From e98bfc720f29c0cbe97b36f5bf86c3fb19b80702 Mon Sep 17 00:00:00 2001
From: rlar <rlar>
Date: Sat, 7 Nov 2015 20:02:52 +0100
Subject: [PATCH] frontend/define.c, ntharg(), #6/15 rewrite while() -->
 for(;;)

---
 src/frontend/define.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/frontend/define.c b/src/frontend/define.c
index fbb6c3d1d..2591753c3 100644
--- a/src/frontend/define.c
+++ b/src/frontend/define.c
@@ -408,7 +408,10 @@ static struct pnode *
 ntharg(int num, struct pnode *args)
 {
     // fact: num >= 1 for all known invocations of ntharg()
-        while (--num > 0) {
+        for (;;) {
+            if (--num <= 0) {
+                break;
+            }
             if (args && args->pn_op && (args->pn_op->op_num != PT_OP_COMMA)) {
                 if (num <= 1)
                     break;