factor/extra/math/compare/compare.factor

! Copyright (C) 2008 John Benediktsson
! See http://factorcode.org/license.txt for BSD license

USING: math math.order kernel ;

IN: math.compare 

: absmin ( a b -- x ) 
   [ [ abs ] bi@ < ] 2keep ? ;

: absmax ( a b -- x ) 
   [ [ abs ] bi@ > ] 2keep ? ;

: posmax ( a b -- x ) 
   0 max max ;

: negmin ( a b -- x ) 
   0 min min ;

: clamp ( a value b -- x )
   min max ;