80 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// void swap(basic_string& s); // constexpr since C++2012 13#include <string>14#include <stdexcept>15#include <algorithm>16#include <cassert>17 18#include "test_macros.h"19#include "min_allocator.h"20#include "asan_testing.h"21#include "operator_hijacker.h"22 23template <class S>24TEST_CONSTEXPR_CXX20 void test(S s1, S s2) {25 S s1_ = s1;26 S s2_ = s2;27 s1.swap(s2);28 LIBCPP_ASSERT(s1.__invariants());29 LIBCPP_ASSERT(s2.__invariants());30 assert(s1 == s2_);31 assert(s2 == s1_);32 LIBCPP_ASSERT(is_string_asan_correct(s1));33 LIBCPP_ASSERT(is_string_asan_correct(s2));34}35 36template <class S>37TEST_CONSTEXPR_CXX20 void test_string() {38 test(S(""), S(""));39 test(S(""), S("12345"));40 test(S(""), S("1234567890"));41 test(S(""), S("12345678901234567890"));42 test(S("abcde"), S(""));43 test(S("abcde"), S("12345"));44 test(S("abcde"), S("1234567890"));45 test(S("abcde"), S("12345678901234567890"));46 test(S("abcdefghij"), S(""));47 test(S("abcdefghij"), S("12345"));48 test(S("abcdefghij"), S("1234567890"));49 test(S("abcdefghij"), S("12345678901234567890"));50 test(S("abcdefghijklmnopqrst"), S(""));51 test(S("abcdefghijklmnopqrst"), S("12345"));52 test(S("abcdefghijklmnopqrst"), S("1234567890"));53 test(S("abcdefghijklmnopqrst"), S("12345678901234567890"));54 test(S("abcdefghijklmnopqrstabcdefghijklmnopqrst"), S(""));55 test(S("abcdefghijklmnopqrstabcdefghijklmnopqrst"), S("12345"));56 test(S("abcdefghijklmnopqrstabcdefghijklmnopqrst"), S("1234567890"));57 test(S("abcdefghijklmnopqrstabcdefghijklmnopqrst"), S("12345678901234567890"));58 test(S("abcdefghijklmnopqrstabcdefghijklmnopqrst"), S("12345678901234567890abcdefghijklmnopqrst"));59}60 61TEST_CONSTEXPR_CXX20 bool test() {62 test_string<std::string>();63#if TEST_STD_VER >= 1164 test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();65 test_string<std::basic_string<char, std::char_traits<char>, safe_allocator<char>>>();66 test_string<std::basic_string<char, std::char_traits<char>, operator_hijacker_allocator<char>>>();67#endif68 69 return true;70}71 72int main(int, char**) {73 test();74#if TEST_STD_VER > 1775 static_assert(test());76#endif77 78 return 0;79}80