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// size_type count(const key_type& x) const;14 15#include <cassert>16#include <deque>17#include <flat_map>18#include <functional>19#include <utility>20 21#include "MinSequenceContainer.h"22#include "test_macros.h"23#include "min_allocator.h"24 25template <class KeyContainer, class ValueContainer>26constexpr void test() {27 using Key = typename KeyContainer::value_type;28 using Value = typename ValueContainer::value_type;29 30 {31 using M = std::flat_map<Key, Value, std::less<>, KeyContainer, ValueContainer>;32 M m = {{1, 1}, {2, 2}, {4, 4}, {5, 5}, {8, 8}};33 ASSERT_SAME_TYPE(decltype(m.count(0)), size_t);34 assert(m.count(0) == 0);35 assert(m.count(1) == 1);36 assert(m.count(2) == 1);37 assert(m.count(3) == 0);38 assert(m.count(4) == 1);39 assert(m.count(5) == 1);40 assert(m.count(6) == 0);41 assert(m.count(7) == 0);42 assert(std::as_const(m).count(8) == 1);43 assert(std::as_const(m).count(9) == 0);44 }45 {46 using M = std::flat_map<Key, Value, std::greater<int>, KeyContainer, ValueContainer>;47 M m = {{1, 0}, {2, 0}, {4, 0}, {5, 0}, {8, 0}};48 ASSERT_SAME_TYPE(decltype(m.count(0)), size_t);49 assert(m.count(0) == 0);50 assert(m.count(1) == 1);51 assert(m.count(2) == 1);52 assert(m.count(3) == 0);53 assert(m.count(4) == 1);54 assert(m.count(5) == 1);55 assert(m.count(6) == 0);56 assert(m.count(7) == 0);57 assert(std::as_const(m).count(8) == 1);58 assert(std::as_const(m).count(9) == 0);59 }60}61 62constexpr bool test() {63 test<std::vector<int>, std::vector<int>>();64#ifndef __cpp_lib_constexpr_deque65 if (!TEST_IS_CONSTANT_EVALUATED)66#endif67 {68 test<std::deque<int>, std::vector<int>>();69 }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