commit 894a2646719006489800ea68b0515ab956f8aa62
parent e1a127245d3d977945819240a2df90ceb8ae516f
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 27 Jul 1998 14:05:56 -0300
new hash function.
Diffstat:
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/lstring.c b/lstring.c
@@ -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;
}