From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Fri, 23 Apr 2021 01:48:41 +0000 (-0700)
Subject: replace a use of snprintf pattern with gv_sprint
X-Git-Tag: 2.47.2~38^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6437e1535c7da1cb97fd215131c4bd92c60021fe;p=graphviz

replace a use of snprintf pattern with gv_sprint

This commit serves as an example of how to use the functionality added in the
previous commit. Related to #1950.
---

diff --git a/lib/sparse/DotIO.c b/lib/sparse/DotIO.c
index 36d454794..8bfe6d043 100644
--- a/lib/sparse/DotIO.c
+++ b/lib/sparse/DotIO.c
@@ -9,6 +9,7 @@
  *************************************************************************/
 
 #define STANDALONE
+#include <cgraph/sprint.h>
 #include <sparse/general.h>
 #include <sparse/DotIO.h>
 #include <sparse/clustering.h>
@@ -604,10 +605,7 @@ char *cat_string(char *s1, char *s2){
 }
 
 static char *cat_string3(char *s1, char *s2, char *s3, int id){
-  size_t len = (size_t)snprintf(NULL, 0, "%s|%s|%s|%d", s1, s2, s3, id) + 1;
-  char *s = malloc(sizeof(char) * len);
-  snprintf(s, len, "%s|%s|%s|%d", s1, s2, s3, id);
-  return s;
+  return gv_sprint_or_exit("%s|%s|%s|%d", s1, s2, s3, id);
 }