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Implementations not fully Haskell 98 compliant, and using a variant Haskell language, include: Eta and Frege are dialects of Haskell targeting the Java virtual machine. Gofer is an educational dialect of Haskell, with a feature called constructor classes, developed by Mark Jones. It is supplanted by Haskell User's Gofer System (Hugs).
The Glasgow Haskell Compiler (GHC) is a native or machine code compiler for the functional programming language Haskell. [5] It provides a cross-platform software environment for writing and testing Haskell code and supports many extensions, libraries , and optimisations that streamline the process of generating and executing code.
Concurrent Haskell is an extension to Haskell that supports threads and synchronization. [7] GHC's implementation of Concurrent Haskell is based on multiplexing lightweight Haskell threads onto a few heavyweight operating system (OS) threads, [8] so that Concurrent Haskell programs run in parallel via symmetric multiprocessing. The runtime can ...
Hugs (Haskell User's Gofer System), also Hugs 98, is a bytecode interpreter for the functional programming language Haskell. Hugs is the successor to Gofer , and was originally derived from Gofer version 2.30b. [ 1 ]
In Haskell and several other languages, these are called foldr1 and foldl1, the 1 making reference to the automatic provision of an initial element, and the fact that the lists they are applied to must have at least one element. These folds use type-symmetrical binary operation: the types of both its arguments, and its result, must be the same.
The Haskell Platform is a set of software packages, tools, and libraries that create a common platform for using and developing applications in the programming language Haskell. With the Haskell Platform, Haskell follows the same principle as Python : "Batteries included". [ 3 ]
Parsec is a library for writing parsers written in the programming language Haskell. [3] It is based on higher-order parser combinators, so a complicated parser can be made out of many smaller ones. [4]
Concurrent Haskell (also Control.Concurrent, or Concurrent and Parallel Haskell) is an extension to the functional programming language Haskell, which adds explicit primitive data types for concurrency. [1] It was first added to Haskell 98, and has since become a library named Control.Concurrent included as part of the Glasgow Haskell Compiler.