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