.. package:infinite-list

Generate an infinite progression, starting from a given element, similar to [x..]. For better user experience consider enabling {-# LANGUAGE PostfixOperators #-}:

>>> :set -XPostfixOperators

>>> Data.List.Infinite.take 10 (0...)
[0,1,2,3,4,5,6,7,8,9]

Beware that for finite types (...) applies cycle atop of [x..]:

>>> :set -XPostfixOperators

>>> Data.List.Infinite.take 10 (EQ...)
[EQ,GT,EQ,GT,EQ,GT,EQ,GT,EQ,GT]

Remember that Int is a finite type as well. One is unlikely to hit this on a 64-bit architecture, but on a 32-bit machine it's fairly possible to traverse ((0 :: Int) ...) far enough to encounter 0 again.

Generate an infinite arithmetic progression, starting from given elements, similar to [x,y..]. For better user experience consider enabling {-# LANGUAGE PostfixOperators #-}:

>>> :set -XPostfixOperators

>>> Data.List.Infinite.take 10 ((1,3)....)
[1,3,5,7,9,11,13,15,17,19]

Beware that for finite types (....) applies cycle atop of [x,y..]:

>>> :set -XPostfixOperators

>>> Data.List.Infinite.take 10 ((EQ,GT)....)
[EQ,GT,EQ,GT,EQ,GT,EQ,GT,EQ,GT]

Remember that Int is a finite type as well: for a sufficiently large step of progression y - x one may observe ((x :: Int, y)....) cycling back to emit x fairly soon.