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// UNSUPPORTED: c++03, c++11, c++14
11
12// template<class InputIterator,
13// class Compare = less<iter-value-type<InputIterator>>,
14// class Allocator = allocator<iter-value-type<InputIterator>>>
15// multimap(InputIterator, InputIterator,
16// Compare = Compare(), Allocator = Allocator())
17// -> multimap<iter-value-type<InputIterator>, Compare, Allocator>;
18// template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
19// multimap(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
20// -> multimap<Key, Compare, Allocator>;
21// template<class InputIterator, class Allocator>
22// multimap(InputIterator, InputIterator, Allocator)
23// -> multimap<iter-value-type<InputIterator>, less<iter-value-type<InputIterator>>, Allocator>;
24// template<class Key, class Allocator>
25// multimap(initializer_list<Key>, Allocator)
26// -> multimap<Key, less<Key>, Allocator>;
27
28#include <algorithm> // std::equal
29#include <cassert>
30#include <climits> // INT_MAX
31#include <functional>
32#include <iterator>
33#include <map>
34#include <type_traits>
35
36#include "test_allocator.h"
37
38using P = std::pair<int, long>;
39using PC = std::pair<const int, long>;
40using PCC = std::pair<const int, const long>;
41
42int main(int, char**) {
43 {
44 const PCC arr[] = {{1, 1L}, {2, 2L}, {1, 1L}, {INT_MAX, 1L}, {3, 1L}};
45 std::multimap m(std::begin(arr: arr), std::end(arr: arr));
46
47 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long>);
48 const PCC expected_m[] = {{1, 1L}, {1, 1L}, {2, 2L}, {3, 1L}, {INT_MAX, 1L}};
49 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
50 }
51
52 {
53 const PCC arr[] = {{1, 1L}, {2, 2L}, {1, 1L}, {INT_MAX, 1L}, {3, 1L}};
54 std::multimap m(std::begin(arr: arr), std::end(arr: arr), std::greater<int>());
55
56 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long, std::greater<int>>);
57 const PCC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {1, 1L}, {1, 1L}};
58 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
59 }
60
61 {
62 const PCC arr[] = {{1, 1L}, {2, 2L}, {1, 1L}, {INT_MAX, 1L}, {3, 1L}};
63 std::multimap m(std::begin(arr: arr), std::end(arr: arr), std::greater<int>(), test_allocator<PCC>(0, 42));
64
65 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long, std::greater<int>, test_allocator<PCC>>);
66 const PCC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {1, 1L}, {1, 1L}};
67 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
68 assert(m.get_allocator().get_id() == 42);
69 }
70
71 {
72 std::multimap m{PC{1, 1L}, PC{2, 2L}, PC{1, 1L}, PC{INT_MAX, 1L}, PC{3, 1L}};
73
74 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long>);
75 const PC expected_m[] = {{1, 1L}, {1, 1L}, {2, 2L}, {3, 1L}, {INT_MAX, 1L}};
76 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
77 }
78
79 {
80 std::multimap m({PC{1, 1L}, PC{2, 2L}, PC{1, 1L}, PC{INT_MAX, 1L}, PC{3, 1L}}, std::greater<int>());
81
82 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::greater<int>>);
83 const PC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {1, 1L}, {1, 1L}};
84 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
85 }
86
87 {
88 std::multimap m(
89 {PC{1, 1L}, PC{2, 2L}, PC{1, 1L}, PC{INT_MAX, 1L}, PC{3, 1L}}, std::greater<int>(), test_allocator<PC>(0, 43));
90
91 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::greater<int>, test_allocator<PC>>);
92 const PC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {1, 1L}, {1, 1L}};
93 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
94 assert(m.get_allocator().get_id() == 43);
95 }
96
97 {
98 std::multimap m({PC{1, 1L}, PC{2, 2L}, PC{1, 1L}, PC{INT_MAX, 1L}, PC{3, 1L}}, test_allocator<PC>(0, 45));
99
100 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::less<int>, test_allocator<PC>>);
101 const PC expected_m[] = {{1, 1L}, {1, 1L}, {2, 2L}, {3, 1L}, {INT_MAX, 1L}};
102 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
103 assert(m.get_allocator().get_id() == 45);
104 }
105
106 return 0;
107}
108

source code of libcxx/test/std/containers/associative/multimap/multimap.cons/deduct_const.pass.cpp