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 {"", ""}
37 , {"shortstr", LONG_STR1}
38 , {LONG_STR1, "shortstr"}
39 , {LONG_STR1, LONG_STR2}
40 };
41 #undef LONG_STR1
42 #undef LONG_STR2
43
main(int,char **)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