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
38 using P = std::pair<int, long>;
39 using PC = std::pair<const int, long>;
40 using PCC = std::pair<const int, const long>;
41
main(int,char **)42 int main(int, char**)
43 {
44 {
45 const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
46 std::multimap m(std::begin(arr), std::end(arr));
47
48 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long>);
49 const PCC expected_m[] = { {1,1L}, {1,1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
50 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
51 }
52
53 {
54 const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
55 std::multimap m(std::begin(arr), std::end(arr), std::greater<int>());
56
57 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long, std::greater<int>>);
58 const PCC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
59 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
60 }
61
62 {
63 const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
64 std::multimap m(std::begin(arr), std::end(arr), std::greater<int>(), test_allocator<PCC>(0, 42));
65
66 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long, std::greater<int>, test_allocator<PCC>>);
67 const PCC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
68 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
69 assert(m.get_allocator().get_id() == 42);
70 }
71
72 {
73 std::multimap m{ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} };
74
75 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long>);
76 const PC expected_m[] = { {1,1L}, {1,1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
77 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
78 }
79
80 {
81 std::multimap m({ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} }, std::greater<int>());
82
83 ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::greater<int>>);
84 const PC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
85 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
86 }
87
88 {
89 std::multimap m({ 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