1// (C) Copyright Beman Dawes 2008 2 3// Use, modification and distribution are subject to the 4// Boost Software License, Version 1.0. (See accompanying file 5// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6 7// See http://www.boost.org/libs/config for more information. 8 9// MACRO: BOOST_NO_CXX11_UNICODE_LITERALS 10// TITLE: C++0x unicode literals unavailable 11// DESCRIPTION: The compiler does not support C++0x Unicode literals (N2442) 12 13namespace boost_no_cxx11_unicode_literals { 14 15template <class CharT> 16void quiet_warning(const CharT*){} 17 18int test() 19{ 20#if defined(__cpp_char8_type) || defined(__cpp_char8_t) 21 // The change to char8_t in C++20 is a breaking change to the std: 22 const char8_t* c8 = u8""; 23#else 24 const char* c8 = u8""; 25#endif 26 const char16_t* c16 = u""; 27 const char32_t* c32 = U""; 28 quiet_warning(c8); 29 quiet_warning(c16); 30 quiet_warning(c32); 31 return 0; 32} 33 34} 35