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libcxx_old/test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.../assign3.pass.cpp

34 lines
988 B
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <string>
// template<> struct char_traits<char8_t>
// static char_type* assign(char_type* s, size_t n, char_type a);
#include <string>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
char8_t s2[3] = {0};
assert(std::char_traits<char8_t>::assign(s2, 3, char8_t(5)) == s2);
assert(s2[0] == char8_t(5));
assert(s2[1] == char8_t(5));
assert(s2[2] == char8_t(5));
assert(std::char_traits<char8_t>::assign(NULL, 0, char8_t(5)) == NULL);
#endif
return 0;
}