Data.Repa.Eval.Elt

Values that can be stored in Repa Arrays.

Documentation

class Elt a where

Element types that can be used with the blockwise filling functions.

This class is mainly used to define the touch method. This is used internally in the imeplementation of Repa to prevent let-binding from being floated inappropriately by the GHC simplifier. Doing a seq sometimes isn't enough, because the GHC simplifier can erase these, and still move around the bindings.

This class supports the generic deriving mechanism, use deriving instance Elt (TYPE)

Minimal complete definition

Nothing

Methods

touch :: a -> IO ()

Place a demand on a value at a particular point in an IO computation.

zero :: a

Generic zero value, helpful for debugging.

one :: a

Generic one value, helpful for debugging.

Instances

Elt Bool

Elt Char

Elt Double

Elt Float

Elt Int

Elt Int8

Elt Int16

Elt Int32

Elt Int64

Elt Word

Elt Word8

Elt Word16

Elt Word32

Elt Word64

(Elt a, Elt b) => Elt (a, b)

(Elt a, Elt b, Elt c) => Elt (a, b, c)

(Elt a, Elt b, Elt c, Elt d) => Elt (a, b, c, d)

(Elt a, Elt b, Elt c, Elt d, Elt e) => Elt (a, b, c, d, e)

(Elt a, Elt b, Elt c, Elt d, Elt e, Elt f) => Elt (a, b, c, d, e, f)