From: ellson <devnull@localhost>
Date: Fri, 1 Aug 2008 19:52:09 +0000 (+0000)
Subject: deal with return value from fread() to clean up compiler warnings.
X-Git-Tag: LAST_LIBGRAPH~32^2~3713
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e0e36fffbfe8ae687583eb260ec2cb76141012a2;p=graphviz

deal with return value from fread() to clean up compiler warnings.
---

diff --git a/lib/sparse/SparseMatrix.c b/lib/sparse/SparseMatrix.c
index 2dc2e2275..d53f1362e 100644
--- a/lib/sparse/SparseMatrix.c
+++ b/lib/sparse/SparseMatrix.c
@@ -13,14 +13,16 @@
 *              AT&T Research, Florham Park NJ             *
 **********************************************************/
 #include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+
 #include "SparseMatrix.h"
 
 #include "logic.h"
-#include "math.h"
-#include "string.h"
 #include "memory.h"
 #include "arith.h"
-#include "assert.h"
+
 #define MALLOC gmalloc
 #define REALLOC grealloc
 #define FREE free
@@ -605,19 +607,20 @@ void SparseMatrix_export_binary(char *name, SparseMatrix A, int *flag){
 
 SparseMatrix SparseMatrix_import_binary(char *name){
   SparseMatrix A = NULL;
-  int m, n, nz, nzmax, type, format, property;
+  int m, n, nz, nzmax, type, format, property, rc;
   FILE *f;
 
   f = fopen(name, "rb");
 
   if (!f) return NULL;
-  fread(&m, sizeof(int), 1, f);
-  fread(&n, sizeof(int), 1, f);
-  fread(&nz, sizeof(int), 1, f);
-  fread(&nzmax, sizeof(int), 1, f);
-  fread(&type, sizeof(int), 1, f);
-  fread(&format, sizeof(int), 1, f);
-  fread(&property, sizeof(int), 1, f);
+  rc = fread(&m, sizeof(int), 1, f);
+  rc += fread(&n, sizeof(int), 1, f);
+  rc += fread(&nz, sizeof(int), 1, f);
+  rc += fread(&nzmax, sizeof(int), 1, f);
+  rc += fread(&type, sizeof(int), 1, f);
+  rc += fread(&format, sizeof(int), 1, f);
+  rc += fread(&property, sizeof(int), 1, f);
+  if (rc != 7) return NULL;
   A = SparseMatrix_new(m, n, nz, type, format);
   A->nz = nz;
   A->property = property;