From 551aae4b055ee7cd10cef3137cdca0a6208c1146 Mon Sep 17 00:00:00 2001
From: rlar <rlar>
Date: Thu, 5 May 2016 11:51:20 +0200
Subject: [PATCH] nupa_substitute(), drop ls

---
 src/frontend/numparam/xpressn.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/frontend/numparam/xpressn.c b/src/frontend/numparam/xpressn.c
index 01f5b8d3e..7b148ed72 100644
--- a/src/frontend/numparam/xpressn.c
+++ b/src/frontend/numparam/xpressn.c
@@ -1204,8 +1204,7 @@ nupa_substitute(dico_t *dico, char * const s, char *r)
     spice_dstring_init(&qstr);
     spice_dstring_init(&tstr);
     i = 0;
-    const int ls = (int) strlen(s);
-    const char * const s_end = s + ls;
+    const char * const s_end = strchr(s, '\0');
 
     while ((i < (s_end - s)) && !err) {
         i++;