| Copyright | (c) Ashley Yakeley 2005, 2006, 2009 |
|---|---|
| License | BSD-style (see the file libraries/base/LICENSE) |
| Maintainer | Ashley Yakeley <ashley@semantic.org> |
| Stability | experimental |
| Portability | portable |
| Safe Haskell | Trustworthy |
| Language | Haskell2010 |
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)
- newtype Fixed a = MkFixed Integer
- 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
| Enum (Fixed a) | |
| Eq (Fixed a) | |
| HasResolution a => Fractional (Fixed a) | |
| Typeable * a => Data (Fixed a) | |
| HasResolution a => Num (Fixed a) | |
| Ord (Fixed a) | |
| HasResolution a => Read (Fixed a) | |
| HasResolution a => Real (Fixed a) | |
| HasResolution a => RealFrac (Fixed a) | |
| HasResolution a => Show (Fixed a) | |
| Typeable (* -> *) Fixed |
class HasResolution a where Source
Methods
resolution :: p a -> Integer Source