# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1244205229 0
# Node ID 41e7d9153967c99dc0a5030fbca2218119eec79f
# Parent  0070504324d8f215a82e16092fc57b94606a664f
change surplus for() to while()

diff --git a/src/core/ngx_string.c b/src/core/ngx_string.c
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -30,12 +30,15 @@ ngx_cpystrn(u_char *dst, u_char *src, si
         return dst;
     }
 
-    for ( /* void */ ; --n; dst++, src++) {
+    while (--n) {
         *dst = *src;
 
         if (*dst == '\0') {
             return dst;
         }
+
+        dst++;
+        src++;
     }
 
     *dst = '\0';