File: empty.pass.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (54 lines) | stat: -rw-r--r-- 1,118 bytes parent folder | download | duplicates (20)
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;
}