Most Adaptable Programs


As the founding judge of the International Obfuscated C Code Contest:

http://reality.sgi.com/csp/ioccc

(a Geek Site of the Day winner 14 Feb 96) I have to recommend
what we gave as the 'Most adaptable program' by Jack Applin
of Hewlett-Packard, Ft. Collins CO USA:
cat =13 /*/ >/dev/null 2>&1; echo "Hello, world!"; exit
*
*  This program works under K&R non-ANSI cc, f77, /bin/ksh and /bin/sh.
*
*/; main() {
      write(
cat-~-cat
     /*,'(
*/
     ,"Hello, world!"
     ,
cat); putchar(~-~-~-cat); } /*
     ,)')
      end
*/


submitted by: chongo@prime.corp.sgi.com Landon Curt Noll
How about 7 languages?

---cut here--(two blank lines are MANDATORY)---

                                                                         (*O/*_/
Cu  #%* )pop mark/CuG 4 def/# 2 def%%%%@@P[TX---P\P_SXPY!Ex(mx2ex("SX!Ex4P)Ex=
CuG #%*                                                                  *+Ex=
CuG #%*------------------------------------------------------------------*+Ex=
CuG #%*   POLYGLOT - a program in seven languages      15 February 1991  *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*   Written by Kevin Bungard, Peter Lisle, and Chris Tham          *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*   We have successfully run this program using the following:     *+Ex=
CuG #%*     ANSI COBOL:            MicroFocus COBOL85 (not COBOL74)      *+Ex=
CuG #%*     ISO  Pascal:           Turbo Pascal (DOS & Mac), Unix PC,    *+Ex=
CuG #%*                            AIX VS Pascal                         *+Ex=
CuG #%*     ANSI Fortran:          Unix f77, AIX VS Fortran              *+Ex=
CuG #%*     ANSI C (lint free):    Microsoft C, Unix CC, GCC, Turbo C++, *+Ex=
CuG #%*                            Think C (Mac)                         *+Ex=
CuG #%*     PostScript:            GoScript, HP/Adobe cartridge,         *+Ex=
CuG #%*                            Apple LaserWriter                     *+Ex=
CuG #%*     Shell script:          gnu bash, sh (SysV, BSD, MKS), ksh    *+Ex=
CuG #%*     8086 machine language: MS-DOS 2.00, 3.03, 4.01, 5.00 beta    *+Ex=
CuG #%*                            VPix & DOS Merge (under unix)         *+Ex=
CuG #%*                            SoftPC (on a Mac), MKS shell          *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*   Usage:                                                         *+Ex=
CuG #%*     1. Rename this file to polyglot.[cob|pas|f77|c|ps|sh|com]    *+Ex=
CuG #%*     2. Compile and/or run with appropriate compiler and          *+Ex=
CuG #%*        operating system                                          *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*   Notes:                                                         *+Ex=
CuG #%*     1. We have attempted to use only standard language features. *+Ex=
CuG #%*        Without the -traditional flag gcc will issue a warning.   *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*     2. This text is a comment block in all seven languages.      *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*     3. When run as a .COM file with MS-DOS it makes certain      *+Ex=
CuG #%*        (not unreasonable) assumptions about the contents of      *+Ex=
CuG #%*        the registers.                                            *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*     4. When transfering from Unix to DOS make sure that a LF     *+Ex=
CuG #%*        is correctly translated into a CR/LF.                     *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*   Please mail any comments, corrections or additions to          *+Ex=
CuG #%*   peril@extro.ucc.su.oz.au                                       *+Ex=
CuG #%*                                                                  *+Ex=
CuG #%*------------------------------------------------------------------*QuZ=
CuG #%*                                                                  *+Ex=
CuG #%*!Mx)ExQX4ZPZ4SP5n#5X!)Ex+ExPQXH,B+ExP[-9Z-9Z)GA(W@'UTTER_XYZZY'CPK*+
CuG #(*                                                                  *(
C   # */);                                                              /*(
C   # *)  program        polyglot (output);                             (*+
C   #     identification division.
C   #     program-id.    polyglot.
C   #
C   #     data           division.
C   #     procedure      division.
C   #
C   # * ))cleartomark   /Bookman-Demi findfont 36 scalefont setfont     (
C   # *                                                                 (
C   #
C   # *                  hello polyglots$
C   #     main.
C   #         perform
C     * ) 2>_$$; echo   "hello polyglots"; rm _$$; exit
              print
C             stop run.
     -*,                'hello polyglots'
C
C         print.
C             display   "hello polyglots".                              (
C     */  int i;                                                        /*
C     */  main () {                                                     /*
C     */      i=printf ("hello polyglots\n"); O= &i; return *O;         /*
C     *)                                                                (*
C     *)  begin                                                         (*
C     *)      writeln  ('hello polyglots');                             (*
C     *)                                                                (* )
C     * ) pop 60 360                                                    (
C     * ) pop moveto    (hello polyglots) show                          (
C     * ) pop showpage                                                  ((
C     *)
           end                                                          .(* )
C)pop%     program       polyglot.                                      *){*/}


submitted by: merlyn@dgii.com (Brian Westley)