| 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, c++11, c++14 |
| 10 | // UNSUPPORTED: availability-filesystem-missing |
| 11 | |
| 12 | // <filesystem> |
| 13 | |
| 14 | // class path |
| 15 | |
| 16 | // void swap(path& rhs) noexcept; |
| 17 | |
| 18 | #include <filesystem> |
| 19 | #include <cassert> |
| 20 | #include <type_traits> |
| 21 | |
| 22 | #include "assert_macros.h" |
| 23 | #include "count_new.h" |
| 24 | #include "test_iterators.h" |
| 25 | namespace fs = std::filesystem; |
| 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 | {.value1: "" , .value2: "" } |
| 37 | , {.value1: "shortstr" , LONG_STR1} |
| 38 | , {LONG_STR1, .value2: "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(rhs&: 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(rhs&: p2); |
| 58 | } |
| 59 | assert(p1 == TC.value2); |
| 60 | assert(p2 == TC.value1); |
| 61 | { |
| 62 | DisableAllocationGuard g; |
| 63 | p1.swap(rhs&: 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(rhs&: p1); |
| 76 | } |
| 77 | assert(p1 == Val); |
| 78 | } |
| 79 | |
| 80 | return 0; |
| 81 | } |
| 82 | |