From: Erwin Janssen <erwinjanssen@outlook.com>
Date: Thu, 1 Sep 2016 12:55:19 +0000 (+0200)
Subject: Resolve three Wsign-conversion in agxbuf.c
X-Git-Tag: untagged-897b348e31e4e52e8698~1^2~10
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=afd3d3da0ad9dab8194dafa41d26387efb219e04;p=graphviz

Resolve three Wsign-conversion in agxbuf.c

These three warnings could be resolved without making functional changes in the code. Also initialized the three local variables in this function to zero.
---

diff --git a/lib/cgraph/agxbuf.c b/lib/cgraph/agxbuf.c
index 3b2bd3a7c..a2a71df01 100644
--- a/lib/cgraph/agxbuf.c
+++ b/lib/cgraph/agxbuf.c
@@ -43,16 +43,16 @@ void agxbinit(agxbuf * xb, unsigned int hint, unsigned char *init)
  */
 int agxbmore(agxbuf * xb, size_t ssz)
 {
-    size_t cnt;			/* current no. of characters in buffer */
-    size_t size;		/* current buffer size */
-    size_t nsize;		/* new buffer size */
-    unsigned char *nbuf;	/* new buffer */
+    size_t cnt = 0;         /* current no. of characters in buffer */
+    size_t size = 0;        /* current buffer size */
+    size_t nsize = 0;       /* new buffer size */
+    unsigned char *nbuf;    /* new buffer */
 
-    size = xb->eptr - xb->buf;
+    size = (size_t) (xb->eptr - xb->buf);
     nsize = 2 * size;
-    if (size + (int)ssz > nsize)
+    if (size + ssz > nsize)
 	nsize = size + ssz;
-    cnt = xb->ptr - xb->buf;
+    cnt = (size_t) (xb->ptr - xb->buf);
     if (xb->dyna) {
 	nbuf = realloc(xb->buf, nsize);
     } else {