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Add link and minor format update to 2012/zeitak

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Cody Boone Ferguson committed 2023-05-06 06:15:34 -07:00
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@@ -78,26 +78,26 @@ around it's position.
printf(")"); printf(")");
* Doesn't get confused by the [1984/anonymous](/1984/anonymous/anonymous.c) entry! * Doesn't get confused by the [1984/anonymous](/1984/anonymous/anonymous.c) entry!
#### Mis-Features #### Mis-Features
* Escapes (e.g. `\"`) are ignored, so the following line will produce * Escapes (e.g. `\"`) are ignored, so the following line will produce
an error: an error:
printf("\""); printf("\"");
#### Obfuscation #### Obfuscation
IOCCC winners already contain entries without digits, control-flow [IOCCC winners](/years.html) already contain entries without digits, control-flow
keywords and certain operators in their source. This entry has an keywords and certain operators in their source. This entry has an
even more limited source, that is: even more limited source, that is:
* Without any digits. * Without any digits.
* Without any character constants. * Without any character constants.
* Without using functions from headers other than stdio. * Without using functions from headers other than stdio.
* Without any control-flow keywords (not even the `?:` operator). * Without any control-flow keywords (not even the `?:` operator).
* Without any arithmetic or logic operators! * Without any arithmetic or logic operators!
So, what's left? Parenthesis, and lots of them, as looking at the source will So, what's left? Parenthesis, and lots of them, as looking at the source will
reveal immediately. The main obfuscation is building the whole algorithm using reveal immediately. The main obfuscation is building the whole algorithm using
@@ -105,20 +105,20 @@ only function calls, typecasts, array lookups and pointer operators.
##### Additional obfuscations include: ##### Additional obfuscations include:
* Extensive reuse of identifiers: Macros share names with variables, inner * Extensive reuse of identifiers: Macros share names with variables, inner
curly braces scopes contain variables with names identical to those in the curly braces scopes contain variables with names identical to those in the
outer scopes and some of the variables have different uses in different outer scopes and some of the variables have different uses in different
parts of the program. Even the large array has more than one use. parts of the program. Even the large array has more than one use.
* A complicated data structure with "unused" fields. * A complicated data structure with "unused" fields.
* Mostly one-letter identifiers. * Mostly one-letter identifiers.
* Complex recursion: A function might call itself once, twice, or not at all. * Complex recursion: A function might call itself once, twice, or not at all.
#### Compilation/Portability/Running Notes #### Compilation/Portability/Running Notes
* The program requires `char` to be one byte and pointers to be * The program requires `char` to be one byte and pointers to be
at least two bytes long. at least two bytes long.
* The program was tested on the following platforms: * The program was tested on the following platforms:
- Ubuntu 9.04 32-bit with GCC - Ubuntu 9.04 32-bit with GCC
- Windows 7 32-bit with GCC - Windows 7 32-bit with GCC
- Windows 7 32-bit with OpenWatcom - Windows 7 32-bit with OpenWatcom