Double +base

data Double :: *
base Prelude, base GHC.Exts
Double-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE double-precision type.
base GHC.Constants
data CDouble
base Foreign.C.Types
Haskell type representing the C double type.
mAX_Double_REG :: Int
base GHC.Constants
mAX_Real_Double_REG :: Int
base GHC.Constants