Allegro Common Lisp

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Allegro Common Lisp
Developer(s) Franz Inc
Stable release 10.0 / October 5, 2015; 3 months ago (2015-10-05)
Operating system Microsoft Windows (32 and 64-bit), Mac OS X (Intel, 32 and 64-bit), Linux (32 and 64-bit), FreeBSD (32-bit), Solaris (x64 and SPARC, 32 and 64-bit)
Type IDE

Allegro Common Lisp is a commercial implementation of the Common Lisp programming language developed by Franz Inc. Allegro CL provides the full ANSI Common Lisp standard with many extensions[1] (threads, CLOS streams, CLOS MOP, Unicode, SSL streams, implementations of various Internet protocols, OpenGL interface and more). The first version of Allegro Common Lisp was finished at the end of 1986,[2] originally called Extended Common Lisp. Allegro CL is available for Windows, Linux, Mac OS X and various Unix platforms, supporting 32 or 64 bits. Internationalization support is based on Unicode. It supports various external text encodings and provides string and character types based on UCS-2. Allegro CL can be used with and without its integrated development environment (IDE), which is available for Windows and Linux, and on Mac OS X in version 8.2. The IDE (written itself in Allegro CL) includes various development tools like an editor and an interface designer. Allegro CL can be used to deliver applications.

Allegro CL is available as a Free Express Edition (with some limitations like a limited heap space) for non-commercial use.[3] Customers can get access to much of the source code of Allegro CL.

Allegro CL includes an implementation of Prolog based on the implementation developed by Peter Norvig in Paradigms of Artificial Intelligence Programming.[4]

Franz Inc. sells also products for the Semantic Web.[5] The AllegroGraph RDF Database is written in Allegro Common Lisp.

The most recent release, Allegro CL 10.0, supports Symmetric Multiprocessing.[6][7]

Allegro CL has been used for example in ICAD, Mirai (software), and the development environment for PlayStation and PlayStation 2 games by Naughty Dog.

See also[edit]


  1. ^ "Allegro CL 10.0 documentation". 2010-01-21. Retrieved 2013-07-19. 
  2. ^ "Franz Inc. Company History". Retrieved 2013-07-19. 
  3. ^ "Allegro CL 10.0 Free Express Edition Downloads". Retrieved 2013-07-19. 
  4. ^ Allegro Prolog (Allegro CL version 10.0 documentation)
  5. ^ "AllegroGraph". Retrieved 2013-07-19. 
  6. ^ "Symmetric Multiprocessing documentation". 2012-05-30. Retrieved 2013-07-19. 
  7. ^ "Notes on SMP, David Margolies" (PDF). Retrieved 2013-07-19. 

External links[edit]