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add hash function

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git-svn-id: svn://kolibrios.org@7916 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
pavelyakov 2020-05-14 12:36:18 +00:00
parent 9f5cc70596
commit a77ff41f5a
1 changed files with 27 additions and 0 deletions
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27
programs/cmm/lib/hash.h Executable file
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@ -0,0 +1,27 @@
/* hash function; Author PaulCodeman */
/*
String.prototype.hashCode = function() {
var hash = 0, i, chr;
if (this.length === 0) return hash;
for (i = 0; i < this.length; i++) {
chr = this.charCodeAt(i);
hash = ((hash << 5) - hash) + chr;
hash |= 0; // Convert to 32bit integer
}
return hash;
};
*/
inline dword hashCode(dword data, length)
{
dword hash = 0;
WHILE (length)
{
hash = hash << 5 - hash + DSBYTE[data];
data++;
length--;
}
RETURN hash;
}