maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Implement string suffixes from N3642 

llvm-svn: 186956
This commit is contained in:
Marshall Clow 2013-07-23 17:05:24 +00:00
parent 43295c02f1
commit ca0be23b39
6 changed files with 170 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
libcxx/include/string
View File

@ -422,6 +422,11 @@ template <> struct hash<u16string>;
template <> struct hash<u32string>;
template <> struct hash<wstring>;
basic_string<char> operator "" s( const char *str, size_t len ); // C++14
basic_string<wchar_t> operator "" s( const wchar_t *str, size_t len ); // C++14
basic_string<char16_t> operator "" s( const char16_t *str, size_t len ); // C++14
basic_string<char32_t> operator "" s( const char32_t *str, size_t len ); // C++14
} // std
*/
@ -4097,6 +4102,42 @@ getline(basic_istream<_CharT, _Traits>&& __is,
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#if _LIBCPP_STD_VER > 11
// Literal suffixes for basic_string [basic.string.literals]
// inline // Deviation from N3690.
// We believe the inline to be a defect and have submitted an LWG issue.
// An LWG issue number has not yet been assigned.
namespace literals
{
inline namespace string_literals
{
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char> operator "" s( const char *__str, size_t __len )
{
return basic_string<char> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY
basic_string<wchar_t> operator "" s( const wchar_t *__str, size_t __len )
{
return basic_string<wchar_t> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char16_t> operator "" s( const char16_t *__str, size_t __len )
{
return basic_string<char16_t> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char32_t> operator "" s( const char32_t *__str, size_t __len )
{
return basic_string<char32_t> (__str, __len);
}
}
}
#endif
_LIBCPP_EXTERN_TEMPLATE(class basic_string<char>)
_LIBCPP_EXTERN_TEMPLATE(class basic_string<wchar_t>)

47
libcxx/test/strings/basic.string.literals/literal.pass.cpp Normal file
View File

@ -0,0 +1,47 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <string>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
using namespace std::literals::string_literals;
static_assert ( std::is_same<decltype( "Hi"s), std::string>::value, "" );
static_assert ( std::is_same<decltype( u8"Hi"s), std::string>::value, "" );
static_assert ( std::is_same<decltype( L"Hi"s), std::wstring>::value, "" );
static_assert ( std::is_same<decltype( u"Hi"s), std::u16string>::value, "" );
static_assert ( std::is_same<decltype( U"Hi"s), std::u32string>::value, "" );
std::string foo;
std::wstring Lfoo;
std::u16string ufoo;
std::u32string Ufoo;
foo = ""s; assert( foo.size() == 0);
foo = u8""s; assert( foo.size() == 0);
Lfoo = L""s; assert(Lfoo.size() == 0);
ufoo = u""s; assert(ufoo.size() == 0);
Ufoo = U""s; assert(Ufoo.size() == 0);
foo = " "s; assert( foo.size() == 1);
foo = u8" "s; assert( foo.size() == 1);
Lfoo = L" "s; assert(Lfoo.size() == 1);
ufoo = u" "s; assert(ufoo.size() == 1);
Ufoo = U" "s; assert(Ufoo.size() == 1);
foo = "ABC"s; assert( foo == "ABC"); assert( foo == std::string ( "ABC"));
foo = u8"ABC"s; assert( foo == u8"ABC"); assert( foo == std::string (u8"ABC"));
Lfoo = L"ABC"s; assert(Lfoo == L"ABC"); assert(Lfoo == std::wstring ( L"ABC"));
ufoo = u"ABC"s; assert(ufoo == u"ABC"); assert(ufoo == std::u16string( u"ABC"));
Ufoo = U"ABC"s; assert(Ufoo == U"ABC"); assert(Ufoo == std::u32string( U"ABC"));
#endif
}

22
libcxx/test/strings/basic.string.literals/literal1.fail.cpp Normal file
View File

@ -0,0 +1,22 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <string>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
using namespace std;
std::string foo = ""s; // should fail w/conversion operator not found
#else
#error
#endif
}

20
libcxx/test/strings/basic.string.literals/literal1.pass.cpp Normal file
View File

@ -0,0 +1,20 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <string>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
using namespace std::literals;
std::string foo = ""s;
#endif
}

20
libcxx/test/strings/basic.string.literals/literal2.fail.cpp Normal file
View File

@ -0,0 +1,20 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <string>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
std::string foo = ""s; // should fail w/conversion operator not found
#else
#error
#endif
}

20
libcxx/test/strings/basic.string.literals/literal2.pass.cpp Normal file
View File

@ -0,0 +1,20 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <string>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
using namespace std::literals::string_literals;
std::string foo = ""s;
#endif
}