OVERVIEW: Objective Caml is an implementation of the ML language, based on the Caml Light dialect extended with a complete class-based object system and a powerful module system in the style of Standard ML. Objective Caml comprises two compilers. One generates bytecode which is then interpreted by a C program. This compiler runs quickly, generates compact code with moderate memory requirements, and is portable to essentially any 32 or 64 bit Unix platform. Performance of generated programs is quite good for a bytecoded implementation: almost twice as fast as Caml Light 0.7. This compiler can be used either as a standalone, batch-oriented compiler that produces standalone programs, or as an interactive, toplevel-based system. The other compiler generates high-performance native code for a number of processors. Compilation takes longer and generates bigger code, but the generated programs deliver excellent performance (better than Standard ML of New Jersey 1.09 on our tests), while retaining the moderate memory requirements of the bytecode compiler. The native-code compiler currently runs on the following platforms: Intel Pentium processors: PCs under Linux, FreeBSD, NetBSD, OpenBSD, NextStep, Solaris 2, BeOS. Alpha processors: Digital/Compaq Alpha machines under Digital Unix/Compaq Tru64, Linux, NetBSD and OpenBSD. Sparc processors: Sun Sparc under SunOS 4.1, Solaris 2, NetBSD, Linux Mips processors: SGI workstations and mainframes under IRIX 6 HP PA-RISC processors: HP 9000/700 under HPUX 9 PowerPC processors: IBM RS6000 and PowerPC workstations under AIX 3.2, PowerMacintosh under MkLinux, LinuxPPC, MacOS X Server Motorola 680x0 processors: Sun 3 under SunOS Strong ARM processors: Corel Netwinder under Linux Other operating systems for the processors above have not been tested, but the compiler may work under other operating systems with little work. Before the introduction of objects, Objective Caml was known as Caml Special Light. Objective Caml is almost upwards compatible with Caml Special Light, except for a few additional reserved keywords that have forced some renamings of standard library functions. CONTENTS: Changes what's new with each release INSTALL instructions for installation INSTALL.MPW infos on the Macintosh MPW port of Objective Caml LICENSE license and copyright notice Makefile main Makefile README this file README.win32 infos on the MS Windows NT/Windows 95 port of O.Caml asmcomp/ native-code compiler and linker asmrun/ native-code runtime library boot/ bootstrap compiler bytecomp/ bytecode compiler and linker byterun/ bytecode interpreter and runtime system config/ autoconfiguration stuff debugger/ source-level replay debugger driver/ driver code for the compilers emacs/ Caml editing mode and debugger interface for GNU Emacs lex/ lexer generator maccaml/ the Macintosh GUI otherlibs/ several external libraries parsing/ syntax analysis stdlib/ standard library tools/ various utilities toplevel/ interactive system typing/ typechecking utils/ utility libraries yacc/ parser generator COPYRIGHT: All files marked "Copyright INRIA" in this distribution are copyright 1996, 1997, 1998, 1999 Institut National de Recherche en Informatique et en Automatique (INRIA) and distributed under the conditions stated in file LICENSE. INSTALLATION: See the file INSTALL for installation instructions on Unix machines. For MS Windows, see README.win32. For the Macintosh, see INSTALL.MPW. DOCUMENTATION: The Objective Caml manual is distributed in HTML, PDF, Postscript, DVI, and Emacs Info files. It can be obtained by anonymous FTP from ftp.inria.fr as described below. It is also available on the World Wide Web, at http://caml.inria.fr/ocaml/ AVAILABILITY: The complete Objective Caml distribution resides on ftp.inria.fr, and can be accessed by anonymous FTP: host: ftp.inria.fr (192.93.2.54) directory: lang/caml-light or through a Web browser at ftp://ftp.inria.fr/lang/caml-light/ KEEPING IN TOUCH WITH THE CAML COMMUNITY: There exists a mailing list of users of the Caml implementations developed at INRIA. The purpose of this list is to share experience, exchange ideas (and even code), and report on applications of the Caml language. This list is moderated; messages can be written in English or in French. The list has about 400 subscribers. Messages to the list should be sent to: caml-list@inria.fr If you wish to subscribe to this list, please send a message (including your email address) to: caml-list-request@inria.fr Archives of the list are available on the World Wide Web at URL http://caml.inria.fr/ The Usenet news groups comp.lang.ml and comp.lang.functional also contains discussions about the ML family of programming languages, including Caml. BUG REPORTS AND USER FEEDBACK: Send your bug reports by E-mail to: caml@inria.fr To be effective, bug reports should include a complete program (preferably small) that exhibits the unexpected behavior, and the configuration you are using (machine type, etc). The mailing list caml@inria.fr is forwarded to a small group of implementors at INRIA. For general questions and discussions, caml-list@inria.fr is better; for bug reports and very specific technical questions, caml@inria.fr is preferred. We often redirect messages from one list to the other, anyway.