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// <list>
10
11// void clear() noexcept; // constexpr since C++26
12
13#include <list>
14#include <cassert>
15
16#include "test_macros.h"
17#include "min_allocator.h"
18
19TEST_CONSTEXPR_CXX26 bool test() {
20 {
21 int a[] = {1, 2, 3};
22 std::list<int> c(a, a + 3);
23 ASSERT_NOEXCEPT(c.clear());
24 c.clear();
25 assert(c.empty());
26 }
27#if TEST_STD_VER >= 11
28 {
29 int a[] = {1, 2, 3};
30 std::list<int, min_allocator<int>> c(a, a + 3);
31 ASSERT_NOEXCEPT(c.clear());
32 c.clear();
33 assert(c.empty());
34 }
35#endif
36
37 return true;
38}
39
40int main(int, char**) {
41 assert(test());
42#if TEST_STD_VER >= 26
43 static_assert(test());
44#endif
45
46 return 0;
47}
48

source code of libcxx/test/std/containers/sequences/list/list.modifiers/clear.pass.cpp