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LWG issues 2174/5/6 - mark wstring_convert::converted as noexcept, and make (some of) the constructors for wstring_convert and wbuffer_convert as explicit. Add configuration macro _LIBCPP_EXPLICIT_AFTER_CXX11

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189398 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow 2013-08-27 20:18:59 +00:00
parent 5f36c68cb0
commit 83179a788f
6 changed files with 33 additions and 14 deletions
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2
include/__config
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@ -570,8 +570,10 @@ template <unsigned> struct __static_assert_check {};
#if _LIBCPP_STD_VER <= 11
#define _LIBCPP_CONSTEXPR_AFTER_CXX11
#define _LIBCPP_EXPLICIT_AFTER_CXX11
#else
#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
#endif
#endif // _LIBCPP_CONFIG

27
include/locale
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@ -93,10 +93,12 @@ public:
typedef typename Codecvt::state_type state_type;
typedef typename wide_string::traits_type::int_type int_type;
wstring_convert(Codecvt* pcvt = new Codecvt);
explicit wstring_convert(Codecvt* pcvt = new Codecvt); // explicit in C++14
wstring_convert(Codecvt* pcvt, state_type state);
wstring_convert(const byte_string& byte_err,
explicit wstring_convert(const byte_string& byte_err, // explicit in C++14
const wide_string& wide_err = wide_string());
wstring_convert(const wstring_convert&) = delete; // C++14
wstring_convert & operator=(const wstring_convert &) = delete; // C++14
~wstring_convert();
wide_string from_bytes(char byte);
@ -109,7 +111,7 @@ public:
byte_string to_bytes(const wide_string& wstr);
byte_string to_bytes(const Elem* first, const Elem* last);
size_t converted() const;
size_t converted() const; // noexcept in C++14
state_type state() const;
};
@ -120,9 +122,12 @@ class wbuffer_convert
public:
typedef typename Tr::state_type state_type;
wbuffer_convert(streambuf* bytebuf = 0, Codecvt* pcvt = new Codecvt,
state_type state = state_type());
explicit wbuffer_convert(streambuf* bytebuf = 0, Codecvt* pcvt = new Codecvt,
state_type state = state_type()); // explicit in C++14
wbuffer_convert(const wbuffer_convert&) = delete; // C++14
wbuffer_convert & operator=(const wbuffer_convert &) = delete; // C++14
~wbuffer_convert(); // C++14
streambuf* rdbuf() const;
streambuf* rdbuf(streambuf* bytebuf);
@ -4009,9 +4014,9 @@ private:
wstring_convert(const wstring_convert& __wc);
wstring_convert& operator=(const wstring_convert& __wc);
public:
wstring_convert(_Codecvt* __pcvt = new _Codecvt);
_LIBCPP_EXPLICIT_AFTER_CXX11 wstring_convert(_Codecvt* __pcvt = new _Codecvt);
wstring_convert(_Codecvt* __pcvt, state_type __state);
wstring_convert(const byte_string& __byte_err,
_LIBCPP_EXPLICIT_AFTER_CXX11 wstring_convert(const byte_string& __byte_err,
const wide_string& __wide_err = wide_string());
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
wstring_convert(wstring_convert&& __wc);
@ -4041,7 +4046,7 @@ public:
byte_string to_bytes(const _Elem* __first, const _Elem* __last);
_LIBCPP_ALWAYS_INLINE
size_t converted() const {return __cvtcount_;}
size_t converted() const _NOEXCEPT {return __cvtcount_;}
_LIBCPP_ALWAYS_INLINE
state_type state() const {return __cvtstate_;}
};
@ -4275,8 +4280,8 @@ private:
wbuffer_convert(const wbuffer_convert&);
wbuffer_convert& operator=(const wbuffer_convert&);
public:
wbuffer_convert(streambuf* __bytebuf = 0, _Codecvt* __pcvt = new _Codecvt,
state_type __state = state_type());
_LIBCPP_EXPLICIT_AFTER_CXX11 wbuffer_convert(streambuf* __bytebuf = 0,
_Codecvt* __pcvt = new _Codecvt, state_type __state = state_type());
~wbuffer_convert();
_LIBCPP_INLINE_VISIBILITY

4
test/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
View File

@ -37,6 +37,10 @@ void operator delete(void* p) throw()
int main()
{
typedef std::wbuffer_convert<std::codecvt_utf8<wchar_t> > B;
#if _LIBCPP_STD_VER > 11
static_assert(!std::is_convertible<std::streambuf*, B>::value, "");
static_assert( std::is_constructible<B, std::streambuf*>::value, "");
#endif
{
B b;
assert(b.rdbuf() == nullptr);

4
test/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
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@ -30,5 +30,9 @@ int main()
typedef std::wstring_convert<Codecvt> Myconv;
Myconv myconv(new Codecvt);
assert(myconv.converted() == 0);
#if _LIBCPP_STD_VER > 11
static_assert(!std::is_convertible<Codecvt*, Myconv>::value, "");
static_assert( std::is_constructible<Myconv, Codecvt*>::value, "");
#endif
}
}

4
test/localization/locales/locale.convenience/conversions/conversions.string/ctor_err_string.pass.cpp
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@ -22,6 +22,10 @@ int main()
{
typedef std::codecvt_utf8<wchar_t> Codecvt;
typedef std::wstring_convert<Codecvt> Myconv;
#if _LIBCPP_STD_VER > 11
static_assert(!std::is_convertible<std::string, Myconv>::value, "");
static_assert( std::is_constructible<Myconv, std::string>::value, "");
#endif
{
Myconv myconv;
try

6
www/cxx1y_status.html
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@ -158,9 +158,9 @@
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2138">2138</a></td><td>atomic_flag::clear ordering constraints</td><td>Bristol</td><td></td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2140">2140</a></td><td>notify_all_at_thread_exit synchronization</td><td>Bristol</td><td></td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2144">2144</a></td><td>Missing noexcept specification in type_index</td><td>Bristol</td><td>Complete</td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2174">2174</a></td><td>wstring_convert::converted() should be noexcept</td><td>Bristol</td><td></td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2175">2175</a></td><td>string_convert and wbuffer_convert validity</td><td>Bristol</td><td></td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2176">2176</a></td><td>Special members for wstring_convert and wbuffer_convert</td><td>Bristol</td><td></td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2174">2174</a></td><td>wstring_convert::converted() should be noexcept</td><td>Bristol</td><td>Complete</td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2175">2175</a></td><td>string_convert and wbuffer_convert validity</td><td>Bristol</td><td>Complete</td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2176">2176</a></td><td>Special members for wstring_convert and wbuffer_convert</td><td>Bristol</td><td>Complete</td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2177">2177</a></td><td>Requirements on Copy/MoveInsertable</td><td>Bristol</td><td></td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2185">2185</a></td><td>Missing throws clause for future/shared_future::wait_for/wait_until</td><td>Bristol</td><td>Complete</td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2187">2187</a></td><td>vector&lt;bool&gt; is missing emplace and emplace_back member functions</td><td>Bristol</td><td>Complete</td></tr>