Complex numbers in occa kernels

[E-Stroem]

Hello,
Is there a way to use C complex numbers and math inside an OCCA kernel?

E.g. the following C code in OCCA kernel:
double complex z1 = 1.0 + 2.0 * I
double complex z2 = 1.0 + 2.0 * I
double complex z3 = z1*z2;

and equivalent creal and cimag functions

Best regards,
E-Stroem

[dmed256]

Hi @E-Stroem,

Good question, I haven't thought about adding complex functions!

One of the goals for the 2019 year is to add basic math methods that work on all backends. Like max would use std::max or just max for OpenCL/CUDA. Some support for that is already in OCCA kernels, but not everything. Adding complex methods like creal and cimag could be done in the same work.

I'm not too familiar with the standard complex methods, do you have a reference or list to some that might be handy?