Re: Octave from C++: Saving objects in binary

[Carlo de Falco]

On 7 Jun 2010, at 09:46, Chidambaram Annamalai wrote:

> Thanks a lot! This is what I wanted to achieve.
>
> Could you also tell me how I could modify the save_binary_data
> function arguments so that the Matrix A is stored in single precision
> in the binary file? I believe real matrices in octave are by default
> in double precision. I tried float_value (A) but it didn't work.

I haven't tested it and I don't think it's the cleanest solution,
bu, maybe this works:

> #include <octave/load-save.h>
> #include <octave/ls-oct-binary.h>
>  std::ofstream os ("A.mat");
>  bool boolvar(false);
>  write_header (os, LS_BINARY);
>  save_binary_data (os, octave_value (FloatMatrix (A)),
>                    std::string("A"), std::string(""),
>                    boolvar, boolvar);
>  os.close();


> Thanks,
> Chillu