| Clozure CL | |
|---|---|
| Developer | Clozure Associates |
| Stable release | |
| Operating system | Linux,Solaris,FreeBSD,Mac OS X,Microsoft Windows |
| Platform | Cross-platform |
| Available in | Common Lisp |
| Type | IDE,Compiler andruntime |
| License | Apache 2[2] since Jan 2016, earlier version is licensed underLGPL 2.1. |
| Website | ccl |
Clozure CL (CCL) is aCommon Lisp implementation. It implements the full ANSI Common Lisp standard with several extensions (CLOS MOP, threads, CLOS conditions, CLOS streams, ...). It contains a command line development environment, an experimental integrated development environment (IDE) for Mac OS X using theHemlock editor, and can also be used withSLIME (a Common Lisp development environment forGNU Emacs). Clozure CL isopen source and the project is hosted by Clozure Associates.
Clozure CL supports theMac OS X,Linux,FreeBSD,Solaris andMicrosoft Windows platforms. There are 32 and 64 bitx86 variants for each. Additionally, there arePowerPC ports for Mac OS X and Linux, and a 32-bitARM port for Linux.
Clozure CL was used byITA Software for the business logic of a newAirline Reservation System.[3]
Clozure CL is also commonly used as an underlying Common Lisp implementation for the ACL2 theorem prover.[4]
Formerly known as OpenMCL, Clozure CL is an evolution ofMacintosh Common Lisp.
CCL contains a precise, generational, compacting garbage collector. CCL's compiler produces native instructions for Lisp expressions and files. By default every expression entered at theREPL is compiled to native code.
Lisp threads are implemented as preemptively-scheduled, native operating-system threads.
CCL implements built-in facilities to easily interface with C and Objective-C libraries (Cocoa bridge) and these are used to implement the IDE amongst other things.
TheIDE (based upon theHemlock editor) is currently labelled as experimental. An effort[better source needed][5] is underway to improve this.
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