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//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// <string>
// Test for the existence of:
// basic_string typedef names
// typedef basic_string<char> string;
// typedef basic_string<char16_t> u16string;
// typedef basic_string<char8_t> u8string; // C++20
// typedef basic_string<char32_t> u32string;
// typedef basic_string<wchar_t> wstring;
#include <string>
#include <type_traits>
#include "test_macros.h"
int main()
{
static_assert((std::is_same<std::string, std::basic_string<char> >::value), "");
static_assert((std::is_same<std::wstring, std::basic_string<wchar_t> >::value), "");
#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
static_assert((std::is_same<std::u8string, std::basic_string<char8_t> >::value), "");
#endif
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
static_assert((std::is_same<std::u16string, std::basic_string<char16_t> >::value), "");
static_assert((std::is_same<std::u32string, std::basic_string<char32_t> >::value), "");
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
}
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