Storable instance for Complex
I propose that the following instance be added to base:
instance (RealFloat a, Storable a) => Storable (Complex a) where
sizeOf z = 2 * sizeOf (realPart z)
alignment z = sizeOf (realPart z)
peek p = do
[r,i] <- peekArray 2 (castPtr p)
return (r :+ i)
poke p (r :+ i) = pokeArray (castPtr p) [r,i]
This instance is binary compatible with C99, C++ and Fortran complex types.
It is currently needed by at least two independent packages: hmatrix and fft. Since it is natural for user code to use both of these packages, we need to move the instance to a common location.
Trac metadata
Trac field | Value |
---|---|
Version | 6.8.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | libraries/base |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Multiple |
Architecture | Multiple |