60 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: !stdlib=libc++ && (c++03 || c++11 || c++14)10 11// <string_view>12 13// constexpr const _CharT* data() const noexcept;14 15#include <string_view>16#include <cassert>17#include <iterator>18 19#include "test_macros.h"20 21template <typename CharT>22void test(const CharT* s, std::size_t len) {23 std::basic_string_view<CharT> sv(s, len);24 assert(sv.length() == len);25 assert(sv.data() == s);26#if TEST_STD_VER > 1427 // make sure we pick up std::data, too!28 assert(sv.data() == std::data(sv));29#endif30}31 32int main(int, char**) {33 test("ABCDE", 5);34 test("a", 1);35 36#ifndef TEST_HAS_NO_WIDE_CHARACTERS37 test(L"ABCDE", 5);38 test(L"a", 1);39#endif40 41#if TEST_STD_VER >= 1142 test(u"ABCDE", 5);43 test(u"a", 1);44 45 test(U"ABCDE", 5);46 test(U"a", 1);47#endif48 49#if TEST_STD_VER > 1150 {51 constexpr const char* s = "ABC";52 constexpr std::basic_string_view<char> sv(s, 2);53 static_assert(sv.length() == 2, "");54 static_assert(sv.data() == s, "");55 }56#endif57 58 return 0;59}60