creatur-5.9.0: Framework for artificial life experiments.

Copyright(c) Amy de Buitléir 2012-2014
LicenseBSD-style
Maintaineramy@nualeargais.ie
Stabilityexperimental
Portabilityportable
Safe HaskellNone
LanguageHaskell98

ALife.Creatur.Counter

Description

A simple counter which persists between runs.

Synopsis

Documentation

class Counter c where Source

Methods

current :: StateT c IO Int Source

increment :: StateT c IO () Source

Instances

type PersistentCounter = Persistent Int Source

mkPersistentCounter :: FilePath -> PersistentCounter Source

Creates a counter that will store its value in the specified file.