List comprehensions: Difference between revisions

=={{header|Oz}}==

Oz does not have list comprehension.

However, there is a list comprehension package available [http://oz-code.googlecode.com/files/ListComprehension.zip here]. It uses the <em>unofficial and deprecated</em> macro system. Usage example:

<lang oz>functor

import

LazyList

Application

System

define

fun {Pyth N}

<<list [X Y Z] with

X <- {List.number 1 N 1}

Y <- {List.number X N 1}

Z <- {List.number Y N 1}

where X*X + Y*Y == Z*Z

>>

end

{ForAll {Pyth 20} System.show}

{Application.exit 0}

end</lang>