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 | // class array |
12 | |
13 | // constexpr bool empty() const noexcept; |
14 | |
15 | #include <array> |
16 | #include <cassert> |
17 | |
18 | #include "test_macros.h" |
19 | |
20 | TEST_CONSTEXPR_CXX14 bool tests() { |
21 | { |
22 | typedef std::array<int, 2> C; |
23 | C c = {}; |
24 | ASSERT_NOEXCEPT(c.empty()); |
25 | assert(!c.empty()); |
26 | } |
27 | { |
28 | typedef std::array<int, 0> C; |
29 | C c = {}; |
30 | ASSERT_NOEXCEPT(c.empty()); |
31 | assert(c.empty()); |
32 | } |
33 | |
34 | return true; |
35 | } |
36 | |
37 | int main(int, char**) { |
38 | tests(); |
39 | #if TEST_STD_VER >= 14 |
40 | static_assert(tests(), "" ); |
41 | #endif |
42 | |
43 | #if TEST_STD_VER >= 11 |
44 | // Sanity check for constexpr in C++11 |
45 | { |
46 | constexpr std::array<int, 3> array = {}; |
47 | static_assert(!array.empty(), "" ); |
48 | } |
49 | #endif |
50 | |
51 | return 0; |
52 | } |
53 | |