| Portability | portable |
|---|---|
| Stability | experimental |
| Maintainer | Ashley Yakeley <ashley@semantic.org> |
| Safe Haskell | Trustworthy |
Data.Fixed
Description
This module defines a "Fixed" type for fixed-precision arithmetic. The parameter to Fixed is any type that's an instance of HasResolution. HasResolution has a single method that gives the resolution of the Fixed type.
This module also contains generalisations of div, mod, and divmod to work with any Real instance.
- div' :: (Real a, Integral b) => a -> a -> b
- mod' :: Real a => a -> a -> a
- divMod' :: (Real a, Integral b) => a -> a -> (b, a)
- data Fixed a
- class HasResolution a where
- resolution :: p a -> Integer
- showFixed :: HasResolution a => Bool -> Fixed a -> String
- data E0
- type Uni = Fixed E0
- data E1
- type Deci = Fixed E1
- data E2
- type Centi = Fixed E2
- data E3
- type Milli = Fixed E3
- data E6
- type Micro = Fixed E6
- data E9
- type Nano = Fixed E9
- data E12
- type Pico = Fixed E12
Documentation
divMod' :: (Real a, Integral b) => a -> a -> (b, a)Source
generalisation of divMod to any instance of Real
The type parameter should be an instance of HasResolution.
Instances
| Typeable1 Fixed | |
| Enum (Fixed a) | |
| Eq (Fixed a) | |
| (Num (Fixed a), HasResolution a) => Fractional (Fixed a) | |
| (Typeable (Fixed a), Typeable a) => Data (Fixed a) | |
| HasResolution a => Num (Fixed a) | |
| Eq (Fixed a) => Ord (Fixed a) | |
| HasResolution a => Read (Fixed a) | |
| (Num (Fixed a), Ord (Fixed a), HasResolution a) => Real (Fixed a) | |
| (Real (Fixed a), Fractional (Fixed a), HasResolution a) => RealFrac (Fixed a) | |
| HasResolution a => Show (Fixed a) |
class HasResolution a whereSource
Methods
resolution :: p a -> IntegerSource