void vsip_CMUL_f(vsip_cscalar_f a, vsip_cscalar_f b, vsip_cscalar_f *r);
This function performs complex scalar multiplication of two complex scalar values and storing the result in the output pointer.
The operation performs:

vsip_cscalar_p a: First complex scalar number.
vsip_cscalar_p b: Second complex scalar number.
vsip_cscalar_p* r: Pointer to the complex scalar where the result will be stored.