llvm-project
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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// map(InputIterator, InputIterator,
16// Compare = Compare(), Allocator = Allocator())
17// -> map<iter-value-type<InputIterator>, Compare, Allocator>;
18// template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
19// map(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
20// -> map<Key, Compare, Allocator>;
21// template<class InputIterator, class Allocator>
22// map(InputIterator, InputIterator, Allocator)
23// -> map<iter-value-type<InputIterator>, less<iter-value-type<InputIterator>>, Allocator>;
24// template<class Key, class Allocator>
25// map(initializer_list<Key>, Allocator)
26// -> map<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{
45const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
46std::map m(std::begin(arr), std::end(arr));
47
48ASSERT_SAME_TYPE(decltype(m), std::map<int, const long>);
49const PCC expected_m[] = { {1,1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
50assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
51}
52
53{
54const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
55std::map m(std::begin(arr), std::end(arr), std::greater<int>());
56
57ASSERT_SAME_TYPE(decltype(m), std::map<int, const long, std::greater<int>>);
58const PCC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1, 1L} };
59assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
60}
61
62{
63const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
64std::map m(std::begin(arr), std::end(arr), std::greater<int>(), test_allocator<PCC>(0, 42));
65
66ASSERT_SAME_TYPE(decltype(m), std::map<int, const long, std::greater<int>, test_allocator<PCC>>);
67const PCC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1, 1L} };
68assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
69assert(m.get_allocator().get_id() == 42);
70}
71
72{
73std::map m{ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} };
74
75ASSERT_SAME_TYPE(decltype(m), std::map<int, long>);
76const PC expected_m[] = { {1, 1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
77assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
78}
79
80{
81std::map m({ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} }, std::greater<int>());
82
83ASSERT_SAME_TYPE(decltype(m), std::map<int, long, std::greater<int>>);
84const PC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1, 1L} };
85assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
86}
87
88{
89std::map 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
91ASSERT_SAME_TYPE(decltype(m), std::map<int, long, std::greater<int>, test_allocator<PC>>);
92const PC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1, 1L} };
93assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
94assert(m.get_allocator().get_id() == 43);
95}
96
97{
98std::map m({ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} }, test_allocator<PC>(0, 45));
99
100ASSERT_SAME_TYPE(decltype(m), std::map<int, long, std::less<int>, test_allocator<PC>>);
101const PC expected_m[] = { {1, 1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
102assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
103assert(m.get_allocator().get_id() == 45);
104}
105
106return 0;
107}
108