| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Data.Semiring.Infinite
Description
This module provides various "infinite" wrappers, which can provide a detectable infinity to an otherwise non-infinite type.
Synopsis
- class HasPositiveInfinity a where
- positiveInfinity :: a
- isPositiveInfinity :: a -> Bool
- class HasNegativeInfinity a where
- negativeInfinity :: a
- isNegativeInfinity :: a -> Bool
- data NegativeInfinite a
- = NegativeInfinity
- | NegFinite !a
- data PositiveInfinite a
- = PosFinite !a
- | PositiveInfinity
- data Infinite a
Documentation
class HasPositiveInfinity a where Source #
A class for semirings with a concept of "infinity". It's important that
this isn't regarded as the same as "bounded":
x should probably equal <+> positiveInfinitypositiveInfinity.
Methods
positiveInfinity :: a Source #
A positive infinite value
isPositiveInfinity :: a -> Bool Source #
Test if a value is positive infinity.
Instances
| HasPositiveInfinity Double Source # | |
Defined in Data.Semiring | |
| HasPositiveInfinity Float Source # | |
Defined in Data.Semiring | |
| HasPositiveInfinity CFloat Source # | |
Defined in Data.Semiring | |
| HasPositiveInfinity CDouble Source # | |
Defined in Data.Semiring | |
| HasPositiveInfinity (Infinite a) Source # | |
Defined in Data.Semiring.Infinite | |
| HasPositiveInfinity (PositiveInfinite a) Source # | |
Defined in Data.Semiring.Infinite Methods positiveInfinity :: PositiveInfinite a Source # isPositiveInfinity :: PositiveInfinite a -> Bool Source # | |
class HasNegativeInfinity a where Source #
A class for semirings with a concept of "negative infinity". It's important
that this isn't regarded as the same as "bounded":
x should probably equal <+> negativeInfinitynegativeInfinity.
Methods
negativeInfinity :: a Source #
A negative infinite value
isNegativeInfinity :: a -> Bool Source #
Test if a value is negative infinity.
Instances
| HasNegativeInfinity Double Source # | |
Defined in Data.Semiring | |
| HasNegativeInfinity Float Source # | |
Defined in Data.Semiring | |
| HasNegativeInfinity CFloat Source # | |
Defined in Data.Semiring | |
| HasNegativeInfinity CDouble Source # | |
Defined in Data.Semiring | |
| HasNegativeInfinity (Infinite a) Source # | |
Defined in Data.Semiring.Infinite | |
| HasNegativeInfinity (NegativeInfinite a) Source # | |
Defined in Data.Semiring.Infinite Methods negativeInfinity :: NegativeInfinite a Source # isNegativeInfinity :: NegativeInfinite a -> Bool Source # | |
data NegativeInfinite a Source #
Adds negative infinity to a type. Useful for expressing detectable infinity
in types like Integer, etc.
Constructors
| NegativeInfinity | |
| NegFinite !a |
Instances
data PositiveInfinite a Source #
Adds positive infinity to a type. Useful for expressing detectable infinity
in types like Integer, etc.
Constructors
| PosFinite !a | |
| PositiveInfinity |
Instances
Adds positive and negative infinity to a type. Useful for expressing
detectable infinity in types like Integer, etc.