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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++98, c++03, c++11
// <set>
// class multiset
// template<typename K>
// pair<iterator,iterator> equal_range(const K& x); //
// C++14
// template<typename K>
// pair<const_iterator,const_iterator> equal_range(const K& x) const; //
// C++14
#include <cassert>
#include <set>
#include <utility>
#include "min_allocator.h"
#include "private_constructor.hpp"
#include "test_macros.h"
struct Comp {
using is_transparent = void;
bool operator()(const std::pair<int, int> &lhs,
const std::pair<int, int> &rhs) const {
return lhs < rhs;
}
bool operator()(const std::pair<int, int> &lhs, int rhs) const {
return lhs.first < rhs;
}
bool operator()(int lhs, const std::pair<int, int> &rhs) const {
return lhs < rhs.first;
}
};
int main() {
std::multiset<std::pair<int, int>, Comp> s{{2, 1}, {1, 1}, {1, 1}, {1, 1}, {2, 2}};
auto er = s.equal_range(1);
long nels = 0;
for (auto it = er.first; it != er.second; it++) {
assert(it->first == 1);
nels++;
}
assert(nels == 3);
}
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