some cleanups before reorg

[simgrid.git] / examples / msg / tracing / categories.c

diff --git a/examples/msg/tracing/categories.c b/examples/msg/tracing/categories.c
index 43963e3..22d2c47 100644 (file)
--- a/examples/msg/tracing/categories.c
+++ b/examples/msg/tracing/categories.c
@@ -78,10 +78,8 @@ static int slave(int argc, char *argv[])
 int main(int argc, char *argv[])
 {
   MSG_init(&argc, argv);
-  if (argc < 3) {
-    printf("Usage: %s platform_file deployment_file\n", argv[0]);
-    exit(1);
-  }
+  xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
+             "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
 
   MSG_create_environment(argv[1]);