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
main(int,char **)23 int 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