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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
//
//===----------------------------------------------------------------------===//
// <unordered_set>
// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
// class Alloc = allocator<Value>>
// class unordered_set
// pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
#include <unordered_set>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
int main(int, char**)
{
{
typedef std::unordered_set<int> C;
typedef C::const_iterator I;
typedef int P;
P a[] =
{
P(10),
P(20),
P(30),
P(40),
P(50),
P(50),
P(50),
P(60),
P(70),
P(80)
};
const C c(std::begin(a), std::end(a));
std::pair<I, I> r = c.equal_range(30);
assert(std::distance(r.first, r.second) == 1);
assert(*r.first == 30);
r = c.equal_range(5);
assert(std::distance(r.first, r.second) == 0);
r = c.equal_range(50);
assert(std::distance(r.first, r.second) == 1);
assert(*r.first == 50);
}
#if TEST_STD_VER >= 11
{
typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
typedef C::const_iterator I;
typedef int P;
P a[] =
{
P(10),
P(20),
P(30),
P(40),
P(50),
P(50),
P(50),
P(60),
P(70),
P(80)
};
const C c(std::begin(a), std::end(a));
std::pair<I, I> r = c.equal_range(30);
assert(std::distance(r.first, r.second) == 1);
assert(*r.first == 30);
r = c.equal_range(5);
assert(std::distance(r.first, r.second) == 0);
r = c.equal_range(50);
assert(std::distance(r.first, r.second) == 1);
assert(*r.first == 50);
}
#endif
return 0;
}
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