97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// <flat_set>
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// flat_multiset();
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#include <cassert>
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#include <deque>
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#include <flat_set>
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#include <functional>
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#include <type_traits>
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#include <vector>
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#include "min_allocator.h"
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#include "MoveOnly.h"
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#include "test_allocator.h"
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#include "test_macros.h"
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struct DefaultCtableComp {
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explicit DefaultCtableComp() { default_constructed_ = true; }
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bool operator()(int, int) const { return false; }
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bool default_constructed_ = false;
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};
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struct ThrowingCtorComp {
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ThrowingCtorComp() noexcept(false) {}
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bool operator()(const auto&, const auto&) const { return false; }
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};
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void test() {
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{
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std::flat_multiset<int> m;
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assert(m.empty());
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}
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{
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// explicit(false)
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std::flat_multiset<int> m = {};
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assert(m.empty());
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}
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{
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std::flat_multiset<int, DefaultCtableComp, std::deque<int, min_allocator<int>>> m;
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assert(m.empty());
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assert(m.begin() == m.end());
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assert(m.key_comp().default_constructed_);
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}
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{
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using A1 = explicit_allocator<int>;
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{
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std::flat_multiset<int, DefaultCtableComp, std::vector<int, A1>> m;
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assert(m.empty());
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assert(m.key_comp().default_constructed_);
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}
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{
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A1 a1;
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std::flat_multiset<int, DefaultCtableComp, std::vector<int, A1>> m(a1);
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assert(m.empty());
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assert(m.key_comp().default_constructed_);
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}
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}
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#if defined(_LIBCPP_VERSION)
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{
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using C = std::flat_multiset<MoveOnly>;
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static_assert(std::is_nothrow_default_constructible_v<C>);
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C c;
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}
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{
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using C = std::flat_multiset<MoveOnly, std::less<MoveOnly>, std::vector<MoveOnly, test_allocator<MoveOnly>>>;
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static_assert(std::is_nothrow_default_constructible_v<C>);
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C c;
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}
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#endif // _LIBCPP_VERSION
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{
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using C = std::flat_multiset<MoveOnly, std::less<MoveOnly>, std::vector<MoveOnly, other_allocator<MoveOnly>>>;
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static_assert(!std::is_nothrow_default_constructible_v<C>);
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C c;
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}
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{
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using C = std::flat_multiset<MoveOnly, ThrowingCtorComp>;
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static_assert(!std::is_nothrow_default_constructible_v<C>);
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C c;
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}
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}
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int main(int, char**) {
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test();
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return 0;
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}
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