44 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++03, c++11, c++14, c++1710 11// <string>12 13// template<> struct char_traits<char8_t>14 15// static char_type* assign(char_type* s, size_t n, char_type a);16 17#include <string>18#include <cassert>19 20#include "test_macros.h"21 22TEST_CONSTEXPR_CXX20 bool test() {23#ifndef TEST_HAS_NO_CHAR8_T24 char8_t s2[3] = {0};25 assert(std::char_traits<char8_t>::assign(s2, 3, char8_t(5)) == s2);26 assert(s2[0] == char8_t(5));27 assert(s2[1] == char8_t(5));28 assert(s2[2] == char8_t(5));29 assert(std::char_traits<char8_t>::assign(NULL, 0, char8_t(5)) == NULL);30#endif31 32 return true;33}34 35int main(int, char**) {36 test();37 38#if TEST_STD_VER > 1739 static_assert(test());40#endif41 42 return 0;43}44