From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 20 Mar 2021 18:52:25 +0000 (-0700)
Subject: use a stronger type for root variable
X-Git-Tag: 2.47.1~24^2~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1110651b6dbc084de1dc5de53c0e532e95096fa5;p=graphviz

use a stronger type for root variable
---

diff --git a/lib/cgraph/write.c b/lib/cgraph/write.c
index 5735ee9a8..150ea824c 100644
--- a/lib/cgraph/write.c
+++ b/lib/cgraph/write.c
@@ -282,7 +282,7 @@ static int write_dicts(Agraph_t * g, iochan_t * ofile, int top)
 static int write_hdr(Agraph_t * g, iochan_t * ofile, int top)
 {
     char *name, *sep, *kind, *strict;
-    int root = 0;
+    bool root = false;
     bool hasName = true;
 
     Attrs_not_written_flag = AGATTRWF(g);
@@ -290,7 +290,7 @@ static int write_hdr(Agraph_t * g, iochan_t * ofile, int top)
     if (NOT(top) && agparent(g))
 	kind = "sub";
     else {
-	root = 1;
+	root = true;
 	if (g->desc.directed)
 	    kind = "di";
 	else