93 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// flat_map(const flat_map& m);14 15#include <cassert>16#include <deque>17#include <flat_map>18#include <vector>19 20#include "test_macros.h"21#include "../../../test_compare.h"22#include "test_allocator.h"23 24template <template <class...> class KeyContainer, template <class...> class ValueContainer>25constexpr void test() {26 {27 using C = test_less<int>;28 KeyContainer<int, test_allocator<int>> ks({1, 3, 5}, test_allocator<int>(6));29 ValueContainer<char, test_allocator<char>> vs({2, 2, 1}, test_allocator<char>(7));30 using M = std::flat_map<int, char, C, decltype(ks), decltype(vs)>;31 auto mo = M(ks, vs, C(5));32 auto m = mo;33 34 assert(m.key_comp() == C(5));35 assert(m.keys() == ks);36 assert(m.values() == vs);37 assert(m.keys().get_allocator() == test_allocator<int>(6));38 assert(m.values().get_allocator() == test_allocator<char>(7));39 40 // mo is unchanged41 assert(mo.key_comp() == C(5));42 assert(mo.keys() == ks);43 assert(mo.values() == vs);44 assert(mo.keys().get_allocator() == test_allocator<int>(6));45 assert(mo.values().get_allocator() == test_allocator<char>(7));46 }47 {48 using C = test_less<int>;49 using Ks = KeyContainer<int, other_allocator<int>>;50 using Vs = ValueContainer<char, other_allocator<char>>;51 auto ks = Ks({1, 3, 5}, other_allocator<int>(6));52 auto vs = Vs({2, 2, 1}, other_allocator<char>(7));53 using M = std::flat_map<int, char, C, Ks, Vs>;54 auto mo = M(Ks(ks, other_allocator<int>(6)), Vs(vs, other_allocator<int>(7)), C(5));55 auto m = mo;56 57 assert(m.key_comp() == C(5));58 assert(m.keys() == ks);59 assert(m.values() == vs);60 assert(m.keys().get_allocator() == other_allocator<int>(-2));61 assert(m.values().get_allocator() == other_allocator<char>(-2));62 63 // mo is unchanged64 assert(mo.key_comp() == C(5));65 assert(mo.keys() == ks);66 assert(mo.values() == vs);67 assert(mo.keys().get_allocator() == other_allocator<int>(6));68 assert(mo.values().get_allocator() == other_allocator<char>(7));69 }70}71 72constexpr bool test() {73 test<std::vector, std::vector>();74 75#ifndef __cpp_lib_constexpr_deque76 if (!TEST_IS_CONSTANT_EVALUATED)77#endif78 {79 test<std::deque, std::deque>();80 }81 82 return true;83}84 85int main(int, char**) {86 test();87#if TEST_STD_VER >= 2688 static_assert(test());89#endif90 91 return 0;92}93