From 34527a3176a26857d39c946af07355850d207fa8 Mon Sep 17 00:00:00 2001
From: Craig Dowell <craigdo@ee.washington.edu>
Date: Mon, 19 Apr 2010 10:10:49 -0700
Subject: [PATCH] break down and check return values

---
 src/test/perf/perf-io.cc | 6 +++++-
 utils/test-runner.cc     | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/test/perf/perf-io.cc b/src/test/perf/perf-io.cc
index 0a74a063e..aad9ccd4d 100644
--- a/src/test/perf/perf-io.cc
+++ b/src/test/perf/perf-io.cc
@@ -27,6 +27,7 @@
 #include "ns3/node-module.h"
 #include "ns3/core-module.h"
 #include "ns3/helper-module.h"
+#include "ns3/abort.h"
 
 using namespace ns3;
 using namespace std;
@@ -50,7 +51,10 @@ PerfFile (FILE *file, uint32_t n, const char *buffer, uint32_t size)
 {
   for (uint32_t i = 0; i < n; ++i)
     {
-      size_t __attribute__ ((unused)) result = fwrite (buffer, 1, size, file);
+      if (fwrite (buffer, 1, size, file) !=  size)
+        {
+          NS_ABORT_MSG ("PerfFile():  fwrite error");
+        }
     }
 }
 
diff --git a/utils/test-runner.cc b/utils/test-runner.cc
index a524e5385..7916baf4a 100644
--- a/utils/test-runner.cc
+++ b/utils/test-runner.cc
@@ -18,6 +18,7 @@
 
 #include "ns3/test.h"
 #include "ns3/assert.h"
+#include "ns3/abort.h"
 
 #include <iostream>
 #include <fstream>
@@ -107,7 +108,10 @@ BaseDir (void)
   // depends on the leading '/'
   //
   char pathbuf[PATH_MAX];
-  char * __attribute__ ((unused)) p = getcwd (pathbuf, sizeof(pathbuf));
+  if (getcwd (pathbuf, sizeof(pathbuf)) == NULL)
+    {
+      NS_ABORT_MSG ("Basedir():  unable to getcwd()");
+    }
 
   //
   // Walk up the directory tree looking for a directory that has files that