Safe Haskell	Safe
Language	Haskell98

Test.IOSpec.Teletype

Contents

Description

A pure specification of getChar and putChar.

Synopsis

The IOTeletype monad

An expression of type IOSpec Teletype a corresponds to an IO computation that may print to or read from stdout and stdin respectively.

There is a minor caveat here. I assume that stdin and stdout are not buffered. This is not the standard behaviour in many Haskell compilers.

Instances

Functor Teletype Source #
Instance details Defined in Test.IOSpec.Teletype Methods fmap :: (a -> b) -> Teletype a -> Teletype b # (<$) :: a -> Teletype b -> Teletype a #
Executable Teletype Source #
Instance details Defined in Test.IOSpec.Teletype Methods step :: Teletype a -> VM (Step a) Source #

Pure getChar and putChar

The getChar function can be used to read a character from the teletype.

The getChar function can be used to print a character to the teletype.