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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
10
11// <flat_map>
12
13// class flat_multimap
14
15// size_type max_size() const noexcept;
16
17#include <cassert>
18#include <deque>
19#include <flat_map>
20#include <functional>
21#include <limits>
22#include <type_traits>
23#include <vector>
24
25#include "MinSequenceContainer.h"
26#include "test_allocator.h"
27#include "test_macros.h"
28
29int main(int, char**) {
30 {
31 using A1 = limited_allocator<int, 10>;
32 using A2 = limited_allocator<int, 20>;
33 using C = std::flat_multimap<int, int, std::less<int>, std::vector<int, A1>, std::vector<int, A2>>;
34 ASSERT_SAME_TYPE(C::difference_type, std::ptrdiff_t);
35 ASSERT_SAME_TYPE(C::size_type, std::size_t);
36 const C c;
37 ASSERT_NOEXCEPT(c.max_size());
38 ASSERT_SAME_TYPE(decltype(c.max_size()), C::size_type);
39 assert(c.max_size() <= 10);
40 LIBCPP_ASSERT(c.max_size() == 10);
41 }
42 {
43 using A1 = limited_allocator<int, 10>;
44 using A2 = limited_allocator<int, 20>;
45 using C = std::flat_multimap<int, int, std::less<int>, std::vector<int, A2>, std::vector<int, A1>>;
46 ASSERT_SAME_TYPE(C::difference_type, std::ptrdiff_t);
47 ASSERT_SAME_TYPE(C::size_type, std::size_t);
48 const C c;
49 ASSERT_NOEXCEPT(c.max_size());
50 ASSERT_SAME_TYPE(decltype(c.max_size()), C::size_type);
51 assert(c.max_size() <= 10);
52 LIBCPP_ASSERT(c.max_size() == 10);
53 }
54 {
55 using A = limited_allocator<int, (size_t)-1>;
56 using C = std::flat_multimap<int, int, std::less<int>, std::vector<int, A>, std::vector<int, A>>;
57 ASSERT_SAME_TYPE(C::difference_type, std::ptrdiff_t);
58 ASSERT_SAME_TYPE(C::size_type, std::size_t);
59 const C::size_type max_dist = static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
60 const C c;
61 ASSERT_NOEXCEPT(c.max_size());
62 ASSERT_SAME_TYPE(decltype(c.max_size()), C::size_type);
63 assert(c.max_size() <= max_dist);
64 LIBCPP_ASSERT(c.max_size() == max_dist);
65 }
66 {
67 typedef std::flat_multimap<char, char> C;
68 ASSERT_SAME_TYPE(C::difference_type, std::ptrdiff_t);
69 ASSERT_SAME_TYPE(C::size_type, std::size_t);
70 const C::size_type max_dist = static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
71 const C c;
72 ASSERT_NOEXCEPT(c.max_size());
73 ASSERT_SAME_TYPE(decltype(c.max_size()), C::size_type);
74 assert(c.max_size() <= max_dist);
75 assert(c.max_size() <= alloc_max_size(std::allocator<char>()));
76 }
77 return 0;
78}
79

source code of libcxx/test/std/containers/container.adaptors/flat.multimap/flat.multimap.capacity/max_size.pass.cpp