From edaab9b4522e9dd8e2e4552cc9e96fca20937e0c Mon Sep 17 00:00:00 2001
From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Fri, 25 Feb 2022 07:59:14 -0800
Subject: [PATCH] agwrite: [nfc] separate assignment from conditional
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Squashes an MSVC “warning C4706: assignment within conditional expression”
warning.
---
 lib/cgraph/write.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/cgraph/write.c b/lib/cgraph/write.c
index e0e2cdda8..d7c46f9dd 100644
--- a/lib/cgraph/write.c
+++ b/lib/cgraph/write.c
@@ -657,7 +657,8 @@ int agwrite(Agraph_t * g, void *ofile)
     char* s;
     int len;
     Level = 0;			/* re-initialize tab level */
-    if ((s = agget(g, "linelength")) && isdigit((int)*s)) {
+    s = agget(g, "linelength");
+    if (s != NULL && isdigit((int)*s)) {
 	len = (int)strtol(s, (char **)NULL, 10);
 	if (len == 0 || len >= MIN_OUTPUTLINE)
 	    Max_outputline = len;
-- 
2.40.0