strcat error on printing plots

[Ben Abbott]

On Tuesday, July 21, 2009, at 09:51AM, "Marco Atzeri" <marco_atzeri at yahoo.it> wrote:
>--- Mar 21/7/09, Ben Abbott <bpabbott at mac.com> ha scritto:
>
>> Da: Ben Abbott <bpabbott at mac.com>
>> Oggetto: Re: strcat error on printing plots
>> A: "Marco Atzeri" <marco_atzeri at yahoo.it>
>> Cc: "octave maintainers list" <maintainers at octave.org>
>> Data: Martedì 21 luglio 2009, 14:38
>
>> ...
>> 
>> #    unwind_protect
>> 
>> #    unwind_protect_cleanup
>> 
>> #    end_unwind_protect
>> 
>> If you then run your commands, the error should provide
>> more information.
>> 
>> Ben
>> 
>
>Hi Ben 
>unfortunately no change:
>
>*********************************************************
>error: Invalid call to strcat.  Correct usage is:
>
> -- Function File:  strcat (S1, S2, ...)
>
>
>Additional help for built-in functions and operators is
>available in the on-line version of the manual.  Use the command
>`doc <topic>' to search the manual index.
>
>Help and information about Octave is also available on the WWW
>at http://www.octave.org and via the help at octave.org
>mailing list.
>warning: __gnuplot_get_var__: some elements in list of return values are undefined

hmmm ... It would be nice if there were a way to diable the "unwind_protect" blocks. As it is, you may need to comment out each of the blocks in the files below ...

__gnuplot_get_var__.m:152
gnuplot_drawnow.m:66
gnuplot_drawnow.m:173
gnuplot_drawnow.m:185
gnuplot_drawnow.m:224

It that isn't enough, try commenting out the blocks below ...

__go_draw_figure__.m:51
__go_draw_figure__.m:91
__go_draw_axes__.m:34

Notice I've included line numbers where the unwind_protect_cleanup command for each block.

>***************************************************************
>
>however checking the memory consumption I suspect some 
>leakage memory issue..
>
>After octave start I have 
>
>21664 K used memory as working set
>a="prova.png";  
> 21668 K
>x=1:100; 
> 21684 K
>plot (x,x);
> 62420 K
>print( "prova1.png","-dpng");
> 62432 K
>
>every successive print command increase the memory 
>foot print of 8K until it crash
>sometime is only after few trials sometime I reached
>12 print's before crash.
>
>Only the print is causing such memory increase,
>if I repeat the plot or the assigment the memory 
>consumption stay flat.

I don't see this problem either.

Ben