Re: [Haskell-cafe] sizeOf on a type

Hi,

I would like to write a routine like

nextPtr :: Storable a => Ptr a -> Ptr a nextPtr = (`plusPtr` sizeOf (undefined :: a))

which increments a pointer by the correct amount, but GHC complains that the type variable "a" is ambiguous.

Maybe Foreign.Marshal.Array.advancePtr is what you really need in this case. Gergely -- http://www.fastmail.fm - The professional email service