//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <unordered_map>
// template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
// class Alloc = allocator<pair<const Key, T>>>
// class unordered_map
// explicit unordered_map(const allocator_type& __a);
#include <unordered_map>
#include <cassert>
#include "test_macros.h"
#include "../../../NotConstructible.h"
#include "../../../test_compare.h"
#include "../../../test_hash.h"
#include "test_allocator.h"
#include "min_allocator.h"
int main(int, char**)
{
{
typedef std::unordered_map<NotConstructible, NotConstructible,
test_hash<NotConstructible>,
test_equal_to<NotConstructible>,
test_allocator<std::pair<const NotConstructible,
NotConstructible> >
> C;
C c(test_allocator<std::pair<const NotConstructible, NotConstructible> >(10));
LIBCPP_ASSERT(c.bucket_count() == 0);
assert(c.hash_function() == test_hash<NotConstructible>());
assert(c.key_eq() == test_equal_to<NotConstructible>());
assert(c.get_allocator() ==
(test_allocator<std::pair<const NotConstructible, NotConstructible> >(10)));
assert(c.size() == 0);
assert(c.empty());
assert(std::distance(c.begin(), c.end()) == 0);
assert(c.load_factor() == 0);
assert(c.max_load_factor() == 1);
}
#if TEST_STD_VER >= 11
{
typedef std::unordered_map<NotConstructible, NotConstructible,
test_hash<NotConstructible>,
test_equal_to<NotConstructible>,
min_allocator<std::pair<const NotConstructible,
NotConstructible> >
> C;
C c(min_allocator<std::pair<const NotConstructible, NotConstructible> >{});
LIBCPP_ASSERT(c.bucket_count() == 0);
assert(c.hash_function() == test_hash<NotConstructible>());
assert(c.key_eq() == test_equal_to<NotConstructible>());
assert(c.get_allocator() ==
(min_allocator<std::pair<const NotConstructible, NotConstructible> >()));
assert(c.size() == 0);
assert(c.empty());
assert(std::distance(c.begin(), c.end()) == 0);
assert(c.load_factor() == 0);
assert(c.max_load_factor() == 1);
}
{
typedef explicit_allocator<std::pair<const NotConstructible, NotConstructible>> A;
typedef std::unordered_map<NotConstructible, NotConstructible,
test_hash<NotConstructible>,
test_equal_to<NotConstructible>,
A
> C;
C c(A{});
LIBCPP_ASSERT(c.bucket_count() == 0);
assert(c.hash_function() == test_hash<NotConstructible>());
assert(c.key_eq() == test_equal_to<NotConstructible>());
assert(c.get_allocator() == A{});
assert(c.size() == 0);
assert(c.empty());
assert(std::distance(c.begin(), c.end()) == 0);
assert(c.load_factor() == 0);
assert(c.max_load_factor() == 1);
}
#if TEST_STD_VER > 11
{
typedef NotConstructible T;
typedef test_allocator<std::pair<const T, T>> A;
typedef test_hash<T> HF;
typedef test_equal_to<T> Comp;
typedef std::unordered_map<T, T, HF, Comp, A> C;
A a(10);
C c(2, a);
LIBCPP_ASSERT(c.bucket_count() == 2);
assert(c.hash_function() == HF());
assert(c.key_eq() == Comp());
assert(c.get_allocator() == a);
assert(c.size() == 0);
assert(c.empty());
assert(std::distance(c.begin(), c.end()) == 0);
assert(c.load_factor() == 0);
assert(c.max_load_factor() == 1);
}
{
typedef NotConstructible T;
typedef test_allocator<std::pair<const T, T>> A;
typedef test_hash<T> HF;
typedef test_equal_to<T> Comp;
typedef std::unordered_map<T, T, HF, Comp, A> C;
A a(10);
HF hf(12);
C c(2, hf, a);
LIBCPP_ASSERT(c.bucket_count() == 2);
assert(c.hash_function() == hf);
assert(!(c.hash_function() == HF()));
assert(c.key_eq() == Comp());
assert(c.get_allocator() == a);
assert(c.size() == 0);
assert(c.empty());
assert(std::distance(c.begin(), c.end()) == 0);
assert(c.load_factor() == 0);
assert(c.max_load_factor() == 1);
}
#endif
#endif
return 0;
}