Re: "warning: implicit conversion from matrix to sq_string" message

[Sergei Steshenko]

--- On Thu, 8/4/11, Sergei Steshenko <address@hidden> wrote:

> From: Sergei Steshenko <address@hidden>
> Subject: "warning: implicit conversion from matrix to sq_string" message
> To: address@hidden
> Date: Thursday, August 4, 2011, 10:58 PM
> Hello,
> 
> I am working on 'pkg.m' in octave-3.4.2, and I have this
> piece of code:
> 
>         fprintf(stderr, "CHECKPOINT
> 2a\n");
>         fprintf(stderr, "%s", 
> toascii(output));
>         fprintf(stderr, "CHECKPOINT
> 2b\n");
> 
> producing the following output:
> 
> "
> CHECKPOINT 2a
> warning: implicit conversion from matrix to sq_string
> checking for pkg-config...
> /mnt/sdb8/sergei/AFSWD_debug/20110601/pkg-config-0.25/bin/pkg-config
> checking pkg-config is at least version 0.9.0... yes
> checking for GINAC... yes
> configure: creating ./config.status
> 
>   "$prefix" is
> /mnt/sdb8/sergei/AFSWD_debug/20110601/octave-3.4.2/share/octave/packages/symbolic-1.0.9
>   "$exec_prefix" is ${prefix}
> 
> 
> find . -name NOINSTALL -print    # shows which
> toolboxes won't be installed
> 
> CHECKPOINT 2b
> ".
> 
> In the above output one can see
> 
> "
> warning: implicit conversion from matrix to sq_string
> ".
> 
> The above warning is also produced when I simply have
> 
>         fprintf(stderr, "%s", 
> output);
> 
> - I hoped 'toascii' would remove the warning.
> 
> Is this warning my bug, i.e. I am forcing 'octave' to
> perform an implicit
> conversion, but there is a way to perform an explicit
> conversion and
> eliminate the warning ? If so, what conversion should I use
> ?
> 
> Or is it an 'octave' bug ?
> 
> Thanks,
>   Sergei.
> _______________________________________________
> Help-octave mailing list
> address@hidden
> https://mailman.cae.wisc.edu/listinfo/help-octave
> 

"
        fprintf(stderr, "%s",  strvcat(output));
"

seems to be the answer, i.e. 'strvcat' is the explicit conversion in
question.

Regards,
  Sergei.