Default *FEATURES*

:CLISP

the name of this implementation

:ANSI-CL

CLISP purports to conform to [ANSI CL standard]

:COMMON-LISP

required by [ANSI CL standard]

:INTERPRETER

EVAL is implemented

:COMPILER

COMPILE and COMPILE-FILE are implemented

:SOCKETS

see Section 32.4, “Socket Streams”

:MT

see Section 32.5, “Multiple Threads of Execution”

:GENERIC-STREAMS

see Section 31.6, “Generic streams”

:LOGICAL-PATHNAMES

Logical Pathnames are implemented

:FFI

if a foreign function interface (see Section 32.3, “The Foreign Function Call Facility”) is supported (Platform Dependent: Many UNIX, Win32 platforms only)

:GETTEXT

if internationalization (see Section 31.4, “Internationalization of CLISP”) using the GNU gettext package is supported (Platform Dependent: most UNIX platforms only)

:UNICODE

if UNICODE (ISO 10646) characters are supported (see Section 31.5, “Encodings”)

:LOOP

“extended” LOOP form is implemented

:CLOS

CLOS is implemented

:MOP

Meta-Object Protocol is implemented

:WORD-SIZE=64

if CLISP was built for a 64-bit CPU. This could be useful on platforms with 64-bit CPUs which have a 32-bit mode emulation (e.g., i386 is emulated on x86_64 and ia64) so that the user can decide which ABI library to load dynamically using “FFI”.

:WIN32

if hardware = PC (clone) and operating system = Win32 (Windows 95/98/Me/NT/2000/XP)

:PC386

if hardware = PC (clone). It can be used as an indicator for the mainstream hardware characteristics (such as the existence of a graphics card with a non-graphics text mode, or the presence of a keyboard with arrows and Insert/Delete keys, or an ISA/VLB/PCI bus) or software characteristics (such as the Control+Alternate+Delete keyboard combination).

:UNIX

if operating system = UNIX (in this case the hardware is irrelevant!)

:BEOS

if operating system = BeOS (in that case :UNIX is also present)

:CYGWIN

if CLISP is using the Cygwin UNIX compatibility layer on top of Win32 (in that case :UNIX is also present)

:MACOS

if operating system = Mac OS X (in that case :UNIX is also present)