84 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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++2010 11// <flat_map>12 13// class flat_multimap14 15// size_type count(const key_type& x) const;16 17#include <cassert>18#include <deque>19#include <flat_map>20#include <functional>21#include <utility>22 23#include "MinSequenceContainer.h"24#include "test_macros.h"25#include "min_allocator.h"26 27template <class KeyContainer, class ValueContainer>28constexpr void test() {29 using Key = typename KeyContainer::value_type;30 using Value = typename ValueContainer::value_type;31 32 {33 using M = std::flat_multimap<Key, Value, std::less<>, KeyContainer, ValueContainer>;34 M m = {{1, 1}, {2, 2}, {2, 2}, {4, 4}, {4, 1}, {4, 3}, {4, 4}, {5, 5}, {8, 8}};35 ASSERT_SAME_TYPE(decltype(m.count(0)), size_t);36 assert(m.count(0) == 0);37 assert(m.count(1) == 1);38 assert(m.count(2) == 2);39 assert(m.count(3) == 0);40 assert(m.count(4) == 4);41 assert(m.count(5) == 1);42 assert(m.count(6) == 0);43 assert(m.count(7) == 0);44 assert(std::as_const(m).count(8) == 1);45 assert(std::as_const(m).count(9) == 0);46 }47 {48 using M = std::flat_multimap<Key, Value, std::greater<int>, KeyContainer, ValueContainer>;49 M m = {{1, 0}, {2, 0}, {4, 0}, {1, 0}, {1, 2}, {8, 1}, {5, 0}, {8, 0}};50 ASSERT_SAME_TYPE(decltype(m.count(0)), size_t);51 assert(m.count(0) == 0);52 assert(m.count(1) == 3);53 assert(m.count(2) == 1);54 assert(m.count(3) == 0);55 assert(m.count(4) == 1);56 assert(m.count(5) == 1);57 assert(m.count(6) == 0);58 assert(m.count(7) == 0);59 assert(std::as_const(m).count(8) == 2);60 assert(std::as_const(m).count(9) == 0);61 }62}63 64constexpr bool test() {65 test<std::vector<int>, std::vector<int>>();66#ifndef __cpp_lib_constexpr_deque67 if (!TEST_IS_CONSTANT_EVALUATED)68#endif69 test<std::deque<int>, std::vector<int>>();70 test<MinSequenceContainer<int>, MinSequenceContainer<int>>();71 test<std::vector<int, min_allocator<int>>, std::vector<int, min_allocator<int>>>();72 73 return true;74}75 76int main(int, char**) {77 test();78#if TEST_STD_VER >= 2679 static_assert(test());80#endif81 82 return 0;83}84