KiCad PCB EDA Suite
hash.h
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23
24#pragma once
25#ifndef LIBS_KIMATH_INCLUDE_HASH_H_
26#define LIBS_KIMATH_INCLUDE_HASH_H_
27
28#include <functional>
29
34static inline void hash_combine( std::size_t &seed ) {}
35
43template< typename T, typename ... Types >
44static inline void hash_combine( std::size_t &seed, const T &val, const Types &... args )
45{
46 seed ^= std::hash<T>()( val ) + 0x9e3779b9 + ( seed << 6 ) + ( seed >> 2 );
47 hash_combine( seed, args... );
48}
49
50template <typename... Types>
51static inline std::size_t hash_val( const Types &... args )
52{
53 std::size_t seed = 0xa82de1c0;
54 hash_combine( seed, args... );
55 return seed;
56}
57
58#endif /* LIBS_KIMATH_INCLUDE_HASH_H_ */
static std::size_t hash_val(const Types &... args)
Definition: hash.h:51
static void hash_combine(std::size_t &seed)
This is a dummy function to take the final case of hash_combine below.
Definition: hash.h:34