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// <unordered_set>
10
11// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
12// class Alloc = allocator<Value>>
13// class unordered_set
14
15// void clear() noexcept;
16
17#include <unordered_set>
18#include <cassert>
19
20#include "test_macros.h"
21#include "min_allocator.h"
22
23int main(int, char**)
24{
25 {
26 typedef std::unordered_set<int> C;
27 typedef int P;
28 P a[] =
29 {
30 P(1),
31 P(2),
32 P(3),
33 P(4),
34 P(1),
35 P(2)
36 };
37 C c(a, a + sizeof(a)/sizeof(a[0]));
38 ASSERT_NOEXCEPT(c.clear());
39 c.clear();
40 assert(c.size() == 0);
41 }
42#if TEST_STD_VER >= 11
43 {
44 typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
45 typedef int P;
46 P a[] =
47 {
48 P(1),
49 P(2),
50 P(3),
51 P(4),
52 P(1),
53 P(2)
54 };
55 C c(a, a + sizeof(a)/sizeof(a[0]));
56 ASSERT_NOEXCEPT(c.clear());
57 c.clear();
58 assert(c.size() == 0);
59 }
60#endif
61
62 return 0;
63}
64

source code of libcxx/test/std/containers/unord/unord.set/clear.pass.cpp