From bug-request at octave dot org Tue Apr 19 09:58:14 2005
Subject: () should just give a error but goes to panic:
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Etienne de Foras <e_deforas at yahoo dot fr>
Cc: bug at octave dot org
Date: Tue, 19 Apr 2005 10:56:51 -0400

On 19-Apr-2005, Etienne de Foras <e_deforas at yahoo dot fr> wrote:

| Hello,
| 
| Just a bug:
| 
| u=rand(10,10);
| u()=0 gives an error => ok.
| 
| u=rand(10,10,10); (ND-Matrix)
| u()=0 hangs up and return to prompt, normal feeling?
| 
| Thanks and See you.
| 
| version=2.1.67

Please try the following patch.

Thanks,

jwe


liboctave/ChangeLog:

2005-04-19  John W. Eaton  <jwe at octave dot org>

	* Array.cc (assignN): Don't crash if the index list is empty.
 

Index: liboctave/Array.cc
===================================================================
RCS file: /usr/local/cvsroot/octave/liboctave/Array.cc,v
retrieving revision 1.124.2.3
diff -u -r1.124.2.3 Array.cc
--- liboctave/Array.cc	1 Apr 2005 18:22:47 -0000	1.124.2.3
+++ liboctave/Array.cc	19 Apr 2005 14:44:17 -0000
 at @ -2899,6 +2899,13 @@
     {
       lhs.maybe_delete_elements (idx, rfv);
     }
+  else if (n_idx == 0)
+    {
+      (*current_liboctave_error_handler)
+	("invalid number of indices for matrix expression");
+
+      retval = 0;
+    }
   else if (n_idx == 1)
     {
       idx_vector iidx = idx(0);



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