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|Paradigms||Multi-paradigm: procedural, functional, object-oriented, meta, reflective, generic|
|Designed by||Giuseppe Attardi|
|Developers||Daniel Kochmański, Marius Gerbershagen|
|First appeared||1 January 1995|
21.2.1 / 1 February 2021
|Typing discipline||Dynamic, strong|
|Implementation language||C, Common Lisp|
|OS||Unix-like, Android, Windows|
|Lisp, Common Lisp, C|
Embeddable Common Lisp (ECL) is a small implementation of the ANSI Common Lisp programming language that can be used stand-alone or embedded in extant applications written in C. It creates OS-native executables and libraries (i.e. Executable and Linkable Format (ELF) files on unix) from Common Lisp code, and runs on most platforms that support a C compiler. The ECL runtime is a dynamically loadable library for use by applications. It is distributed as free and open-source software under a GNU Lesser Public License (LGPL) 2.1+.
It includes a runtime system, and two compilers, a bytecode interpreter allowing applications to be deployed where no C compiler is expected, and an intermediate language type, which compiles Common Lisp to C for a more efficient runtime. The latter also features a native foreign function interface (FFI), that supports inline C as part of Common Lisp. Inline C FFI combined with Common Lisp macros, custom Lisp
setf expansions and compiler-macros, result in a custom compile-time C preprocessor.