sdp-0.2: Simple Data Processing

Copyright	(c) Andrey Mulik 2019
License	BSD-style
Maintainer	work.a.mulik@gmail.com
Portability	portable
Safe Haskell	Safe
Language	Haskell2010

SDP.Comparing

Contents

Exports
Type synonyms
Common comparators

Description

SDP.Comparing provide common comparators and combinators.

Synopsis

module Data.Ord
module Data.Eq
type Equal e = e -> e -> Bool
type Compare e = e -> e -> Ordering
(<=>) :: Ord o => Compare o
eqfst :: Eq e => Equal (e, s)
eqsnd :: Eq e => Equal (f, e)
cmpfst :: Ord o => Compare (o, s)
cmpsnd :: Ord o => Compare (f, o)
invertcmp :: Compare e -> Compare e

Exports

module Data.Ord

module Data.Eq

Type synonyms

type Equal e = e -> e -> Bool Source #

Equal is just synonym of (e -> e -> Bool).

type Compare e = e -> e -> Ordering Source #

Compare is just synonym of (e -> e -> Ordering).

Common comparators

(<=>) :: Ord o => Compare o infixl 4 Source #

Spaceship operator - infix version of compare.

eqfst :: Eq e => Equal (e, s) Source #

Compare tuples by first elements.

eqsnd :: Eq e => Equal (f, e) Source #

Compare tuples by second elements.

cmpfst :: Ord o => Compare (o, s) Source #

Compare tuples by first elements.

cmpsnd :: Ord o => Compare (f, o) Source #

Compare tuples by second elements.

invertcmp :: Compare e -> Compare e Source #

Common compare combinator