From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 29 May 2021 18:03:13 +0000 (-0700)
Subject: use a C99 bool for ingraph’s heap flag
X-Git-Tag: 2.47.3~16^2~3
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9ab4006fdef926f09397b195a59ade091f93ae66;p=graphviz

use a C99 bool for ingraph’s heap flag

The semantics of this flag were already a boolean value, so we can use the type
system to more obviously indicate this.
---

diff --git a/lib/ingraphs/ingraphs.c b/lib/ingraphs/ingraphs.c
index f10ae53e2..10b0ad15d 100644
--- a/lib/ingraphs/ingraphs.c
+++ b/lib/ingraphs/ingraphs.c
@@ -13,6 +13,7 @@
  * Written by Emden Gansner
  */
 
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 
@@ -95,9 +96,9 @@ new_ing(ingraph_state * sp, char **files, Agraph_t** graphs, ingdisc * disc)
 	    fprintf(stderr, "ingraphs: out of memory\n");
 	    return 0;
 	}
-	sp->heap = 1;
+	sp->heap = true;
     } else
-	sp->heap = 0;
+	sp->heap = false;
     if (graphs) {
 	sp->ingraphs = 1;
 	sp->u.Graphs = graphs;
diff --git a/lib/ingraphs/ingraphs.h b/lib/ingraphs/ingraphs.h
index 22e48186a..4591db124 100644
--- a/lib/ingraphs/ingraphs.h
+++ b/lib/ingraphs/ingraphs.h
@@ -15,6 +15,7 @@
  * of Agraph_t.
  */
 
+#include <stdbool.h>
 #include <stdio.h>
 
 #ifdef __cplusplus
@@ -39,7 +40,7 @@ extern "C" {
 	int ingraphs;
 	void *fp;
 	ingdisc *fns;
-	char heap;
+	bool heap;
 	unsigned errors;
     } ingraph_state;