From: erg <devnull@localhost>
Date: Thu, 21 May 2009 17:44:45 +0000 (+0000)
Subject: Fix incorrect error checking in fputs-like functions
X-Git-Tag: LAST_LIBGRAPH~32^2~2038
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c8510b5cdc32895d9cad10e2e09f5c242fb18104;p=graphviz

Fix incorrect error checking in fputs-like functions
---

diff --git a/lib/cgraph/write.c b/lib/cgraph/write.c
index 571553e66..e7cd66420 100644
--- a/lib/cgraph/write.c
+++ b/lib/cgraph/write.c
@@ -20,7 +20,7 @@
 
 #define EMPTY(s)		((s == 0) || (s)[0] == '\0')
 #define MAX(a,b)     ((a)>(b)?(a):(b))
-#define CHKRV(v)     {if ((v)) return EOF;}
+#define CHKRV(v)     {if ((v) == EOF) return EOF;}
 
 typedef void iochan_t;