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 // <array>
10 
11 // bool operator==(array<T, N> const&, array<T, N> const&);   // constexpr in C++20
12 // bool operator!=(array<T, N> const&, array<T, N> const&);   // constexpr in C++20
13 // bool operator<(array<T, N> const&, array<T, N> const&);    // constexpr in C++20
14 // bool operator<=(array<T, N> const&, array<T, N> const&);   // constexpr in C++20
15 // bool operator>(array<T, N> const&, array<T, N> const&);    // constexpr in C++20
16 // bool operator>=(array<T, N> const&, array<T, N> const&);   // constexpr in C++20
17 
18 
19 #include <array>
20 #include <cassert>
21 
22 #include "test_macros.h"
23 #include "test_comparisons.h"
24 
25 TEST_CONSTEXPR_CXX20 bool tests()
26 {
27     {
28         typedef std::array<int, 3> C;
29         const C c1 = {1, 2, 3};
30         const C c2 = {1, 2, 3};
31         const C c3 = {3, 2, 1};
32         const C c4 = {1, 2, 1};
33         assert(testComparisons(c1, c2, true, false));
34         assert(testComparisons(c1, c3, false, true));
35         assert(testComparisons(c1, c4, false, false));
36     }
37     {
38         typedef std::array<int, 0> C;
39         const C c1 = {};
40         const C c2 = {};
41         assert(testComparisons(c1, c2, true, false));
42     }
43     {
44         typedef std::array<LessAndEqComp, 3> C;
45         const C c1 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(3)};
46         const C c2 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(3)};
47         const C c3 = {LessAndEqComp(3), LessAndEqComp(2), LessAndEqComp(1)};
48         const C c4 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(1)};
49         assert(testComparisons(c1, c2, true, false));
50         assert(testComparisons(c1, c3, false, true));
51         assert(testComparisons(c1, c4, false, false));
52     }
53     {
54         typedef std::array<LessAndEqComp, 0> C;
55         const C c1 = {};
56         const C c2 = {};
57         assert(testComparisons(c1, c2, true, false));
58     }
59 
60     return true;
61 }
62 
63 int main(int, char**)
64 {
65     tests();
66 #if TEST_STD_VER >= 20
67     static_assert(tests(), "");
68 #endif
69     return 0;
70 }
71