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// <forward_list>
10
11// class forward_list
12
13// bool empty() const noexcept;
14
15#include <forward_list>
16#include <cassert>
17
18#include "test_macros.h"
19#include "min_allocator.h"
20
21int main(int, char**)
22{
23 {
24 typedef std::forward_list<int> C;
25 C c;
26 ASSERT_NOEXCEPT(c.empty());
27 assert(c.empty());
28 c.push_front(val: C::value_type(1));
29 assert(!c.empty());
30 c.clear();
31 assert(c.empty());
32 }
33#if TEST_STD_VER >= 11
34 {
35 typedef std::forward_list<int, min_allocator<int>> C;
36 C c;
37 ASSERT_NOEXCEPT(c.empty());
38 assert(c.empty());
39 c.push_front(C::value_type(1));
40 assert(!c.empty());
41 c.clear();
42 assert(c.empty());
43 }
44#endif
45
46 return 0;
47}
48

source code of libcxx/test/std/containers/sequences/forwardlist/empty.pass.cpp