108 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <map>10// UNSUPPORTED: c++03, c++11, c++1411 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::equal29#include <cassert>30#include <climits> // INT_MAX31#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::map m(std::begin(arr), std::end(arr));46 47 ASSERT_SAME_TYPE(decltype(m), std::map<int, const long>);48 const PCC expected_m[] = {{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::map m(std::begin(arr), std::end(arr), std::greater<int>());55 56 ASSERT_SAME_TYPE(decltype(m), std::map<int, const long, std::greater<int>>);57 const PCC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {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::map m(std::begin(arr), std::end(arr), std::greater<int>(), test_allocator<PCC>(0, 42));64 65 ASSERT_SAME_TYPE(decltype(m), std::map<int, const long, std::greater<int>, test_allocator<PCC>>);66 const PCC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {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::map 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::map<int, long>);75 const PC expected_m[] = {{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::map 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::map<int, long, std::greater<int>>);83 const PC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {1, 1L}};84 assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));85 }86 87 {88 std::map 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::map<int, long, std::greater<int>, test_allocator<PC>>);92 const PC expected_m[] = {{INT_MAX, 1L}, {3, 1L}, {2, 2L}, {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::map 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::map<int, long, std::less<int>, test_allocator<PC>>);101 const PC expected_m[] = {{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