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Prelude.deref.3kaya
Langue: en
Version: March 2009 (fedora - 05/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
Prelude::deref - Dereference a Maybe.SYNOPSIS
a deref( Maybe<a> v )ARGUMENTS
v The value to dereference
DESCRIPTION
Extract the value from a Prelude.Maybe(3kaya)
An Exception is thrown if v is nothing
A case statemement is generally more appropriate unless it is known that the dereferencing should succeed (for example, using Dict.lookup(3kaya) on a key known to have been added). deref(x) is equivalent to x.val
AUTHORS
Kaya standard library by Edwin Brady, Chris Morris and others (kaya@kayalang.org). For further information see http://kayalang.org/LICENSE
The Kaya standard library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (version 2.1 or any later version) as published by the Free Software Foundation.RELATED
Prelude.Maybe(3kaya)
Prelude.CantDerefNothing(3kaya)
Contenus ©2006-2024 Benjamin Poulain
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