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new hash function.

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This commit is contained in:
Roberto Ierusalimschy 1998-07-27 14:06:17 -03:00
parent e1a127245d
commit 894a264671
1 changed files with 3 additions and 3 deletions
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6
lstring.c
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@ -1,5 +1,5 @@
/*
** $Id: lstring.c,v 1.12 1998/03/06 16:54:42 roberto Exp roberto $
** $Id: lstring.c,v 1.13 1998/06/19 16:14:09 roberto Exp roberto $
** String table (keeps all strings handled by Lua)
** See Copyright Notice in lua.h
*/
@ -39,9 +39,9 @@ void luaS_init (void)
static unsigned long hash_s (char *s, long l)
{
unsigned long h = 0;
unsigned long h = 0; /* seed */
while (l--)
h = ((h<<5)-h)^(unsigned char)*(s++);
h = h ^ ((h<<5)+(h>>2)+(unsigned char)*(s++));
return h;
}