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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
// <flat_multimap>
// template<class Allocator>
// explicit flat_multimap(const Allocator& a);
#include <cassert>
#include <deque>
#include <flat_map>
#include <functional>
#include <vector>
#include "test_macros.h"
#include "test_allocator.h"
#include "../../../test_compare.h"
template <template <class...> class KeyContainer, template <class...> class ValueContainer>
constexpr void test() {
using A = test_allocator<short>;
using M =
std::flat_multimap<int,
long,
std::less<int>,
KeyContainer<int, test_allocator<int>>,
ValueContainer<long, test_allocator<long>>>;
M m(A(0, 5));
assert(m.empty());
assert(m.begin() == m.end());
assert(m.keys().get_allocator().get_id() == 5);
assert(m.values().get_allocator().get_id() == 5);
}
constexpr bool test() {
{
// The constructors in this subclause shall not participate in overload
// resolution unless uses_allocator_v<key_container_type, Alloc> is true
// and uses_allocator_v<mapped_container_type, Alloc> is true.
using C = test_less<int>;
using A1 = test_allocator<int>;
using A2 = other_allocator<int>;
using V1 = std::vector<int, A1>;
using V2 = std::vector<int, A2>;
using M1 = std::flat_multimap<int, int, C, V1, V1>;
using M2 = std::flat_multimap<int, int, C, V1, V2>;
using M3 = std::flat_multimap<int, int, C, V2, V1>;
static_assert(std::is_constructible_v<M1, const A1&>);
static_assert(!std::is_constructible_v<M1, const A2&>);
static_assert(!std::is_constructible_v<M2, const A2&>);
static_assert(!std::is_constructible_v<M3, const A2&>);
}
{
// explicit
using M =
std::flat_multimap<int,
long,
std::less<int>,
std::vector<int, test_allocator<int>>,
std::vector<long, test_allocator<long>>>;
static_assert(std::is_constructible_v<M, test_allocator<int>>);
static_assert(!std::is_convertible_v<test_allocator<int>, M>);
}
test<std::vector, std::vector>();
#ifndef __cpp_lib_constexpr_deque
if (!TEST_IS_CONSTANT_EVALUATED)
#endif
{
test<std::deque, std::deque>();
}
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER >= 26
static_assert(test());
#endif
return 0;
}
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