X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/fe48bbb73c4f31f9113e2c3ee9990a9ff6450631..ff2bf6c94637f28c0c219e9adc61a11e78be1900:/examples/msg/trace-host-user-variables/trace-host-user-variables.c

diff --git a/examples/msg/trace-host-user-variables/trace-host-user-variables.c b/examples/msg/trace-host-user-variables/trace-host-user-variables.c
index f25f77b26b..82313df75a 100644
--- a/examples/msg/trace-host-user-variables/trace-host-user-variables.c
+++ b/examples/msg/trace-host-user-variables/trace-host-user-variables.c
@@ -78,9 +78,9 @@ int main(int argc, char *argv[])
   }
 
   //create a customized viva graph configuration file
-  FILE *fp;
+  FILE *fp = NULL;
   fp = fopen ("viva_graph.plist", "w");
-  if (!fp){
+  if (fp == NULL){
     return 1;
   }
   fprintf (fp, "{\n node = (");