From 251cda4941f17a36dc18b7a65be76726bacd4f23 Mon Sep 17 00:00:00 2001
From: Hartmut Holzgraefe <hholzgra@php.net>
Date: Tue, 23 May 2000 20:07:32 +0000
Subject: [PATCH] a little less optimized, but no dirty tricks anymore

---
 ext/standard/levenshtein.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/ext/standard/levenshtein.c b/ext/standard/levenshtein.c
index 4227cf05f4..6809ef5752 100644
--- a/ext/standard/levenshtein.c
+++ b/ext/standard/levenshtein.c
@@ -25,10 +25,11 @@
 
 static int calc_levdist(const char *s1, const char *s2) /* faster, but obfuscated */
 {
-	register char *p1,*p2;
+	register char *p1,*p2; 
 	register int i,j,n;
 	int l1=0,l2=0;
 	char r[512];
+	const char *tmp;
 
 	/* skip equal start sequence, if any */
 	while(*s1==*s2) {
@@ -54,22 +55,15 @@ static int calc_levdist(const char *s1, const char *s2) /* faster, but obfuscate
 	/* reset pointers, adjust length */
 	s1-=l1++;
 	s2-=l2++;
+	
 
 	/* possible dist to great? */
  	if(abs(l1-l2)>=255) return -1;
 
 	/* swap if l2 longer than l1 */
 	if(l1<l2) {
-		const char *s3;
-		int l3;
-		
-		s3 = s1;
-		s1 = s2;
-		s2 = s3;
-
-		l3 = l1;
-		l1 = l2;
-		l2 = l3;
+		tmp=s1; s1=s2; s2=tmp;
+		l1 ^= l2; l2 ^= l1; l1 ^= l2;
 	}
 
 	
-- 
2.50.1