functional.h File Reference

Functional utilities, primarily for hash computations. More...

#include <functional>

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Functions
template<typename... Types>
size_t	qb::hash_combine (const Types &...args)
	Combines the hash values of multiple objects into a single hash value.

Detailed Description

Functional utilities, primarily for hash computations.

This file provides utility functions for combining hash values of multiple objects, which is useful for creating composite hash functions for custom types or for use in containers like qb::unordered_map and qb::unordered_set when a custom hasher for a key type is needed.

Author

qb - C++ Actor Framework

Copyright

Copyright (c) 2011-2025 qb - isndev (cpp.actor) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.