mirror of
https://github.com/Open-Shell/Open-Shell-Menu.git
synced 2026-04-12 01:47:24 +10:00
29 lines
854 B
C++
29 lines
854 B
C++
// Classic Shell (c) 2009-2016, Ivo Beltchev
|
|
// Confidential information of Ivo Beltchev. Not for disclosure or distribution without prior written consent from the author
|
|
|
|
#include <stdafx.h>
|
|
#include "FNVHash.h"
|
|
#include "StringUtils.h"
|
|
|
|
// FNV hash algorithm as described here: http://www.isthe.com/chongo/tech/comp/fnv/index.html
|
|
|
|
// Calculate FNV hash for a memory buffer
|
|
unsigned int CalcFNVHash( const void *buf, int len, unsigned int hash )
|
|
{
|
|
for (int i=0;i<len;i++)
|
|
hash=(hash^((const unsigned char*)buf)[i])*16777619;
|
|
return hash;
|
|
}
|
|
|
|
// Calculate FNV hash for a string
|
|
unsigned int CalcFNVHash( const char *text, unsigned int hash )
|
|
{
|
|
return CalcFNVHash(text,Strlen(text),hash);
|
|
}
|
|
|
|
// Calculate FNV hash for a wide string
|
|
unsigned int CalcFNVHash( const wchar_t *text, unsigned int hash )
|
|
{
|
|
return CalcFNVHash(text,Strlen(text)*2,hash);
|
|
}
|