71 lines
4.1 KiB
C++
Executable File
71 lines
4.1 KiB
C++
Executable File
// boost cxx11_char_types.hpp --------------------------------------------------------//
|
|
|
|
// Copyright Beman Dawes 2011
|
|
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// See http://www.boost.org/LICENSE_1_0.txt
|
|
|
|
//--------------------------------------------------------------------------------------//
|
|
// //
|
|
// The purpose of this header is to emulate the C++11 char16_t and char32_t //
|
|
// character and string types so that they can be used in both C++11 and C++03 //
|
|
// programs. //
|
|
// //
|
|
// The emulation names use char16/char32 rather than char16_t/char32_t to avoid use //
|
|
// of names that are keywords in C++11. //
|
|
// //
|
|
// The emulation names are placed in namespace boost, as is usual for Boost C++11 //
|
|
// emulation names such as those in header <boost/cstdint.hpp>. //
|
|
// //
|
|
// An alternative would would have been to place the C++11 emulation names at global //
|
|
// scope, and put the C++11 string types in namespace std. That is the approach taken //
|
|
// by Microsoft Visual Studio 2010, but is controversion with some Boost users and //
|
|
// developers, and runs counter to usual Boost practice. //
|
|
// //
|
|
// Thanks to Mathias Gaunard and others for discussions leading to the final form //
|
|
// of these typedefs. //
|
|
// //
|
|
// Boost C++11 C++03 //
|
|
// ---------------- -------------- -------------------------------- //
|
|
// boost::char16 char16_t uint16_t //
|
|
// boost::char32 char32_t uint32_t //
|
|
// boost::u16string std::u16string std::basic_string<boost::char16> //
|
|
// boost::u32string std::u32string std::basic_string<boost::char32> //
|
|
// //
|
|
// Uses the typedefs provided by Microsoft Visual C++ 2010 if present //
|
|
// //
|
|
// Thanks to Mathias Gaunard and others for discussions leading to the final form //
|
|
// of these typedefs. //
|
|
// //
|
|
//--------------------------------------------------------------------------------------//
|
|
|
|
#if !defined(BOOST_CXX11_CHAR_TYPES_HPP)
|
|
# define BOOST_CXX11_CHAR_TYPES_HPP
|
|
|
|
# include <boost/config.hpp>
|
|
# include <boost/cstdint.hpp>
|
|
# include <string>
|
|
|
|
namespace boost
|
|
{
|
|
|
|
# if defined(BOOST_NO_CXX11_CHAR16_T) && (!defined(_MSC_VER) || _MSC_VER < 1600) // 1600 == VC++10
|
|
typedef boost::uint_least16_t char16;
|
|
typedef std::basic_string<boost::char16> u16string;
|
|
# else
|
|
typedef char16_t char16;
|
|
typedef std::u16string u16string;
|
|
# endif
|
|
|
|
# if defined(BOOST_NO_CXX11_CHAR32_T) && (!defined(_MSC_VER) || _MSC_VER < 1600) // 1600 == VC++10
|
|
typedef boost::uint_least32_t char32;
|
|
typedef std::basic_string<boost::char32> u32string;
|
|
# else
|
|
typedef char32_t char32;
|
|
typedef std::u32string u32string;
|
|
# endif
|
|
|
|
} // namespace boost
|
|
|
|
#endif // !defined(BOOST_CXX11_CHAR_TYPES_HPP)
|