s) {}
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_LIBCPP_INLINE_VISIBILITY explicit underflow_error(const char* __s) : runtime_error(__s) {}
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#ifndef _LIBCPP_ABI_VCRUNTIME
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virtual ~underflow_error() _NOEXCEPT;
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#endif
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};
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} // std
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_LIBCPP_BEGIN_NAMESPACE_STD
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// in the dylib
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_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_runtime_error(const char*);
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_logic_error(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw logic_error(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_domain_error(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw domain_error(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_invalid_argument(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw invalid_argument(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_length_error(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw length_error(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_out_of_range(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw out_of_range(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_range_error(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw range_error(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_overflow_error(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw overflow_error(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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void __throw_underflow_error(const char*__msg)
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{
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#ifndef _LIBCPP_NO_EXCEPTIONS
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throw underflow_error(__msg);
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#else
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((void)__msg);
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_VSTD::abort();
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#endif
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STDEXCEPT
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