47 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// <string>10 11// const_iterator cend() const; // constexpr since C++2012 13#include <string>14#include <cassert>15 16#include "test_macros.h"17#include "min_allocator.h"18 19template <class S>20TEST_CONSTEXPR_CXX20 void test(const S& s) {21 typename S::const_iterator ce = s.cend();22 assert(ce == s.end());23}24 25template <class S>26TEST_CONSTEXPR_CXX20 void test_string() {27 test(S());28 test(S("123"));29}30 31TEST_CONSTEXPR_CXX20 bool test() {32 test_string<std::string>();33#if TEST_STD_VER >= 1134 test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char> > >();35#endif36 37 return true;38}39 40int main(int, char**) {41 test();42#if TEST_STD_VER > 1743 static_assert(test());44#endif45 return 0;46}47