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
|
//===----------------------------------------------------------------------===//
//
// 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>
// An array is a contiguous container
#include <array>
#include <cassert>
#include "test_macros.h"
template <class Container>
TEST_CONSTEXPR_CXX14 void assert_contiguous(Container const& c)
{
for (size_t i = 0; i < c.size(); ++i)
assert(*(c.begin() + i) == *(std::addressof(*c.begin()) + i));
}
TEST_CONSTEXPR_CXX17 bool tests()
{
assert_contiguous(std::array<double, 0>());
assert_contiguous(std::array<double, 1>());
assert_contiguous(std::array<double, 2>());
assert_contiguous(std::array<double, 3>());
assert_contiguous(std::array<char, 0>());
assert_contiguous(std::array<char, 1>());
assert_contiguous(std::array<char, 2>());
assert_contiguous(std::array<char, 3>());
return true;
}
int main(int, char**)
{
tests();
#if TEST_STD_VER >= 17 // begin() & friends are constexpr in >= C++17 only
static_assert(tests(), "");
#endif
return 0;
}
|
