# HG changeset patch
# User Rik <rik@octave.org>
# Date 1429833794 25200
# Node ID 274b527249310fc890e9d274077705989f2ac222
# Parent  6ee26f89434621ed6e10351c051590490b78f69b
Stop segfault when using empty indexing of a classdef object.

* ov-classdef.cc (cdef_object_array::subsref): Emit an error if '()' empty
indexing is used.

diff -r 6ee26f894346 -r 274b52724931 libinterp/octave-value/ov-classdef.cc
--- a/libinterp/octave-value/ov-classdef.cc	Tue Apr 21 15:37:10 2015 +0100
+++ b/libinterp/octave-value/ov-classdef.cc	Thu Apr 23 17:03:14 2015 -0700
@@ -1629,6 +1629,13 @@
         bool is_scalar = true;
         Array<idx_vector> iv (dim_vector (1, ival.length ()));
 
+        if (ival.empty ())
+          {
+            ::error ("can't index %s object(s) with empty parentheses",
+                     class_name ().c_str ());
+            break;
+          }
+
         for (int i = 0; ! error_state && i < ival.length (); i++)
           {
             iv(i) = ival(i).index_vector ();