Re: Problem creating compiled oct file

[Carlo de Falco]

On 3 Oct 2009, at 16:47, babelproofreader wrote:

> C++ has a much more strict type system, so you can't expect it to work
> out types for you at run-time. You need to do something like
>
>  ColumnVector c = args (0).column_vector_value ();
>  octave_stdout << c (0) << std::endl;
>
> What syntax would I use to access the individual elements of c?

That's already shown in Søren's example: "c (0)" stands for the first  
element of c
the example below shows how you would print all elements of c

for (ii = octave_idx_type (0); ii<c.length (); ii++)
   octave_stdout << c (ii) << std::endl;

you would use exactly the same syntax to assign element values

ColumnVector d(c);
for (ii = octave_idx_type (0); ii<c.length (); ii++)
   d(c.length () - ii - 1) = c(ii);


For more on writing oct files see here:

http://www.gnu.org/software/octave/doc/interpreter/Oct_002dFiles.html#Oct_002dFiles

or here:

http://octave.sourceforge.net/coda/index.html

HTH,
c.