26 lines
503 B
C++
26 lines
503 B
C++
/*
|
|
Copyright (c) 2013 Microsoft Corporation. All rights reserved.
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
|
|
|
Author: Leonardo de Moura
|
|
*/
|
|
#pragma once
|
|
#include "runtime/debug.h"
|
|
#include "runtime/int.h"
|
|
|
|
namespace lean {
|
|
|
|
uint64 hash_str(size_t len, unsigned char const * str, uint64 init_value);
|
|
|
|
inline uint64 hash(uint64 h, uint64 k) {
|
|
uint64 m = 0xc6a4a7935bd1e995;
|
|
uint64 r = 47;
|
|
k *= m;
|
|
k ^= k >> r;
|
|
k ^= m;
|
|
h ^= k;
|
|
h *= m;
|
|
return h;
|
|
}
|
|
|
|
}
|