From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sun, 27 Sep 2020 20:52:10 +0000 (-0700)
Subject: add a return value to push() in libpack
X-Git-Tag: 2.46.0~20^2^2~54^2~3
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=db1fded7db35b55e19e1b1f5b22a25cd85743d0e;p=graphviz

add a return value to push() in libpack

Related to #1801.
---

diff --git a/lib/pack/ccomps.c b/lib/pack/ccomps.c
index 6c41aaee2..a8a1d3147 100644
--- a/lib/pack/ccomps.c
+++ b/lib/pack/ccomps.c
@@ -72,7 +72,7 @@ static void freeStk (stk_t* sp)
     }
 }
 
-static void push(stk_t* sp, Agnode_t * np)
+static int push(stk_t* sp, Agnode_t * np)
 {
     if (sp->curp == sp->curblk->endp) {
 	if (sp->curblk->next == NULL) {
@@ -96,6 +96,8 @@ static void push(stk_t* sp, Agnode_t * np)
     }
     MARK(sp,np);
     *sp->curp++ = np;
+
+    return 0;
 }
 
 static Agnode_t *pop(stk_t* sp)