FL (programming language)

FL (short for "Function Level") is a programming language created at the IBM Almaden Research Center by John Backus, John Williams, and Edward Wimmers in the 1980s and documented in a report from 1989.[1] FL was designed as a successor of Backus' earlier FP language, providing specific support for what Backus termed function-level programming.

FL
ParadigmFunction-level, functional
Designed byJohn Backus
John Williams
Edward Wimmers
First appeared1989
Typing disciplineDynamic
Influenced by
FP
Influenced
J

FL is a dynamically typed strict functional programming language with throw and catch exception semantics much like in ML. Each function has an implicit history argument which is used for doing things like strictly functional input/output (I/O), but is also used for linking to C code. For doing optimization, there exists a type-system which is an extension of Hindley–Milner type inference.

Uses

PLaSM is a "geometry-oriented extension of a subset of the FL language"[2] first described in 1992.

References

  1. Aiken, Alexander; Williams, John H.; Wimmers, Edward L. "The FL Project: Design of a Functional Language" (PDF). Stanford University.
  2. "Introduction to FL and PLaSM". plasm.net.
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