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 // <filesystem> 12 13 // class path 14 15 // void swap(path& rhs) noexcept; 16 17 #include "filesystem_include.h" 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 #include "test_iterators.h" 23 #include "count_new.h" 24 #include "filesystem_test_helper.h" 25 26 27 struct SwapTestcase { 28 const char* value1; 29 const char* value2; 30 }; 31 32 #define LONG_STR1 "_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG" 33 #define LONG_STR2 "_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2" 34 const SwapTestcase TestCases[] = 35 { 36 {"", ""} 37 , {"shortstr", LONG_STR1} 38 , {LONG_STR1, "shortstr"} 39 , {LONG_STR1, LONG_STR2} 40 }; 41 #undef LONG_STR1 42 #undef LONG_STR2 43 44 int main(int, char**) 45 { 46 using namespace fs; 47 { 48 path p; 49 ASSERT_NOEXCEPT(p.swap(p)); 50 ASSERT_SAME_TYPE(void, decltype(p.swap(p))); 51 } 52 for (auto const & TC : TestCases) { 53 path p1(TC.value1); 54 path p2(TC.value2); 55 { 56 DisableAllocationGuard g; 57 p1.swap(p2); 58 } 59 assert(p1 == TC.value2); 60 assert(p2 == TC.value1); 61 { 62 DisableAllocationGuard g; 63 p1.swap(p2); 64 } 65 assert(p1 == TC.value1); 66 assert(p2 == TC.value2); 67 } 68 // self-swap 69 { 70 const char* Val = "aoeuaoeuaoeuaoeuaoeuaoeuaoeuaoeuaoeu"; 71 path p1(Val); 72 assert(p1 == Val); 73 { 74 DisableAllocationGuard g; 75 p1.swap(p1); 76 } 77 assert(p1 == Val); 78 } 79 80 return 0; 81 } 82