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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_map>
// explicit flat_multimap(const key_compare& comp);
// template <class Alloc>
// flat_multimap(const key_compare& comp, const Alloc& a);
#include <deque>
#include <flat_map>
#include <functional>
#include <type_traits>
#include <vector>
#include "MinSequenceContainer.h"
#include "min_allocator.h"
#include "test_macros.h"
#include "../../../test_compare.h"
#include "test_allocator.h"
// explicit flat_multimap(const key_compare& comp);
template <class KeyContainer, class ValueContainer>
constexpr void test_compare() {
using Key = typename KeyContainer::value_type;
using Value = typename ValueContainer::value_type;
{
// The one-argument ctor is explicit.
using C = test_less<Key>;
static_assert(std::is_constructible_v<std::flat_multimap<Key, Value, C>, C>);
static_assert(!std::is_convertible_v<C, std::flat_multimap<Key, Value, C>>);
static_assert(std::is_constructible_v<std::flat_multimap<Key, Value>, std::less<Key>>);
static_assert(!std::is_convertible_v<std::less<Key>, std::flat_multimap<Key, Value>>);
}
{
using C = test_less<Key>;
auto m = std::flat_multimap<Key, Value, C>(C(3));
assert(m.empty());
assert(m.begin() == m.end());
assert(m.key_comp() == C(3));
}
}
// template <class Alloc>
// flat_multimap(const key_compare& comp, const Alloc& a);
template <template <class...> class KeyContainer, template <class...> class ValueContainer>
constexpr void test_compare_alloc() {
{
// If an allocator is given, it must be usable by both containers.
using A = test_allocator<int>;
using M = std::flat_multimap<int, int, std::less<>, KeyContainer<int>, ValueContainer<int, A>>;
static_assert(std::is_constructible_v<M, std::less<>>);
static_assert(!std::is_constructible_v<M, std::less<>, std::allocator<int>>);
static_assert(!std::is_constructible_v<M, std::less<>, A>);
}
{
using C = test_less<int>;
using A1 = test_allocator<int>;
using A2 = test_allocator<short>;
auto m = std::flat_multimap<int, short, C, KeyContainer<int, A1>, ValueContainer<short, A2>>(C(4), A1(5));
assert(m.empty());
assert(m.begin() == m.end());
assert(m.key_comp() == C(4));
assert(m.keys().get_allocator() == A1(5));
assert(m.values().get_allocator() == A2(5));
}
{
// explicit(false)
using C = test_less<int>;
using A1 = test_allocator<int>;
using A2 = test_allocator<short>;
std::flat_multimap<int, short, C, KeyContainer<int, A1>, ValueContainer<short, A2>> m = {C(4), A1(5)};
assert(m.empty());
assert(m.begin() == m.end());
assert(m.key_comp() == C(4));
assert(m.keys().get_allocator() == A1(5));
assert(m.values().get_allocator() == A2(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 M1 = std::flat_multimap<int, int, C, std::vector<int, A1>, std::vector<int, A1>>;
using M2 = std::flat_multimap<int, int, C, std::vector<int, A1>, std::vector<int, A2>>;
using M3 = std::flat_multimap<int, int, C, std::vector<int, A2>, std::vector<int, A1>>;
static_assert(std::is_constructible_v<M1, const C&, const A1&>);
static_assert(!std::is_constructible_v<M1, const C&, const A2&>);
static_assert(!std::is_constructible_v<M2, const C&, const A2&>);
static_assert(!std::is_constructible_v<M3, const C&, const A2&>);
}
test_compare<std::vector<int>, std::vector<int>>();
test_compare<std::vector<int>, std::vector<double>>();
test_compare<MinSequenceContainer<int>, MinSequenceContainer<double>>();
test_compare<std::vector<int, min_allocator<int>>, std::vector<double, min_allocator<double>>>();
test_compare<std::vector<int, min_allocator<int>>, std::vector<int, min_allocator<int>>>();
test_compare_alloc<std::vector, std::vector>();
#ifndef __cpp_lib_constexpr_deque
if (!TEST_IS_CONSTANT_EVALUATED)
#endif
{
test_compare<std::deque<int>, std::vector<double>>();
test_compare_alloc<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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