empty.pass.cpp
1.09 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <array>
// class array
// constexpr bool empty() const noexcept;
#include <array>
#include <cassert>
#include "test_macros.h"
TEST_CONSTEXPR_CXX14 bool tests()
{
{
typedef std::array<int, 2> C;
C c = {};
ASSERT_NOEXCEPT(c.empty());
assert(!c.empty());
}
{
typedef std::array<int, 0> C;
C c = {};
ASSERT_NOEXCEPT(c.empty());
assert(c.empty());
}
return true;
}
int main(int, char**)
{
tests();
#if TEST_STD_VER >= 14
static_assert(tests(), "");
#endif
#if TEST_STD_VER >= 11
// Sanity check for constexpr in C++11
{
constexpr std::array<int, 3> array = {};
static_assert(!array.empty(), "");
}
#endif
return 0;
}