base-4.3.1.0: Basic libraries

Portability	portable
Stability	experimental
Maintainer	libraries@haskell.org

Data.Bool

Contents

Booleans
- Operations

Description

The Bool type and related functions.

Synopsis

data Bool
- = False
- | True
(&&) :: Bool -> Bool -> Bool
(||) :: Bool -> Bool -> Bool
not :: Bool -> Bool
otherwise :: Bool

Booleans

data Bool Source

Constructors

Instances

Operations

(&&) :: Bool -> Bool -> Bool Source

Boolean "and"

(||) :: Bool -> Bool -> Bool Source

Boolean "or"

not :: Bool -> Bool Source

Boolean "not"

otherwise :: Bool Source

otherwise is defined as the value True . It helps to make guards more readable. eg.

 f x | x < 0 = ...
 | otherwise = ...