Cody Boone Ferguson
9d63c37f49
There were some which cannot be compiled under clang. One entry we used a patch from Yusuke Endoh to get the entry to compile; thank you Yusuke for your assistance! Another one we used a patch from Yusuke (thank you!) but I further fixed it so that it would work with clang. It had to be done: IOCCC Tetris has to work! This was done by changing the environment arg to main() to be a char * in main() itself rather than a char **. Using a char ** in main() third arg got it to compile but only one key worked with clang so I changed it to be not the third argument but a regular char * in main(). **a (third arg) evaluated correctly but *a[1] and onward was actually part of the environment. Again IOCCC Tetris has to work! I also fixed fubar to work which took a few tweaks. README.md files were also updated.
1.3 KiB
1.3 KiB
Best self-modifying program:
Jay Vosburgh
Sequent Computer Systems, Inc
15450 SW Koll Parkway
Beaverton, OR
97006
USA
To build:
make all
To run
./fubar 2
Judges' comments
Run this with a single digit argument (or wait a long time).
The blank line at the beginning of the source is mandatory. Do you know why?
With a bit of tinkering Cody Boone Ferguson got this to work on modern systems. We thank him for his assistance!
Author's comments
In a nutshell, this is probably the slowest and most
obnoxious factorial program ever written. Unfortunately,
the name of the C source must be "ouroboros.c"; the name is
hard-coded into the program.
The source is a legal shell script and a legal C program.
The shell script compiles itself, and then executes the
resulting binary, giving the source as input. The program
works by successively modifying #define lines each pass through.
Both "indent" and "cb" will damage the program, "indent"
much more so.
Copyright (c) 1989, Landon Curt Noll & Larry Bassel. All Rights Reserved. Permission for personal, educational or non-profit use is granted provided this this copyright and notice are included in its entirety and remains unaltered. All other uses must receive prior permission in writing from both Landon Curt Noll and Larry Bassel.