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Function hash_value

boost::hash_value — Implementation of a hash function for integers.


std::size_t hash_value(int val);
std::size_t hash_value(unsigned int val);
std::size_t hash_value(long val);
std::size_t hash_value(unsigned long val);


Generally shouldn't be called directly by users, instead they should use boost::hash, boost::hash_range or boost::hash_combine which call hash_value without namespace qualification so that overloads for custom types are found via ADL.

Notes: Overloads for other types supplied in other headers.

This is an extension to TR1

Returns: val

Copyright 2005 Daniel James