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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03 10 11 // <string> 12 13 // basic_string(basic_string<charT,traits,Allocator>&& str); // constexpr since C++20 14 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 23 template <class S> test(S s0)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 37 template <class Alloc> test_string(Alloc const & a)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 test()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 main(int,char **)54int main(int, char**) { 55 test(); 56 #if TEST_STD_VER > 17 57 static_assert(test()); 58 #endif 59 60 return 0; 61 } 62