haskell functional programming language system

#Haskell functional programming language system portable#
#Haskell functional programming language system software#
#Haskell functional programming language system code#

It is a purely functional language, which means that in general, functions in Haskell have no side effects. Haskell features lazy evaluation, pattern matching, list comprehension, type classes, and type polymorphism. See also: Glasgow Haskell Compiler § Extensions to Haskell The names of the extensions introduced in Haskell 2010 are DoAndIfThenElse, HierarchicalModules, EmptyDataDeclarations, FixityResolution, ForeignFunctionInterface, LineCommentSyntax, PatternGuards, RelaxedDependencyAnalysis, LanguagePragma and NoNPlusKPatterns.

#Haskell functional programming language system code#

It introduces the Language-Pragma-Syntax-Extension which allows for code designating a Haskell source as Haskell 2010 or requiring certain extensions to the Haskell language. Haskell 2010 adds the foreign function interface (FFI) to Haskell, allowing for bindings to other programming languages, fixes some syntax issues (changes in the formal grammar), and bans so-called n-plus-k-patterns, that is, definitions of the form fact (n+1) = (n+1) * fact n are no longer allowed. The first revision, named Haskell 2010, was announced in November 2009 and published in July 2010. This was intended to be an ongoing incremental process to revise the language definition, producing a new revision up to once per year. In early 2006, the process of defining a successor to the Haskell 98 standard, informally named Haskell Prime, began. The language continues to evolve rapidly, with the Glasgow Haskell Compiler (GHC) implementation representing the current de facto standard. In January 2003, a revised version was published as Haskell 98 Language and Libraries: The Revised Report. In February 1999, the Haskell 98 language standard was originally published as The Haskell 98 Report. The committee expressly welcomed creating extensions and variants of Haskell 98 via adding and incorporating experimental features.

#Haskell functional programming language system portable#

In late 1997, the series culminated in Haskell 98, intended to specify a stable, minimal, portable version of the language and an accompanying standard library for teaching, and as a base for future extensions. The committee's efforts resulted in a series of language definitions (1.0, 1.1, 1.2, 1.3, 1.4). The first version of Haskell ('Haskell 1.0') was defined in 1990. The committee's purpose was to consolidate the existing functional languages into a common one that would serve as a basis for future research in functional-language design. At the conference on Functional Programming Languages and Computer Architecture (FPCA '87) in Portland, Oregon, a meeting was held during which participants formed a strong consensus that a committee should be formed to define an open standard for such languages. Of these, Miranda was used most widely, but it was proprietary software. By 1987, more than a dozen non-strict, purely functional programming languages existed.

#Haskell functional programming language system software#

įollowing the release of Miranda by Research Software Ltd, in 1985, interest in lazy functional languages grew. Haskell is used widely in academia and industry. Haskell is based on the semantics, but not the syntax, of the language Miranda, which served to focus the efforts of the initial Haskell working group. Its main implementation is the Glasgow Haskell Compiler.

Type classes first appeared in the Haskell programming language. Haskell features a type system with type inference and lazy evaluation.

As of May 2016, a group is working on the next version, Haskell 2020.

The latest standard of Haskell is Haskell 2010. It is named after logician Haskell Curry. Haskell / ˈ h æ s k əl/ is a standardized, general-purpose purely functional programming language, with non-strict semantics and strong static typing. Haskell 2010 / July 2010 12 years ago ( 2010-07)Ĭlean, FP, Gofer, Hope and Hope +, Id, ISWIM, KRC, Lisp, Miranda, ML and Standard ML, Orwell, SASL, Scheme, SISAL Īgda, Bluespec, C++11/ Concepts, C#/ LINQ, CAL, Cayenne, Clean, Clojure, CoffeeScript, Curry, Elm, Epigram, Escher, F#, Frege, Hack, Idris, Isabelle, Java/ Generics, LiveScript, Mercury, Ωmega, Perl 6, Python, Rust, Scala, Swift, Timber, Visual Basic 9.0 Lennart Augustsson, Dave Barton, Brian Boutel, Warren Burton, Joseph Fasel, Kevin Hammond, Ralf Hinze, Paul Hudak, John Hughes, Thomas Johnsson, Mark Jones, Simon Peyton Jones, John Launchbury, Erik Meijer, John Peterson, Alastair Reid, Colin Runciman, Philip Wadler