The complex type in std.complex restricts the real/imaginary parts of the number to be float/double/real. I am curious to know if there is a reason why integral types are not permitted. I checked the C++ equivalent and it does not have the same requirement.
I mention this because some of my work is done with radar satellite images. All pixels in such an images are stored as complex numbers, but in all cases I am aware of they are stored a short int values. Most software that operates on the images uses complex<short> (most of it is C++). Is there any reason why complex numbers in D's standard lib must be of non-integral types? I believe in C++ the type is optimized for floating point values, but allows other types.
