summaryrefslogtreecommitdiffstats
path: root/libcxx/test/std/containers/sequences/forwardlist/empty.pass.cpp
blob: 727904c9871338a3a564ea71a93c40f10a9e8b44 (plain)
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
//
//===----------------------------------------------------------------------===//

// <forward_list>

// class forward_list

// bool empty() const noexcept;

#include <forward_list>
#include <cassert>

#include "test_macros.h"
#include "min_allocator.h"

int main(int, char**)
{
    {
    typedef std::forward_list<int> C;
    C c;
    ASSERT_NOEXCEPT(c.empty());
    assert(c.empty());
    c.push_front(C::value_type(1));
    assert(!c.empty());
    c.clear();
    assert(c.empty());
    }
#if TEST_STD_VER >= 11
    {
    typedef std::forward_list<int, min_allocator<int>> C;
    C c;
    ASSERT_NOEXCEPT(c.empty());
    assert(c.empty());
    c.push_front(C::value_type(1));
    assert(!c.empty());
    c.clear();
    assert(c.empty());
    }
#endif

  return 0;
}
OpenPOWER on IntegriCloud