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/**
* Copyright (C) 2022-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <algorithm>
#include <set>
#include "mongo/bson/util/builder_fwd.h"
namespace mongo::set_util {
template <typename T, typename Comparator>
std::set<T, Comparator> setUnion(const std::set<T, Comparator>& set1,
const std::set<T, Comparator>& set2) {
std::set<T, Comparator> out;
std::set_union(
set1.begin(), set1.end(), set2.begin(), set2.end(), std::inserter(out, out.begin()));
return out;
}
template <typename T, typename Comparator>
std::string setToString(const std::set<T, Comparator>& set) {
StackStringBuilder sb;
sb << "{";
for (auto it = set.begin(); it != set.end(); ++it) {
sb << *it;
if (std::next(it) != set.end())
sb << ",";
}
sb << "}";
return sb.str();
}
} // namespace mongo::set_util
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