|Subject:||Re: Return std::complex<float> as octave_value from oct.|
|Date:||Mon, 18 Jul 2016 17:14:41 +0100|
On Fri, Jul 15, 2016 at 17:00:07 +0100, Zoltán Szabó wrote:
> I have an oct module where I have a std::complex<float> as a result of some
> c++ function.
> What is the best way to return it as an octave_value to octave? I tried to
> create a ComplexNDArray but I could not figure out how to do it properly.
> My result variable basically an array of complex numbers, so like:
> [24.000000 + 0.000000i, 0.809017 + -5.567582i]
> So if needed I can create a different type of variable than complex<float>
> from the oct module.
If it's a 1-dimensional array of std::complex<float>, you can do
size_t len = // the size of your array
FloatComplexRowVector v (len);
for (i = 0; i < len; i++)
v(i) = a[i];
return ovl (v);
If the function you are calling allows you to pass in a pointer to an
array to be filled, then maybe you'll want to create the Octave array
object first, and pass in a pointer to its raw data with the data()
method to avoid the extra copy.
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