[Haskell-cafe] Re: Complex C99 type in Foreign

[Maurí­cio]

>> Are there plans to include C99 'complex' type
>> in Foreign, maybe as CFloatComplex, CDoubleComplex
>> and CLongDoubleComplex? This seems an easy addition
>> to the standard and would allow binding of a few
>> interesting libraries, like GSL.
> 
> A separate library for new types to add to Foreign would be the easiest
> way forward. Just put the foreign-c99 package on Hackage?

As far as I know, this is not possible. (I tried for
a long time to do that, actually, until I reallized
it could not be done.)

If it's not true, i.e., I could actually have some
arbitrary sized parameter as argument to a function
or as a return value (and not its pointer), what
did I saw wrong? I understand only Foreign.C.C*
types or forall a. => Foreign.Ptr.Ptr a can be used
like that.

Maurício