From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Thu, 11 Nov 2021 01:27:19 +0000 (-0800)
Subject: gvwrite: use more conforming type when calling 'deflate'
X-Git-Tag: 2.50.0~30^2~12
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d09786f36295920d752e5ddf54d2dfe25d20fcf0;p=graphviz

gvwrite: use more conforming type when calling 'deflate'

This is what the zlib API documents `deflate` as returning. Squashes a
-Wsign-conversion warning.
---

diff --git a/lib/gvc/gvdevice.c b/lib/gvc/gvdevice.c
index 5fea75809..84a76187c 100644
--- a/lib/gvc/gvdevice.c
+++ b/lib/gvc/gvdevice.c
@@ -221,9 +221,9 @@ size_t gvwrite (GVJ_t * job, const char *s, size_t len)
 	while (z->avail_in) {
 	    z->next_out = df;
 	    z->avail_out = dfallocated;
-	    ret=deflate (z, Z_NO_FLUSH);
-	    if (ret != Z_OK) {
-                (job->common->errorfn) ("deflation problem %d\n", ret);
+	    int r = deflate(z, Z_NO_FLUSH);
+	    if (r != Z_OK) {
+                (job->common->errorfn) ("deflation problem %d\n", r);
 	        exit(1);
 	    }