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// class unordered_multiset
12
13// size_type max_size() const;
14
15#include <cassert>
16#include <limits>
17#include <type_traits>
18#include <unordered_set>
19
20#include "test_allocator.h"
21#include "test_macros.h"
22
23int main(int, char**)
24{
25 {
26 typedef limited_allocator<int, 10> A;
27 typedef std::unordered_multiset<int, std::hash<int>, std::equal_to<int>,
28 A>
29 C;
30 C c;
31 assert(c.max_size() <= 10);
32 LIBCPP_ASSERT(c.max_size() == 10);
33 }
34 {
35 typedef limited_allocator<int, (std::size_t)-1> A;
36 typedef std::unordered_multiset<int, std::hash<int>, std::equal_to<int>,
37 A>
38 C;
39 const C::size_type max_dist =
40 static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
41 C c;
42 assert(c.max_size() <= max_dist);
43 LIBCPP_ASSERT(c.max_size() == max_dist);
44 }
45 {
46 typedef std::unordered_multiset<char> C;
47 const C::size_type max_dist =
48 static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
49 C c;
50 assert(c.max_size() <= max_dist);
51 assert(c.max_size() <= alloc_max_size(c.get_allocator()));
52 }
53
54 return 0;
55}
56

source code of libcxx/test/std/containers/unord/unord.multiset/max_size.pass.cpp