1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <string> 11 12 // Test for the existence of: 13 14 // basic_string typedef names 15 // typedef basic_string<char> string; 16 // typedef basic_string<char16_t> u16string; 17 // typedef basic_string<char32_t> u32string; 18 // typedef basic_string<wchar_t> wstring; 19 20 #include <string> 21 #include <type_traits> 22 23 int main() 24 { 25 static_assert((std::is_same<std::string, std::basic_string<char> >::value), ""); 26 static_assert((std::is_same<std::wstring, std::basic_string<wchar_t> >::value), ""); 27 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 28 static_assert((std::is_same<std::u16string, std::basic_string<char16_t> >::value), ""); 29 static_assert((std::is_same<std::u32string, std::basic_string<char32_t> >::value), ""); 30 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 31 } 32
