# HG changeset patch
# User Vytautas Jančauskas <unaudio@gmail.com>
# Date 1379593439 -10800
# Node ID 1cc6bcc5b90c69e1903c8a3875656be2ba89dd59
# Parent  93f26237c30b61c741c9ba9375ae153f8ff899bf
fix audioinfo crashing when no arguments are given

* audioinfo.cc: when the wrong number of arguments is given abort with an
error message

diff -r 93f26237c30b -r 1cc6bcc5b90c libinterp/dldfcn/audioinfo.cc
--- a/libinterp/dldfcn/audioinfo.cc	Thu Sep 19 15:18:25 2013 +0300
+++ b/libinterp/dldfcn/audioinfo.cc	Thu Sep 19 15:23:59 2013 +0300
@@ -14,6 +14,11 @@
 )
 {
   octave_scalar_map retval;
+  if (args.length () != 1 || not args(0).is_string ())
+    {
+      print_usage ();
+      return octave_value(retval);
+    }
 #ifdef HAVE_SNDFILE
   Matrix audio;
   SNDFILE *file;