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 // std::array is explicitly allowed to be initialized with A a = { init-list };.
26 // Disable the missing braces warning for this reason.
27 #include "disable_missing_braces_warning.h"
28 
29 TEST_CONSTEXPR_CXX20 bool tests()
30 {
31     {
32         typedef std::array<int, 3> C;
33         C c1 = {1, 2, 3};
34         C c2 = {1, 2, 3};
35         C c3 = {3, 2, 1};
36         C c4 = {1, 2, 1};
37         assert(testComparisons6(c1, c2, true, false));
38         assert(testComparisons6(c1, c3, false, true));
39         assert(testComparisons6(c1, c4, false, false));
40     }
41     {
42         typedef std::array<int, 0> C;
43         C c1 = {};
44         C c2 = {};
45         assert(testComparisons6(c1, c2, true, false));
46     }
47 
48     return true;
49 }
50 
51 int main(int, char**)
52 {
53     tests();
54 #if TEST_STD_VER >= 20
55     static_assert(tests(), "");
56 #endif
57     return 0;
58 }
59