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Akdeniz/hashcombine.hpp

Created September 18, 2017 13:35
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hash combine template function
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hashcombine.hpp
// taken from http://www.boost.org/doc/libs/1_55_0/doc/html/hash/reference.html#boost.hash_combine
#include <functional>
template <class T>
inline void hash_combine( std::size_t& seed, const T& v )
{
std::hash<T> hasher;
seed ^= hasher( v ) + 0x9e3779b9 + ( seed << 6 ) + ( seed >> 2 );
}
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