94 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 insert(const value_type& v);16 17#include <flat_map>18#include <deque>19#include <cassert>20#include <functional>21 22#include "MinSequenceContainer.h"23#include "test_macros.h"24#include "../helpers.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 using M = std::flat_multimap<Key, Value, std::less<Key>, KeyContainer, ValueContainer>;32 using R = typename M::iterator;33 using VT = typename M::value_type;34 M m;35 36 const VT v1(2, 2.5);37 std::same_as<R> decltype(auto) r = m.insert(v1);38 assert(r == m.begin());39 assert(m.size() == 1);40 assert(r->first == 2);41 assert(r->second == 2.5);42 43 const VT v2(1, 1.5);44 r = m.insert(v2);45 assert(r == m.begin());46 assert(m.size() == 2);47 assert(r->first == 1);48 assert(r->second == 1.5);49 50 const VT v3(3, 3.5);51 r = m.insert(v3);52 assert(r == m.begin() + 2);53 assert(m.size() == 3);54 assert(r->first == 3);55 assert(r->second == 3.5);56 57 const VT v4(3, 4.5);58 r = m.insert(v4);59 assert(r == m.begin() + 3);60 assert(m.size() == 4);61 assert(r->first == 3);62 assert(r->second == 4.5);63}64 65constexpr bool test() {66 test<std::vector<int>, std::vector<double>>();67#ifndef __cpp_lib_constexpr_deque68 if (!TEST_IS_CONSTANT_EVALUATED)69#endif70 test<std::deque<int>, std::vector<double>>();71 test<MinSequenceContainer<int>, MinSequenceContainer<double>>();72 test<std::vector<int, min_allocator<int>>, std::vector<double, min_allocator<double>>>();73 74 if (!TEST_IS_CONSTANT_EVALUATED) {75 auto insert_func = [](auto& m, auto key_arg, auto value_arg) {76 using FlatMap = std::decay_t<decltype(m)>;77 using value_type = typename FlatMap::value_type;78 const value_type p(std::piecewise_construct, std::tuple(key_arg), std::tuple(value_arg));79 m.insert(p);80 };81 test_emplace_exception_guarantee(insert_func);82 }83 return true;84}85 86int main(int, char**) {87 test();88#if TEST_STD_VER >= 2689 static_assert(test());90#endif91 92 return 0;93}94