Utils.hs

{- arch-tag: Tuple utilities main file
Copyright (C) 2004-2006 John Goerzen <jgoerzen@complete.org>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-}

{- |
   Module     : Data.Tuple.Utils
   Copyright  : Copyright (C) 2004-2008 John Goerzen
   License    : GNU GPL, version 2 or above

   Maintainer : John Goerzen <jgoerzen@complete.org> 
   Stability  : provisional
   Portability: portable

This module provides various helpful utilities for dealing with lists.

Written by Neil Mitchell, <http://www.cs.york.ac.uk/~ndm/>
-}

module Data.Tuple.Utils(
    -- * Extraction
    fst3, snd3, thd3
    ) where


-- | Take the first item out of a 3 element tuple
fst3 :: (a,b,c) -> a
fst3 (a,b,c) = a

-- | Take the second item out of a 3 element tuple
snd3 :: (a,b,c) -> b
snd3 (a,b,c) = b

-- | Take the third item out of a 3 element tuple
thd3 :: (a,b,c) -> c
thd3 (a,b,c) = c