Files
Landon Curt Noll f64f244ba6 update due to recent commits
The largest change was due to modifying `ioccc.css`
that resulted in all year and entry tarballs being modified.

Ran `make update` to perform the above.
2025-11-25 22:42:46 -08:00
..
2023-04-01 09:43:21 -07:00
2023-07-06 21:49:38 -07:00

To build:

    make all

There is an alternate version, based on the original, that can be compiled in modern systems but likely won't do anything. See Alternate code below.

To use:

    ./isaak

Alternate code:

The original version of this code is in isaak.alt.c, with a minor fix so that it will compile. The original entry starts with the line:

    main(){};

This works on some systems. Why? Note that #include <stdio.h> is given on the last line. Why is this needed? Note the unusual calls to sprintf(3).

This version also relied on being able to define #define to something else and using that macro for #define. This was fixed, however, so that you can at least compile it in modern systems.

This version will not likely work on modern systems even though you should be able to compile it.

Alternate build:

    make alt

Alternate use:

Use isaak.alt as you would isaak above.

Judges' remarks:

The program relies heavily on ASCII. Don't even think of running it on an EBCDIC machine.

Historical notes about the original entry

NOTE: If you named the file anything other than isaak.c, you had to change the #include on line 6. This limitation has been fixed in isaak.c and isaak.alt.c by using the __FILE__ macro.

NOTE: The use of null comments to separate macros to construct different tokens from a single macro (e.g., "O/**/O" creates either ++ or -- by defining O to be + or -) may cause some strict ANSI C preprocessors to object.

NOTE: Most System V machines were not be able to execute this program correctly due to the fact that BSD style systems have an sprintf(3) that returns a char *. Due to the above problems, we placed the output of this program in the file isaak.output.txt. Since this was fixed, this file is not strictly necessary, but we keep it for historical purposes (decoded as it used to be uuencoded). See the isaak.orig.c for the original source.

FYI: We are likely to be more strict about portability in the future.

Author's remarks:

No remarks were provided by the author.