Re: C++ template

[Mike Miller]

On Mon, 4 Oct 2004, Fredrik Bulow wrote:

> That's weird. If I run the same sequence as you just did I get:
>
> octave:1> a=ones(5,5)
> a =
>
>  1  1  1  1  1
>  1  1  1  1  1
>  1  1  1  1  1
>  1  1  1  1  1
>  1  1  1  1  1
>
> octave:2> a(6)==a(1,2)
> error: single index only valid for row or column vector
> error: evaluating binary operator `==' near line 2, column 5


I think this is a problem with do_fortran_indexing, which has been 
eliminated as a global variable in recent versions of Octave.  Try doing 
this:

octave:1> do_fortran_indexing

And see if it returns a zero.  If it does, try this:


octave:2> do_fortran_indexing = 1;

Then rerun your a(6)==a(1,2) code and see what happens.

It is possible that the people using Octave version 2.1.50 who do not see 
this problem have their do_fortran_indexing global variable set to 1 by 
default.  I also think that the newer versions of Octave that do not have 
do_fortran_indexing, have the functionality that one used to get with 
do_fortran_indexing set to 1.  This is MATLAB compatible.

Mike



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------