62 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++0310 11// <string>12 13// basic_string(basic_string<charT,traits,Allocator>&& str); // constexpr since C++2014 15#include <string>16#include <cassert>17 18#include "test_macros.h"19#include "test_allocator.h"20#include "min_allocator.h"21#include "asan_testing.h"22 23template <class S>24TEST_CONSTEXPR_CXX20 void test(S s0) {25 S s1 = s0;26 S s2 = std::move(s0);27 LIBCPP_ASSERT(s2.__invariants());28 LIBCPP_ASSERT(s0.__invariants());29 assert(s2 == s1);30 assert(s2.capacity() >= s2.size());31 assert(s2.get_allocator() == s1.get_allocator());32 LIBCPP_ASSERT(is_string_asan_correct(s0));33 LIBCPP_ASSERT(is_string_asan_correct(s1));34 LIBCPP_ASSERT(is_string_asan_correct(s2));35}36 37template <class Alloc>38TEST_CONSTEXPR_CXX20 void test_string(Alloc const& a) {39 using S = std::basic_string<char, std::char_traits<char>, Alloc>;40 test(S(Alloc(a)));41 test(S("1", Alloc(a)));42 test(S("1234567890123456789012345678901234567890123456789012345678901234567890", Alloc(a)));43}44 45TEST_CONSTEXPR_CXX20 bool test() {46 test_string(std::allocator<char>());47 test_string(test_allocator<char>());48 test_string(test_allocator<char>(3));49 test_string(min_allocator<char>());50 51 return true;52}53 54int main(int, char**) {55 test();56#if TEST_STD_VER > 1757 static_assert(test());58#endif59 60 return 0;61}62