69 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// iterator find(const key_type& k);16// const_iterator find(const key_type& k) const;17 18#include <cassert>19#include <deque>20#include <flat_map>21#include <functional>22#include <string>23#include <utility>24 25#include "MinSequenceContainer.h"26#include "test_macros.h"27#include "min_allocator.h"28 29template <class KeyContainer, class ValueContainer>30constexpr void test() {31 using Key = typename KeyContainer::value_type;32 using Value = typename ValueContainer::value_type;33 using M = std::flat_multimap<Key, Value, std::less<Key>, KeyContainer, ValueContainer>;34 35 M m = {{1, 'a'}, {1, 'a'}, {1, 'b'}, {2, 'c'}, {2, 'b'}, {4, 'a'}, {4, 'd'}, {5, 'e'}, {8, 'a'}, {8, 'h'}};36 ASSERT_SAME_TYPE(decltype(m.find(0)), typename M::iterator);37 ASSERT_SAME_TYPE(decltype(std::as_const(m).find(0)), typename M::const_iterator);38 assert(m.find(0) == m.end());39 assert(m.find(1) == m.begin());40 assert(m.find(2) == m.begin() + 3);41 assert(m.find(3) == m.end());42 assert(m.find(4) == m.begin() + 5);43 assert(m.find(5) == m.begin() + 7);44 assert(m.find(6) == m.end());45 assert(m.find(7) == m.end());46 assert(std::as_const(m).find(8) == m.begin() + 8);47 assert(std::as_const(m).find(9) == m.end());48}49 50constexpr bool test() {51 test<std::vector<int>, std::vector<char>>();52#ifndef __cpp_lib_constexpr_deque53 if (!TEST_IS_CONSTANT_EVALUATED)54#endif55 test<std::deque<int>, std::vector<char>>();56 test<MinSequenceContainer<int>, MinSequenceContainer<char>>();57 test<std::vector<int, min_allocator<int>>, std::vector<char, min_allocator<char>>>();58 return true;59}60 61int main(int, char**) {62 test();63#if TEST_STD_VER >= 2664 static_assert(test());65#endif66 67 return 0;68}69