xref: /llvm-project/libcxx/test/std/containers/sequences/deque/deque.capacity/max_size.pass.cpp (revision 10ec9276d40024c23a481e6671dad1521151dd85)
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 // <deque>
10 
11 // size_type max_size() const;
12 
13 #include "asan_testing.h"
14 #include <cassert>
15 #include <deque>
16 #include <limits>
17 #include <type_traits>
18 
19 #include "test_allocator.h"
20 #include "test_macros.h"
21 
main(int,char **)22 int main(int, char**) {
23   {
24     typedef limited_allocator<int, 10> A;
25     typedef std::deque<int, A> C;
26     C c;
27     assert(c.max_size() <= 10);
28     LIBCPP_ASSERT(c.max_size() == 10);
29     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
30   }
31   {
32     typedef limited_allocator<int, (std::size_t)-1> A;
33     typedef std::deque<int, A> C;
34     const C::size_type max_dist =
35         static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
36     C c;
37     assert(c.max_size() <= max_dist);
38     LIBCPP_ASSERT(c.max_size() == max_dist);
39     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
40   }
41   {
42     typedef std::deque<char> C;
43     const C::size_type max_dist =
44         static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
45     C c;
46     assert(c.max_size() <= max_dist);
47     assert(c.max_size() <= alloc_max_size(c.get_allocator()));
48     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
49   }
50 
51   return 0;
52 }
53