arrows-0.2: Arrow classes and transformers Source code Contents Index

Data.Stream Portability portable Stability experimental Maintainer ross@soi.city.ac.uk

Description

Infinite sequences.

Synopsis

data Stream a = Cons { shd :: a stl :: Stream a } zipStream :: Stream a -> Stream b -> Stream (a, b) unzipStream :: Stream (a, b) -> (Stream a, Stream b) listToStream :: [a] -> Stream a streamToList :: Stream a -> [a]

Documentation

data Stream a Source

An infinite sequence. Constructors Cons shd :: a head of the stream stl :: Stream a tail of the stream Instances Monad Stream Functor Stream

zipStream :: Stream a -> Stream b -> Stream (a, b) Source

Lazy zip of a pair of streams.

unzipStream :: Stream (a, b) -> (Stream a, Stream b) Source

Lazy unzip of a pair of streams.

listToStream :: [a] -> Stream a Source

An infinite sequence obtained by padding the list with undefined.

streamToList :: Stream a -> [a] Source

The infinite list corresponding to a stream.

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