From 8d2e20773b426faecb42bdaf7c6df6e2a195c7ea Mon Sep 17 00:00:00 2001 From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com> Date: Fri, 8 Dec 2023 09:00:10 -0800 Subject: [PATCH 1/6] Fix major merge conflicts in thanks file Unfortunately the renaming of the thanks-for-fixes.md to thanks-for-help.md along with other changes with the it caused massive merge conflicts. The file was out of order, there were a lot of >>> lines etc. I had to checkout the old file and update it for the changes I made this morning. Unfortunately this does mean that the anchors are no longer there, relying on markdown to do that instead. That will have to be fixed but I also noticed an error in that too. I am not sure if that's because of the merge conflict or not though. I will have to check that I got everything in order but I think I did as I also added what I had added to it today. --- thanks-for-help.md | 1067 +++++++++++++++++++++----------------------- 1 file changed, 517 insertions(+), 550 deletions(-) diff --git a/thanks-for-help.md b/thanks-for-help.md index 313e15d63..fb3c76ed9 100644 --- a/thanks-for-help.md +++ b/thanks-for-help.md @@ -31,13 +31,13 @@ on a winner by winner basis. # 1984 -## [1984/anonymous](/1984/anonymous/anonymous.c) ([README.md](/1984/anonymous/README.md)) +## [1984/anonymous](1984/anonymous/anonymous.c) ([README.md](1984/anonymous/README.md)) [Cody](#cody) fixed this to work for macOS. -The problem was to do with the way that the `read(/2)` function was redefined. +The problem was to do with the way that the `read(2)` function was redefined. With macOS the second arg needs to be a `void *` and this also necessitated some -casts to `int` (on the second arg) in the call to `write(/2)` (in `read()`). +casts to `int` (on the second arg) in the call to `write(2)` (in `read()`). Later Cody corrected the mistake where the `"hello, world!"` string was on one line rather than two lines which the author told us (Landon) that they liked. @@ -45,16 +45,16 @@ Thus now it is like the original where the first line ends with `"hell\` and the second line starts with `o, world!\n"`. By request, the original code is provided as -[anonymous.alt.c](/1984/anonymous/anonymous.alt.c) so that one can look at it and +[anonymous.alt.c](1984/anonymous/anonymous.alt.c) so that one can look at it and the famous tattoo which we also include here: -![1984-anonymous-tattoo.jpg](/1984/anonymous/1984-anonymous-tattoo.jpg) +![1984-anonymous-tattoo.jpg](1984/anonymous/1984-anonymous-tattoo.jpg) ...which was done in 2005 by [Thomas Scovell](https://web.archive.org/web/20070120220721/https://thomasscovell.com/tattoo.php). -## [1984/decot](/1984/decot/decot.c) ([README.md](/1984/decot/README.md])) +## [1984/decot](1984/decot/decot.c) ([README.md](1984/decot/README.md])) [Cody](#cody) fixed this to not require `-traditional-cpp` which some compilers like clang do not support. Fixing `-traditional-cpp` is, as noted later on, very @@ -119,7 +119,7 @@ cd 1984/decot ; make diff_orig_prog ``` -## [1984/laman](/1984/laman/laman.c) ([README.md](/1984/laman/README.md])) +## [1984/laman](1984/laman/laman.c) ([README.md](1984/laman/README.md])) [Cody](#cody) fixed this to not crash when no arg is specified. Note that if the arg is not a positive number it will not do anything useful or anything at all. @@ -128,19 +128,19 @@ This was fixed on 30 October 2023 after the bug status was changed from INABIAF (it's not a bug it's a feature) to bug. -## [1984/mullender](/1984/mullender/mullender.c) ([README.md](/1984/mullender/README.md])) +## [1984/mullender](1984/mullender/mullender.c) ([README.md](1984/mullender/README.md])) -[Cody](#cody) provided an [alternate version](/1984/mullender/mullender.alt.c), an +[Cody](#cody) provided an [alternate version](1984/mullender/mullender.alt.c), an improved version of the judges, so that everyone can enjoy it with systems that are not VAX/PDP. We also refer you to the [FAQ](faq.md) as there are some winning entries that also let one enjoy it - with more to them of course! Cody further added the second alt version, -[mullender.alt2.c](/1984/mullender/mullender.alt2.c) which is like the -[1984/mullender/mullender.alt.c](/1984/mullender/mullender.alt.c) except that it +[mullender.alt2.c](1984/mullender/mullender.alt2.c) which is like the +[1984/mullender/mullender.alt.c](1984/mullender/mullender.alt.c) except that it starts over after it times out. -Cody also added the [gentab.c](/1984/mullender/gentab.c) file, fixed to compile +Cody also added the [gentab.c](1984/mullender/gentab.c) file, fixed to compile (and work, though see [bugs.md](#1984mullender-readmemd)) with modern systems and so that it would create the proper array (it had unbalanced '}'s), which the author noted in their remarks (which Cody also found). As this file uses the old @@ -153,7 +153,7 @@ Repo](https://github.com/dspinellis/unix-history-repo/tree/Research-Release). # 1985 -## [1985/applin](/1985/applin/applin.c) ([README.md](/1985/applin/README.md])) +## [1985/applin](1985/applin/applin.c) ([README.md](1985/applin/README.md])) Both [Cody](#cody) and [Yusuke](#yusuke) fixed this; Yusuke got this to not crash and Cody fixed it to work with macOS. @@ -177,7 +177,7 @@ why?) but to make it more friendly to users Cody made it print a `\n` prior to returning to the shell. The original version does not have this change. -## [1985/august](/1985/august/august.c) ([README.md](/1985/august/README.md)) +## [1985/august](1985/august/august.c) ([README.md](1985/august/README.md)) [Cody](#cody), out of abundance of caution, added a second arg to `main()` because some versions of clang object to the number of args of `main()`, saying that it must @@ -185,14 +185,14 @@ be 0, 2 or 3. The version this has been observed in does not actually object to 1 arg but it is entirely possible that this changes so a second arg (that's not needed and is unused) has been added just in case. -Cody also added the script [primes.sh](/1985/august/primes.sh) which allows one +Cody also added the script [primes.sh](1985/august/primes.sh) which allows one to check the output for the first N prime numbers of the output, where N is either the default or user specified. The inspiration was the previous 'try' command he gave to have fun with finding primes that might seem unusual in a way. -## [1985/lycklama](/1985/lycklama/lycklama.c) ([README.md](/1985/lycklama/README.md])) +## [1985/lycklama](1985/lycklama/lycklama.c) ([README.md](1985/lycklama/README.md])) [Cody](#cody) fixed this to compile with modern compilers. In the past one could get away with defining some macro to `#define` and then use `#foo` to have the same @@ -203,27 +203,27 @@ changed the `#o` lines to `#define`. Also `unistd.h` had to be `#include`d. that Cody added. See the README.md for details. -## [1985/shapiro](/1985/shapiro/shapiro.c) ([README.md](/1985/shapiro/README.md])) +## [1985/shapiro](1985/shapiro/shapiro.c) ([README.md](1985/shapiro/README.md])) [Cody](#cody) added the alt code which allows one to resize the maze and he also added -the [try.alt.sh](/1985/shapiro/try.alt.sh) script that randomly selects sizes +the [try.alt.sh](1985/shapiro/try.alt.sh) script that randomly selects sizes (five times) and compiles and runs it. After the five runs it prompts you to enter a number, in an infinite loop, exiting if any non-digits are in input (this includes negative numbers which in the code actually sets it back to 39, the default). -## [1985/sicherman](/1985/sicherman/sicherman.c) ([README.md](/1985/sicherman/README.md])) +## [1985/sicherman](1985/sicherman/sicherman.c) ([README.md](1985/sicherman/README.md])) [Cody](#cody) fixed this _very twisted entry_ to not require `-traditional-cpp`. Fixing `-traditional-cpp` is, as noted later on, very complicated, but Cody would like to refer you to the original file -[sicherman.orig.c](/1985/sicherman/sicherman.orig.c) and he suggests that you -then compare it to [sicherman.c](/1985/sicherman/sicherman.c) for some good old +[sicherman.orig.c](1985/sicherman/sicherman.orig.c) and he suggests that you +then compare it to [sicherman.c](1985/sicherman/sicherman.c) for some good old C-fashioned fun (alternatively, see below explanation)! Later on Cody improved the fix so that it looks much more like the [original -entry](/1985/sicherman/sicherman.c). He did this several more times and it's +entry](1985/sicherman/sicherman.c). He did this several more times and it's as close to the original as one can get without causing compiler errors. To get this to all work the following changes were made. If you really want to @@ -252,12 +252,12 @@ were actually not what they appear: the only arg that existed in `main()` was - The macros `C` and `V` were changed to lower case. This is because it felt like the `C=" ..`' part in `subr()` would be better to be upper case as it talks about the language. Also in the second [alternate -version](/1985/sicherman/sicherman.alt2.c) (the first being the +version](1985/sicherman/sicherman.alt2.c) (the first being the original code) which is in case a new version of clang ever objects to only one arg in `main()` (which is not out of the realm of possibility), `main()` can have `C` as `argc` to `main()` so it would read like it once did: `C manual` albeit with a `,` separating the two. The [second -alternate](/1985/sicherman/sicherman.alt2.c) version is compiled +alternate](1985/sicherman/sicherman.alt2.c) version is compiled in case the first does not. Originally the macros were kept the same and the `C` in `subr()` was `c`. It feels better (in some ways) to make it so that the `C` for the language is upper case though, and since it actually translated to @@ -322,12 +322,12 @@ case as `c`. # 1986 -## [1986/hague](/1986/hague/hague.c) ([README.md](/1986/hague/README.md])) +## [1986/hague](1986/hague/hague.c) ([README.md](1986/hague/README.md])) [Cody](#cody) made this use `fgets()`. -## [1986/holloway](/1986/holloway/holloway.c) ([README.md](/1986/holloway/README.md])) +## [1986/holloway](1986/holloway/holloway.c) ([README.md](1986/holloway/README.md])) [Cody](#cody) fixed this to compile and work with clang (it already worked with gcc). The problem was that clang is more strict about the type of second arg to @@ -337,7 +337,7 @@ and then using `t` instead of `s` it compiles and runs successfully under clang and gcc. -## [1986/marshall](/1986/marshall/marshall.c) ([README.md](/1986/marshall/README.md])) +## [1986/marshall](1986/marshall/marshall.c) ([README.md](1986/marshall/README.md])) [Cody](#cody) got this to compile and work with clang and gcc. He noted that he tried to keep the ASCII art as close to the original as possible. The line lengths are @@ -345,7 +345,7 @@ the same but some spaces had to be changed to non-spaces. This fix was very interesting and quite amusing, showing up problems with two different compilers. This is a brief summary but much more is explained in the -[compilers.md](/1986/marshall/compilers.md) file, giving which compilers had +[compilers.md](1986/marshall/compilers.md) file, giving which compilers had which problems in which systems: the optimiser being enabled in one compiler let it work but broke it in the other; and disabling it would let it work in the one that didn't work but suddenly the one that worked wouldn't work. And by 'not @@ -356,29 +356,29 @@ This problem was only after getting clang to compile, of course. It did not compile it because it is more strict about the second and third args to `main()` and the third arg was an `int`. -We encourage you to read the [compilers.md](/1986/marshall/compilers.md) file to +We encourage you to read the [compilers.md](1986/marshall/compilers.md) file to see how odd this problem was and what Cody did to fix it, if nothing else but for entertainment! -## [1986/pawka](/1986/pawka/pawka.c) ([README.md](/1986/pawka/README.md)) +## [1986/pawka](1986/pawka/pawka.c) ([README.md](1986/pawka/README.md)) [Cody](#cody) noticed and fixed a funny mistake in the Makefile where a `-Wno-strict-prototypes` was in the wrong location, suggesting that there is a `-D` needed to compile the entry. -## [1986/wall](/1986/wall/wall.c) ([README.md](/1986/wall/README.md])) +## [1986/wall](1986/wall/wall.c) ([README.md](1986/wall/README.md])) [Cody](#cody) fixed this so that it does not require `-traditional-cpp`. This took a fair bit of tinkering as this entry *very twisted*; fixing `-traditional-cpp` is, as noted earlier, very complicated, but we encourage you to look at [original -code](/1986/wall/wall.orig.c) to see how different C was in 1986, as well as +code](1986/wall/wall.orig.c) to see how different C was in 1986, as well as below. [Yusuke](#yusuke) originally patched this to use `strdup()` on two strings and this let it work with gcc but it still required `-traditional-cpp`. The [alternate -code](/1986/wall/wall.alt.c) is the version patched by Yusuke should you wish to +code](1986/wall/wall.alt.c) is the version patched by Yusuke should you wish to try it with a compiler that has the `-traditional-cpp`. See the README.md file for details. @@ -458,7 +458,7 @@ Some of the changes required: # 1987 -## [1987/heckbert](/1987/heckbert/heckbert.c) ([README.md](/1987/heckbert/README.md)) +## [1987/heckbert](1987/heckbert/heckbert.c) ([README.md](1987/heckbert/README.md)) [Cody](#cody) made this look more like the original entry by restoring the `#define` of `define`. It's not used but it now looks closer to the original. @@ -469,7 +469,7 @@ that for System V we had to do this) Cody added to the Makefile `-Dindex=strchr`. -## [1987/lievaart](/1987/lievaart/lievaart.c) ([README.md](/1987/lievaart/README.md)) +## [1987/lievaart](1987/lievaart/lievaart.c) ([README.md](1987/lievaart/README.md)) [Cody](#cody) added back the documented checks for invalid input which no longer worked and instead resulted in either accepting the level, whether or not it was a @@ -514,12 +514,12 @@ well (the one with the board and the one without, the entry itself with the size constraints of the contest). -## [1987/wall](/1987/wall/wall.c) ([README.md](/1987/wall/README.md])) +## [1987/wall](1987/wall/wall.c) ([README.md](1987/wall/README.md])) [Cody](#cody) made this use `fgets(3)`. -## [1987/westley](/1987/westley/westley.c) ([README.md](/1987/westley/README.md])) +## [1987/westley](1987/westley/westley.c) ([README.md](1987/westley/README.md])) [Cody](#cody) fixed this for modern systems. The problem was `'assignment to cast is illegal, lvalue casts are not supported'`. For the original file see the @@ -537,7 +537,7 @@ unlikely(?) but nevertheless suggested case that `putchar()` is not available. # 1988 -## [1988/dale](/1988/dale/dale.c) ([README.md](/1988/dale/README.md])) +## [1988/dale](1988/dale/dale.c) ([README.md](1988/dale/README.md])) [Cody](#cody) fixed this twisted entry (as we called it :-) ) for modern compilers, including making it no longer require `-traditional-cpp`. Fixing @@ -615,21 +615,21 @@ See the README.md file for details on the original code, provided as an alt version in case you have an older compiler or wish to try `-traditional-cpp`. -## [1988/isaak](/1988/isaak/isaak.c) ([README.md](/1988/isaak/README.md])) +## [1988/isaak](1988/isaak/isaak.c) ([README.md](1988/isaak/README.md])) [Cody](#cody) fixed this to work for modern systems. The problem was that the important function, a redefinition of `exit()`, was not being called in `main()`. The -original version is in [1988/isaak/isaak.alt.c](/1988/isaak/isaak.alt.c). See the +original version is in [1988/isaak/isaak.alt.c](1988/isaak/isaak.alt.c). See the README.md file for more details. -## [1988/litmaath](/1988/litmaath/litmaath.c) ([README.md](/1988/litmaath/README.md)) +## [1988/litmaath](1988/litmaath/litmaath.c) ([README.md](1988/litmaath/README.md)) [Cody](#cody) added the alt code which is code that we suggested at the time of publication, in the remarks, to help understand the entry, and for fun. -## [1988/phillipps](/1988/phillipps/phillipps.c) ([README.md](/1988/phillipps/README.md])) +## [1988/phillipps](1988/phillipps/phillipps.c) ([README.md](1988/phillipps/README.md])) [Cody](#cody) fixed this for modern systems. It did not compile with clang because it requires the second and third args of `main()` to be `char **` but even before @@ -648,14 +648,14 @@ same code. Additionally, `main()` returns `!pain(...)` like `main()` used to do to itself and `pain()` does now. -## [1988/reddy](/1988/reddy/reddy.c) ([README.md](/1988/reddy/README.md)) +## [1988/reddy](1988/reddy/reddy.c) ([README.md](1988/reddy/README.md)) [Cody](#cody) made this use `fgets(3)`. -## [1988/spinellis](/1988/spinellis/spinellis.c) ([README.md](/1988/spinellis/README.md])) +## [1988/spinellis](1988/spinellis/spinellis.c) ([README.md](1988/spinellis/README.md])) -[Cody](#cody) provided an [alternate version](/1988/spinellis/spinellis.alt.c) so that +[Cody](#cody) provided an [alternate version](1988/spinellis/spinellis.alt.c) so that this will work with compilers like clang. An alternate version had to be provided because not doing so would be tampering with the entry too much. It would work but it would not show the same creativity and cleverness. @@ -669,9 +669,9 @@ doing this) that with a slight modification this entry can be C++ instead. We do thank him for this ghastly point! :-) -## [1988/westley](/1988/westley/westley.c) ([README.md](/1988/westley/README.md])) +## [1988/westley](1988/westley/westley.c) ([README.md](1988/westley/README.md])) -The [original version](/1988/westley/westley.alt.c), provided as alternate code, +The [original version](1988/westley/westley.alt.c), provided as alternate code, was fixed by Misha Dynin, based on the judges' remarks, so that this would work with modern C compilers. We encourage you to try the alternate version to see what happens with current compilers! See the README.md files for details. @@ -679,7 +679,7 @@ what happens with current compilers! See the README.md files for details. [Cody](#cody) changed the `int`s to be `float` as that's what they are printed as: not strictly necessary but nonetheless more correct, even if not warned against. -Cody added the [try.sh](/1988/westley/try.sh) script to show the magic of the +Cody added the [try.sh](1988/westley/try.sh) script to show the magic of the entry as seeing the code with the result at once is far more beautiful. @@ -687,17 +687,17 @@ entry as seeing the code with the result at once is far more beautiful. # 1989 -## [1989/fubar](/1989/fubar/fubar.c) ([README.md](/1989/fubar/README.md])) +## [1989/fubar](1989/fubar/fubar.c) ([README.md](1989/fubar/README.md])) [Cody](#cody) got this to work with modern systems. The main issues were that an `#include` had to be added along with fixing the path (due to `.` not being in `$PATH`) to files referred to in the code. -## [1989/jar.1](/1989/jar.1/jar.1.c) ([README.md](/1989/jar.1/README.md])) +## [1989/jar.1](1989/jar.1/jar.1.c) ([README.md](1989/jar.1/README.md])) To prevent annoying output to `/dev/tty` we changed the code to simulate the -output via `strings(/1)` but [Cody](#cody) removed the ill-famed `useless use of cat` to +output via `strings(1)` but [Cody](#cody) removed the ill-famed `useless use of cat` to shut [ShellCheck](https://github.com/koalaman/shellcheck) up. Why is it ill-famed? Because there is no such thing as a useless cat, that's why! For instance, the fact they even exist is proof that @@ -711,7 +711,7 @@ anyway, and since one may still run the code or the script (for the original entry and the alt code) anyway, it works out well. -## [1989/jar.2](/1989/jar.2/jar.2.c) ([README.md](/1989/jar.2/README.md])) +## [1989/jar.2](1989/jar.2/jar.2.c) ([README.md](1989/jar.2/README.md])) [Cody](#cody) fixed this to work with modern compilers. Modern compilers do not allow code like: @@ -727,39 +727,39 @@ code like: He notes that there _is_ a way to get it (or something close to it) to work. Do you know how? -Cody also provided the [try.sh](/1989/jar.2/try.sh) script and the -supplementary files [try.txt](/1989/jar.2/try.txt), -[fib.lisp](/1989/jar.2/fib.lisp) and -[chocolate_cake.lisp](/1989/jar.2/chocolate_cake.lisp). The `try.txt` comes +Cody also provided the [try.sh](1989/jar.2/try.sh) script and the +supplementary files [try.txt](1989/jar.2/try.txt), +[fib.lisp](1989/jar.2/fib.lisp) and +[chocolate_cake.lisp](1989/jar.2/chocolate_cake.lisp). The `try.txt` comes from the author and the `fib.lisp` comes from [Yusuke](#yusuke). Cody wrote the script and offered us some chocolate cake :-) See README.md for details on how to use the script. -## [1989/ovdluhe](/1989/ovdluhe/ovdluhe.c) ([README.md](/1989/ovdluhe/README.md])) +## [1989/ovdluhe](1989/ovdluhe/ovdluhe.c) ([README.md](1989/ovdluhe/README.md])) [Cody](#cody) fixed an infinite loop where the program would print the same thing over and over again, flooding the screen. The problem is that there was a `for` loop that by necessity had to not have an increment stage but only in the `if` path (in the loop itself) did the pointer get updated. -Cody also provided an [alternate version](/1989/ovdluhe/ovdluhe.alt.c) based on the +Cody also provided an [alternate version](1989/ovdluhe/ovdluhe.alt.c) based on the author's remarks. See the README.md for details. The fix described above was fixed in this version too, after it was discovered and fixed. -## [1989/paul](/1989/paul/paul.c) ([README.md](/1989/paul/README.md])) +## [1989/paul](1989/paul/paul.c) ([README.md](1989/paul/README.md])) [Cody](#cody) fixed a segfault under macOS that prevented it from working. The problem was that the int (from `#define f`) should be a long. This became apparent when he was using lldb and saw that the type of a pointer was too `long` :-) -Cody also provided the [alternate version](/1989/paul/paul.alt.c) +Cody also provided the [alternate version](1989/paul/paul.alt.c) which has the trace function that the author included but commented out. See the README.md for details. -## [1989/robison](/1989/robison/robison.c) ([README.md](/1989/robison/README.md])) +## [1989/robison](1989/robison/robison.c) ([README.md](1989/robison/README.md])) [Yusuke Endoh](#yusuke) fixed this to compile under modern systems. To see the changes made, try: @@ -772,7 +772,7 @@ cd 1989/robison ; make diff_orig_prog (It adds the C token pasting operator `##` instead of `/**/`.) -## [1989/tromp](/1989/tromp/tromp.c) ([README.md](/1989/tromp/README.md])) +## [1989/tromp](1989/tromp/tromp.c) ([README.md](1989/tromp/README.md])) [Cody](#cody) and [Yusuke](#yusuke) fixed this entry: Yusuke fixed this to compile with gcc and Cody fixed it for clang and made some other fixes as well. @@ -801,7 +801,7 @@ IOCCC [Tetris](https://en.wikipedia.org/wiki/Tetris) working (this of course was not his only reason :-) ) -## [1989/westley](/1989/westley/westley.c) ([README.md](/1989/westley/README.md])) +## [1989/westley](1989/westley/westley.c) ([README.md](1989/westley/README.md])) [Cody](#cody) fixed this for clang, except that two versions generated by the program cannot be compiled by clang due to inherent defects in the compiler and how the @@ -862,10 +862,10 @@ in the working on version 2 and 3 or if in the fix for clang as well as version To make use of this several scripts were added by Cody. -The [compile.sh](/1989/westley/compile.sh) script that removes the generated +The [compile.sh](1989/westley/compile.sh) script that removes the generated code, rebuilds the program and regenerates the other code and then compiles it will work for compilers like gcc and one can then use the -[try.sh](/1989/westley/try.sh) script to see example input and output. +[try.sh](1989/westley/try.sh) script to see example input and output. The `compile.sh` script allows one to specify the compiler with the `CC` environmental variable; see the README.md for details. @@ -874,9 +874,9 @@ environmental variable; see the README.md for details. # 1990 -## [1990/baruch](/1990/baruch/baruch.c) ([README.md](/1990/baruch/README.md])) +## [1990/baruch](1990/baruch/baruch.c) ([README.md](1990/baruch/README.md])) -[Cody](#cody) added an [alternate version](/1990/baruch/baruch.alt.c) which allows Turbo-C +[Cody](#cody) added an [alternate version](1990/baruch/baruch.alt.c) which allows Turbo-C and MSC to compile this code, based on the authors' remarks, except that Cody did not change the `" #Q"` string as that showed worse looking output instead of improved output though he has no way to test the compilers in @@ -892,7 +892,7 @@ the variables, adding instead `-Wno-implicit-int`. The newline added by the judges was retained. -## [1990/cmills](/1990/cmills/cmills.c) ([README.md](/1990/cmills/README.md])) +## [1990/cmills](1990/cmills/cmills.c) ([README.md](1990/cmills/README.md])) [Yusuke](#yusuke) got this to work in modern systems (it previously resulted in a bus error). @@ -900,7 +900,7 @@ error). [Cody](#cody) made this use `fgets(3)`. -## [1990/dds](/1990/dds/dds.c) ([README.md](/1990/dds/README.md])) +## [1990/dds](1990/dds/dds.c) ([README.md](1990/dds/README.md])) [Yusuke](#yusuke) and [Cody](#cody) in conjunction fixed this for modern systems (both fixed a different compiler error but more fixes were also made). @@ -912,12 +912,12 @@ operator itself. Cody fixed another compiler error by removing the erroneous prototype to `fopen()`. Cody also changed a `char *` used for file I/O to be a proper `FILE -*` and fixed a typo in [LANDER.BAS](/1990/dds/LANDER.BAS). +*` and fixed a typo in [LANDER.BAS](1990/dds/LANDER.BAS). Cody also made this use `fgets(3)`. -## [1990/dg](/1990/dg/dg.c) ([README.md](/1990/dg/README.md])) +## [1990/dg](1990/dg/dg.c) ([README.md](1990/dg/README.md])) [Cody](#cody) fixed this for modern systems. There were two problems to be resolved. @@ -938,7 +938,7 @@ The second problem was suggested by the judges at the time of judging, to do with if the C preprocessor botches single quotes in cpp expansion. -## [1990/jaw](/1990/jaw/jaw.c) ([README.md](/1990/jaw/README.md])) +## [1990/jaw](1990/jaw/jaw.c) ([README.md](1990/jaw/README.md])) [Cody](#cody) fixed the script to work properly in modern environments including writing to and extracting from `stdout` and relying on the exit code in the commands to @@ -947,7 +947,7 @@ allow for `&& ...`. He also changed the `perror(3)` call to `fprintf(3)` because in macOS when errno is 0 it shows what looks like an error. -He added the [try.sh](/1990/jaw/try.sh) to run the commands that we suggested at +He added the [try.sh](1990/jaw/try.sh) to run the commands that we suggested at the time. NOTE: as `btoa` is not common we used a ruby script from [Yusuke](#yusuke) but with a minor @@ -955,20 +955,20 @@ fix applied by Cody that made the program just show `oops` twice from invalid input but which now works. -## [1990/pjr](/1990/pjr/pjr.c) ([README.md](/1990/pjr/README.md])) +## [1990/pjr](1990/pjr/pjr.c) ([README.md](1990/pjr/README.md])) -[Cody](#cody) added the [alt code](/1990/pjr/pjr.alt.c) which was suggested by the judges +[Cody](#cody) added the [alt code](1990/pjr/pjr.alt.c) which was suggested by the judges in the case that your compiler cannot compile `X=g()...` but it actually does something else and is recommended by the author as well. -## [1990/scjones](/1990/scjones/scjones.c) ([README.md](/1990/scjones/README.md])) +## [1990/scjones](1990/scjones/scjones.c) ([README.md](1990/scjones/README.md])) [Yusuke](#yusuke) suggested `-ansi` to get the entry to compile due to trigraphs and [Cody](#cody) suggested `-trigraphs`. Both work but we used Yusuke's idea. -## [1990/tbr](/1990/tbr/tbr.c) ([README.md](/1990/tbr/README.md])) +## [1990/tbr](1990/tbr/tbr.c) ([README.md](1990/tbr/README.md])) [Cody](#cody) fixed this to work with modern compilers; `exit(3)` returns void but the function was used in a binary expression so this wouldn't even compile. @@ -982,11 +982,11 @@ Additionally, Cody fixed the shortened version provided by the author in the same way as the original entry, first the compile fix and then later on making it look more like the original by redefining `exit` and also redefining `gets()` to be `fgets()` in the same way that the original entry is. This way the [alt -version](/1990/tbr/README.md#alternate-code) is equivalent in function, like the +version](1990/tbr/README.md#alternate-code) is equivalent in function, like the author intended, but more compact. -## [1990/theorem](/1990/theorem/theorem.c) ([README.md](/1990/theorem/README.md])) +## [1990/theorem](1990/theorem/theorem.c) ([README.md](1990/theorem/README.md])) [Cody](#cody) fixed this to compile with modern systems. @@ -1024,7 +1024,7 @@ used in order to get this to work initially (prior to this output was there but incomplete). -## [1990/stig](/1990/stig/stig.c) ([README.md](/1990/stig/README.md)) +## [1990/stig](1990/stig/stig.c) ([README.md](1990/stig/README.md)) [Cody](#cody) fixed the paths in the Makefile so that this would build in Linux (it worked fine in macOS). @@ -1033,11 +1033,11 @@ He also changed the Makefile to use `bash` not `zsh` as not all systems have `zsh` and the Makefile actually sets `SHELL` to `bash`. -## [1990/westley](/1990/westley/westley.c) ([README.md](/1990/westley/README.md])) +## [1990/westley](1990/westley/westley.c) ([README.md](1990/westley/README.md])) [Cody](#cody) fixed this for modern systems. It had `1s` in places for a short int which was changed to just `1`. Since it's instructional to see the differences he has -provided an alternate version, [westley.alt.c](/1990/westley/westley.alt.c), which +provided an alternate version, [westley.alt.c](1990/westley/westley.alt.c), which is the original code. He also changed the `argc` to be an `int`, not a `char`, even though it might @@ -1053,9 +1053,9 @@ original code. # 1991 -## [1991/ant](/1991/ant/ant.c) ([README.md](/1991/ant/README.md])) +## [1991/ant](1991/ant/ant.c) ([README.md](1991/ant/README.md])) -[Cody](#cody) added [alt code](/1991/ant/ant.alt.c) that will be a bit easier to use for +[Cody](#cody) added [alt code](1991/ant/ant.alt.c) that will be a bit easier to use for those familiar with vim in the following ways: - Use `0` to go to first column. @@ -1068,7 +1068,7 @@ those familiar with vim in the following ways: The other keys were left unchanged. -## [1991/brnstnd](/1991/brnstnd/brnstnd.c) ([README.md](/1991/brnstnd/README.md])) +## [1991/brnstnd](1991/brnstnd/brnstnd.c) ([README.md](1991/brnstnd/README.md])) [Cody](#cody) fixed this for modern systems. There were two invalid operands to binary expression (`char *` and `void` and `int` and `void`) to resolve and @@ -1081,7 +1081,7 @@ Later on, Cody added back the macro `#define D define` to make it look ever so slightly more like the original, even though it's unused. -## [1991/buzzard](/1991/buzzard/buzzard.c) ([README.md](/1991/buzzard/README.md])) +## [1991/buzzard](1991/buzzard/buzzard.c) ([README.md](1991/buzzard/README.md])) [Cody](#cody) fixed this so that the coordinates being specified would not crash the program. This happened because the function that calls `atoi(3)` took an arg @@ -1092,13 +1092,13 @@ Cody also made the file name in the code (which is the default maze file) not hard-coded but instead be `__FILE__`. Finally Cody added the [alternate -version](/1991/buzzard/README.md#alternate-code) which will possibly feel more at +version](1991/buzzard/README.md#alternate-code) which will possibly feel more at home with those familiar with vi(m) (it certainly does feel more at home with him): `k` for forward, `h` for left and `l` for right. This version also has a more useful way to exit, just entering `q` followed by enter. -## [1991/davidguy](/1991/davidguy/davidguy.c) ([README.md](/1991/davidguy/README.md])) +## [1991/davidguy](1991/davidguy/davidguy.c) ([README.md](1991/davidguy/README.md])) As some systems like macOS can be particular about not declaring functions [Cody](#cody) added to the Makefile some `-include` options. These appear to not be strictly @@ -1106,7 +1106,7 @@ necessary but it was done due to other syscalls being a problem not being declared first. -## [1991/dds](/1991/dds/dds.c) ([README.md](/1991/dds/README.md])) +## [1991/dds](1991/dds/dds.c) ([README.md](1991/dds/README.md])) [Cody](#cody) fixed a segfault that prevented this entry from working in any condition and he also made it work for clang. He also added checks for NULL `FILE *`s. @@ -1235,7 +1235,7 @@ was pondered and changed numerous times and ultimately that problem with this entry was fixed. It has not been done in all. -## [1991/fine](/1991/fine/fine.c) ([README.md](/1991/fine/README.md)) +## [1991/fine](1991/fine/fine.c) ([README.md](1991/fine/README.md)) [Cody](#cody) made it look much more like the original entry even after the fix that increased the count in characters from 80 to 106, getting it back down to just @@ -1252,13 +1252,13 @@ which also resolved the warning described above. This was by more clever use of the Makefile which now has a `-DB=(int)b` so that `B` can be used in place where `(int)b` used to be necessary. -Cody also added the [try.sh](/1991/fine/try.sh) script which feeds the program +Cody also added the [try.sh](1991/fine/try.sh) script which feeds the program some fun input for fun but mostly different output. He added a great string from Brian Westley and Cody also added several of his own (can you figure out exactly which ones? :-) ) -## [1991/rince](/1991/rince/rince.c) ([README.md](/1991/rince/README.md)) +## [1991/rince](1991/rince/rince.c) ([README.md](1991/rince/README.md)) [Cody](#cody) fixed it so that the messages that show if you won or lost will be seen after the end of the game. The reason it did not work before is curses was ended @@ -1267,13 +1267,13 @@ original entry Cody left the message before ending curses in and printed another message of the same kind after `endwin()` was called with the exception that he added a newline at the end of the screen to be more user friendly. -Cody also added [two alt versions](/1991/rince/README.md#alternate-code), one to +Cody also added [two alt versions](1991/rince/README.md#alternate-code), one to remove the maximum number of moves you may make and another to let you configure the maximum number of moves, even if that is making it harder to win. Naturally the above fix was applied to these versions too. -## [1991/westley](/1991/westley/westley.c) ([README.md](/1991/westley/README.md])) +## [1991/westley](1991/westley/westley.c) ([README.md](1991/westley/README.md])) [Cody](#cody) fixed a segfault in this program which prevented it from working. The problem was that the read-only char array `char *z[]` was being written to. The @@ -1298,7 +1298,7 @@ should have been removed. # 1992 -## [1992/adrian](/1992/adrian/adrian.c) ([README.md](/1992/adrian/README.md])) +## [1992/adrian](1992/adrian/adrian.c) ([README.md](1992/adrian/README.md])) [Cody](#cody) fixed the code so that it will try opening the file the code was compiled from (`__FILE__`), not `adgrep.c`, as the latter does not exist: `adgrep` is @@ -1313,14 +1313,14 @@ was never fixed in any of the files, not the code or the documentation, and thus was entirely incorrect code. A fun fact is that one can do: ```c -W= fopen(wc>= 2 ? V[1] : __FILE__,"rt");if(!W)exit(/1); +W= fopen(wc>= 2 ? V[1] : __FILE__,"rt");if(!W)exit(1); ``` but one _CANNOT_ do: ```c -W= fopen(wc>= 2 ? V[1] : __FILE__,"rt");if(!W)exit(/1); -if (W==NULL)exit(/1); +W= fopen(wc>= 2 ? V[1] : __FILE__,"rt");if(!W)exit(1); +if (W==NULL)exit(1); ``` because `adwc.c` will be empty! The difference is it is on a newline, the check. @@ -1368,7 +1368,7 @@ These fixes are complex changes due to the way the program and Makefile generate the additional tools. -## [1992/albert](/1992/albert/albert.c) ([README.md](/1992/albert/README.md])) +## [1992/albert](1992/albert/albert.c) ([README.md](1992/albert/README.md])) [Cody](#cody) fixed this to compile with modern systems. Note that in 1996 a bug fix was applied to the code, provided as the alt code as that version is not obfuscated. @@ -1378,7 +1378,7 @@ is not the correct header file now (at least in some systems?) and a non-void return void. -## [1992/ant](/1992/ant/ant.c) ([README.md](/1992/ant/README.md])) +## [1992/ant](1992/ant/ant.c) ([README.md](1992/ant/README.md])) [Cody](#cody) fixed the Makefile so that the program will actually work with it (or at least the rule to clobber files and link `am` to `ant`). The issue was that the @@ -1397,18 +1397,18 @@ The author stated that in some systems like DOS with Turbo C, it might be necessary to include `time.h` so Cody did this as well. -## [1992/buzzard.1](/1992/buzzard.1/buzzard.1.c) ([README.md](/1992/buzzard.1/README.md)) +## [1992/buzzard.1](1992/buzzard.1/buzzard.1.c) ([README.md](1992/buzzard.1/README.md)) -[Cody](#cody) added a check for the right number of args, exiting 1 if not enough (/2) +[Cody](#cody) added a check for the right number of args, exiting 1 if not enough (2) used. This was not originally done but at a time it was changed to be considered a bug so it was fixed at that point as it only took a few seconds and had to be verified that it was consistent with the [bugs.md](/bugs.md) file. -He also added the [try.sh](/1991/buzzard.1/try.sh) script to try out some +He also added the [try.sh](1991/buzzard.1/try.sh) script to try out some commands that we suggested and some additional ones that provide for some fun. -## [1992/gson](/1992/gson/gson.c) ([README.md](/1992/gson/README.md])) +## [1992/gson](1992/gson/gson.c) ([README.md](1992/gson/README.md])) [Cody](#cody) fixed a crash that prevented this entry from working in some cases in some systems (like macOS) by disabling the optimiser in the Makefile. @@ -1427,28 +1427,28 @@ redirecting a dictionary file as part of the command line. This also makes it possible for longer strings to be read (in case the `gets(3)` was not used in a loop). -Cody also added the [mkdict.sh](/1992/gson/mkdict.sh) script that the author +Cody also added the [mkdict.sh](1992/gson/mkdict.sh) script that the author included in their remarks. See the README.md for its purpose. It was NOT fixed for [ShellCheck](https://github.com/koalaman/shellcheck) because the author deliberately obfuscated it so **PLEASE DO NOT FIX THIS**. -## [1992/imc](/1992/imc/imc.c) ([README.md](/1992/imc/README.md])) +## [1992/imc](1992/imc/imc.c) ([README.md](1992/imc/README.md])) -The original code, [imc.orig.c](/1992/imc/imc.orig.c), assumed that `exit(3)` +The original code, [imc.orig.c](1992/imc/imc.orig.c), assumed that `exit(3)` returned a value but this will cause problems where `exit(3)` returns void. The source code was modified to avoid this problem but like [Cody](#cody) did with other fixes he made this more like the original by redefining `exit` to use the comma operator so that it could be used in binary expressions. -## [1992/kivinen](/1992/kivinen/kivinen.c) ([README.md](/1992/kivinen/README.md])) +## [1992/kivinen](1992/kivinen/kivinen.c) ([README.md](1992/kivinen/README.md])) It was observed that on modern systems this goes much too quick. [Yusuke](#yusuke) created a patch that calls `usleep(3)` but [Cody](#cody) thought the value was too slow so he made it a macro in the Makefile `Z`, defaulting at 15000. This was made an [alt -version](/1992/kivinen/kivinen.alt.c) and it is recommended one use the alt +version](1992/kivinen/kivinen.alt.c) and it is recommended one use the alt version first. See the README.md file to see how to reconfigure it. Cody also made the fixed version (the code relied on `exit(3)` returning to use @@ -1468,7 +1468,7 @@ Yusuke also noted that there is a bug in the program where right after starting it moves towards the right but if you click the mouse it goes back. -## [1992/lush](/1992/lush/lush.c) ([README.md](/1992/lush/README.md])) +## [1992/lush](1992/lush/lush.c) ([README.md](1992/lush/README.md])) [Yusuke](#yusuke) supplied a patch which makes this work with gcc. Due to how it works (see Judges' remarks in the README.md file) this will not work with clang. @@ -1482,31 +1482,31 @@ NOTE: this entry cannot work with clang due to different compiler messages. See [bugs.md](/bugs.md) for details. -## [1992/marangon](/1992/marangon/marangon.c) ([README.md](/1992/marangon/README.md)) +## [1992/marangon](1992/marangon/marangon.c) ([README.md](1992/marangon/README.md)) [Cody](#cody) made this more portable by changing the `void main()` to be `int main()`. -## [1992/nathan](/1992/nathan/nathan.c) ([README.md](/1992/nathan/README.md)) +## [1992/nathan](1992/nathan/nathan.c) ([README.md](1992/nathan/README.md)) [Cody](#cody) added the original file back as it was deemed that the export restrictions should no longer be a cause of concern for this entry. Doing this did require a -change to Cody's [2020/ferguson2](/2020/ferguson2/README.md) entry as it's +change to Cody's [2020/ferguson2](2020/ferguson2/README.md) entry as it's referenced. Cody cynically noted that if he goes quiet, for instance if he no longer participates in the IOCCC, that it must be our fault! :-) -Cody also added the [try.sh](/1992/nathan/try.sh) script that runs a few commands +Cody also added the [try.sh](1992/nathan/try.sh) script that runs a few commands that we suggested as well as one he provided. -## [1992/vern](/1992/vern/vern.c) ([README.md](/1992/vern/README.md])) +## [1992/vern](1992/vern/vern.c) ([README.md](1992/vern/README.md])) [Cody](#cody) fixed an infinite loop if one were to input numbers < `0` or > `077`. The problem was that it tried to use `scanf(3)` with the format specifier `"%o %o"` in a loop, reading again if `scanf(3)` did not return 2 (that was not a problem in -that `scanf(/2)` will not return until the number of specifiers have been +that `scanf(2)` will not return until the number of specifiers have been processed or some error occurs) or a function it called returned non-zero. Instead the fix involves the `scanf(3)` specifiers being `"%4s %4s" on two @@ -1515,7 +1515,7 @@ new char arrays (always cleared in the beginning of the loop) and then using both numbers (using `"%o %o"` does not solve the problem). -## [1992/westley](/1992/westley/westley.c) ([README.md](/1992/westley/README.md])) +## [1992/westley](1992/westley/westley.c) ([README.md](1992/westley/README.md])) [Cody](#cody) fixed this to work for clang by changing the third and fourth arg of `main()` to be `char **` inside `main()`; clang requires args 2 - 4 to be `char @@ -1536,12 +1536,12 @@ the final loop it prints another newline. This fix has another bonus in that resizing the terminal after running it should not mess up the display either, unless of course it becomes too small. -Cody added the scripts [whereami.sh](/1992/westley/whereami.sh) and -[whereami.alt.sh](/1992/westley/whereami.alt.sh) which correspond to the entry and +Cody added the scripts [whereami.sh](1992/westley/whereami.sh) and +[whereami.alt.sh](1992/westley/whereami.alt.sh) which correspond to the entry and the alt code but first check that the number of columns is at least 80 and if not it is an error. -Cody added the [try.sh](/1992/westley/try.sh) script that shows the different +Cody added the [try.sh](1992/westley/try.sh) script that shows the different cities that the author recommended one try as well as the one recommended by the judges (approximate judging location), labelling each city and printing a newline before the next city. The try.sh script uses the `whereami.sh` and @@ -1551,18 +1551,18 @@ first tries to make it executable and if it fails to do so it just uses (or `COLUMNS=80 ./whereami.sh` etc.) but this is a feature, not a bug. Cody also added an arg check because the program and the -[alternate version](/1992/westley/westley.alt.c) might have crashed or +[alternate version](1992/westley/westley.alt.c) might have crashed or [nuked](https://en.wikipedia.org/wiki/Nuclear_weapon) the [entire world](https://en.wikipedia.org/wiki/Earth) or just the [USA](https://en.wikipedia.org/wiki/United_States), respectively, without enough -args (/2). And not that we need the help or anything for this :-) but we +args (2). And not that we need the help or anything for this :-) but we encourage you to try the original without two args :-) # 1993 -## [1993/cmills](/1993/cmills/cmills.c) ([README.md](/1993/cmills/README.md])) +## [1993/cmills](1993/cmills/cmills.c) ([README.md](1993/cmills/README.md])) [Yusuke](#yusuke) suggested that with modern systems this goes too fast so he added a call to `usleep(3)` in a patch he made. [Cody](#cody) made it configurable at compilation by @@ -1570,12 +1570,12 @@ using a macro. This is in the alt version which is the recommended one to try first. -## [1993/dgibson](/1993/dgibson/dgibson.c) ([README.md](/1993/dgibson/README.md])) +## [1993/dgibson](1993/dgibson/dgibson.c) ([README.md](1993/dgibson/README.md])) [Cody](#cody) fixed the script to work which assumed that `.` is in the path. -## [1993/jonth](/1993/jonth/jonth.c) ([README.md](/1993/jonth/README.md])) +## [1993/jonth](1993/jonth/jonth.c) ([README.md](1993/jonth/README.md])) Both [Cody](#cody) and [Yusuke](#yusuke) fixed this so that it will work with modern systems. Yusuke provided some fixes of the X code and Cody fixed the C pre-processor directives @@ -1591,32 +1591,32 @@ and expect `G;` to equate to `int i, j;` (though it's now a long) and `K` to mea prepended to them. -## [1993/leo](/1993/leo/leo.c) ([README.md](/1993/leo/README.md])) +## [1993/leo](1993/leo/leo.c) ([README.md](1993/leo/README.md])) [Cody](#cody) fixed this to work with modern compilers. This involved different header files for functions. -## [1993/lmfjyh](/1993/lmfjyh/lmfjyh.c) ([README.md](/1993/lmfjyh/README.md])) +## [1993/lmfjyh](1993/lmfjyh/lmfjyh.c) ([README.md](1993/lmfjyh/README.md])) -[Cody](#cody) added an [alternate version](/1993/lmfjyh/lmfjyh.alt.c) which does what the +[Cody](#cody) added an [alternate version](1993/lmfjyh/lmfjyh.alt.c) which does what the program did with gcc < 2.3.3. See the README.md file for details and for why this was made the alternate version, not the actual entry. -## [1993/plummer](/1993/plummer/plummer.c) ([README.md](/1993/plummer/README.md])) +## [1993/plummer](1993/plummer/plummer.c) ([README.md](1993/plummer/README.md])) [Cody](#cody) added check for two args. -Cody also added an [alternate version](/1993/plummer/plummer.alt.c) which uses +Cody also added an [alternate version](1993/plummer/plummer.alt.c) which uses `usleep()` so you can see what is happening with faster systems. This version also checks for two args. See the README.md files for details. -## [1993/rince](/1993/rince/rince.c) ([README.md](/1993/rince/README.md])) +## [1993/rince](1993/rince/rince.c) ([README.md](1993/rince/README.md])) [Yusuke](#yusuke) supplied a patch to get this to work in modern systems. This fix also -applies the compatibility issue of `select(/2)` described in the README.md file. +applies the compatibility issue of `select(2)` described in the README.md file. [Cody](#cody) added a call to `endwin()` to help with terminal sanity after the program ends. @@ -1628,12 +1628,12 @@ slow down but Cody did it in such a way that makes it easy to configure at compile time. See the README.md for details. -## [1993/schnitzi](/1993/schnitzi/schnitzi.c) ([README.md](/1993/schnitzi/README.md])) +## [1993/schnitzi](1993/schnitzi/schnitzi.c) ([README.md](1993/schnitzi/README.md])) [Cody](#cody) made this use `fgets(3)` not `gets(3)`. -## [1993/vanb](/1993/vanb/vanb.c) ([README.md](/1993/vanb/README.md])) +## [1993/vanb](1993/vanb/vanb.c) ([README.md](1993/vanb/README.md])) [Cody](#cody) fixed this to work with clang. The problem was that the third arg to main() was not a `char **`. Instead `O5()` (which was `main()` via `-DO5=main`) is now @@ -1665,7 +1665,7 @@ this code. Other code is also described there. # 1994 -## [1994/dodsond2](/1994/dodsond2/dodsond2.c) ([README.md](/1994/dodsond2/README.md)) +## [1994/dodsond2](1994/dodsond2/dodsond2.c) ([README.md](1994/dodsond2/README.md)) [Cody](#cody) fixed an infinite loop that could happen when you shoot an arrow and end up having no arrows, thus making one force quit the game. The problem @@ -1696,7 +1696,7 @@ counter for how many you have found and how many you shot in addition to the two that already existed, how many you had and how many were stolen. -## [1994/horton](/1994/horton/horton.c) ([README.md](/1994/horton/README.md)) +## [1994/horton](1994/horton/horton.c) ([README.md](1994/horton/README.md)) [Cody](#cody) fixed this to check that four args were specified. With the use of the C pre-processor macro and inclusion of stdlib.h in the Makefile the layout of the @@ -1708,14 +1708,14 @@ Cody also fixed the Makefile which was causing alt code to be compiled when it shouldn't be. -## [1994/ldb](/1994/ldb/ldb.c) ([README.md](/1994/ldb/README.md])) +## [1994/ldb](1994/ldb/ldb.c) ([README.md](1994/ldb/README.md])) [Cody](#cody) fixed this so it would compile and work with modern compilers. The problem was that `srand()` returns void but it was used in a `||` expression. Thus the comma operator was needed. Cody also fixed it for clang under Linux which objected to incompatible pointer -type (because `time(/2)` takes a `time_t *` which in some systems is a `long *` +type (because `time(2)` takes a `time_t *` which in some systems is a `long *` but what was being passed to it is an `int`). Cody also changed the entry to use `fgets(3)` instead of `gets(3)`. This one has @@ -1731,12 +1731,12 @@ program chooses that line it might print the first 231 characters or it might print (up to) the next 231 characters and so on. -## [1994/schnitzi](/1994/schnitzi/schnitzi.c) ([README.md](/1994/schnitzi/README.md])) +## [1994/schnitzi](1994/schnitzi/schnitzi.c) ([README.md](1994/schnitzi/README.md])) [Cody](#cody) added two alt versions, [one which uses -`fgets()`](/1994/schnitzi/schnitzi.alt.c) but when fed its own source code cannot +`fgets()`](1994/schnitzi/schnitzi.alt.c) but when fed its own source code cannot generate code that compile and another [one with a bigger buffer -size](/1994/schnitzi/schnitzi.alt2.c) which, when fed its own source code, will +size](1994/schnitzi/schnitzi.alt2.c) which, when fed its own source code, will generate compilable code but not with the same buffer size but rather the original buffer size. Cody explains this in the at [1994/schnitzi in bugs.md](/bugs.md#1994-schnitzi). @@ -1749,7 +1749,7 @@ details. Later on, if nobody takes up the task, Cody might resume it, but for now there is more important work to do so that the next contest can run. -## [1994/shapiro](/1994/shapiro/shapiro.c) ([README.md](/1994/shapiro/README.md])) +## [1994/shapiro](1994/shapiro/shapiro.c) ([README.md](1994/shapiro/README.md])) [Cody](#cody) fixed a bug on systems where `EOF != -1`. The problem is that `getc()` and the related functions do not return `-1` on EOF or error but rather `EOF`. @@ -1761,7 +1761,7 @@ For an interesting problem that occurred here and what was done to solve it, check the [bugs.md](bugs.md) file. -## [1994/tvr](/1994/tvr/tvr.c) ([README.md](/1994/tvr/README.md])) +## [1994/tvr](1994/tvr/tvr.c) ([README.md](1994/tvr/README.md])) [Cody](#cody) made this use `fgets(3)` instead of `gets(3)`. In this case the newline had to be terminated but it was a pretty straightforward fix. `gets()` was defined @@ -1771,17 +1771,17 @@ more like the original entry this was done in the Makefile. Note that the alt code does not use `fgets(3)` but rather `gets(3)`. -## [1994/weisberg](/1994/weisberg/weisberg.c) ([README.md](/1994/weisberg/README.md])) +## [1994/weisberg](1994/weisberg/weisberg.c) ([README.md](1994/weisberg/README.md])) [Cody](#cody) changed the Makefile to make this program more user friendly and easier to use with other tools as well by making the program output not a space after each number but rather a newline. -## [1994/westley](/1994/westley/westley.c) ([README.md](/1994/westley/README.md])) +## [1994/westley](1994/westley/westley.c) ([README.md](1994/westley/README.md])) [Cody](#cody) converted the spoiler compiler options (provided by the author) to be -compiler commands and added a script [spoiler.sh](/1994/westley/spoiler.sh) to +compiler commands and added a script [spoiler.sh](1994/westley/spoiler.sh) to automate the spoiler commands to make it easier to see the game in action from start to finish. @@ -1789,12 +1789,12 @@ start to finish. # 1995 -## [1995/cdua](/1995/cdua/cdua.c) ([README.md](/1995/cdua/README.md])) +## [1995/cdua](1995/cdua/cdua.c) ([README.md](1995/cdua/README.md])) [Cody](#cody) fixed this so that it would work with macOS. Once it could compile it additionally segfaulted under macOS which he also fixed. -Cody also provided the [Alternate code](/1995/cdua/cdua.alt.c) for fun :-) ) (in +Cody also provided the [Alternate code](1995/cdua/cdua.alt.c) for fun :-) ) (in particular to make it easier to see the program do what it does in systems that are too fast ... if there is such a thing anyway :-) ). See the README.md for details on this. @@ -1807,27 +1807,27 @@ an error but it's entirely possible that they will eventually make the defect function as the error message claims. -## [1995/dodsond1](/1995/dodsond1/dodsond1.c) ([README.md](/1995/dodsond1/README.md])) +## [1995/dodsond1](1995/dodsond1/dodsond1.c) ([README.md](1995/dodsond1/README.md])) -[Cody](#cody) added the [try.sh](/1995/dodsond1/try.sh) script that uses the text file he +[Cody](#cody) added the [try.sh](1995/dodsond1/try.sh) script that uses the text file he provided which is input we suggested one try with the entry. -## [1995/esde](/1995/esde/esde.c) ([README.md](/1995/esde/README.md])) +## [1995/esde](1995/esde/esde.c) ([README.md](1995/esde/README.md])) -[Cody](#cody) added the [try.sh](/1995/esde/try.sh) script. +[Cody](#cody) added the [try.sh](1995/esde/try.sh) script. -## [1995/garry](/1995/garry/garry.c) ([README.md](/1995/garry/README.md])) +## [1995/garry](1995/garry/garry.c) ([README.md](1995/garry/README.md])) [Cody](#cody) fixed the alt code so that it will compile with modern compilers. The problem was a missing `int` for the `f` variable. He felt it was even more important that it works because the layout does indeed look to him like a rat is dropping core :-), something that the judges suggested. -Cody also renamed `garry.test.sh` to [try.sh](/1995/garrytry.sh) and improved it +Cody also renamed `garry.test.sh` to [try.sh](1995/garrytry.sh) and improved it to to make sure the program is compiled before trying to use it and he also -added the [try.alt.sh](/1995/garry/try.alt.sh) script to use the alt version, +added the [try.alt.sh](1995/garry/try.alt.sh) script to use the alt version, though the alt version is not as important as alt code in other entries. The reason the alt script was added rather than using an environmental variable @@ -1836,13 +1836,13 @@ to specify which one to use is to make it easier on the user as typing running `./try.alt.sh`. -## [1995/leo](/1995/leo/leo.c) ([README.md](/1995/leo/README.md])) +## [1995/leo](1995/leo/leo.c) ([README.md](1995/leo/README.md])) At our change in how to deal with spoilers, [Cody](#cody) uudecoded the spoiler provided -by the author, putting it in [spoiler1.md](/1995/leo/spoiler1.md). +by the author, putting it in [spoiler1.md](1995/leo/spoiler1.md). -## [1995/makarios](/1995/makarios/makarios.c) ([README.md](/1995/makarios/README.md)) +## [1995/makarios](1995/makarios/makarios.c) ([README.md](1995/makarios/README.md)) [Cody](#cody) fixed this so that it will compile with versions of clang that has a defect which only allows `main()` to have 0, 2 or 3 args. This is done by a new @@ -1850,9 +1850,9 @@ function (`pain()` as it's annoying that clang is this way :-) ) that `main()` calls which has the four args. -## [1995/vanschnitz](/1995/vanschnitz/vanschnitz.c) ([README.md](/1995/vanschnitz/README.md)) +## [1995/vanschnitz](1995/vanschnitz/vanschnitz.c) ([README.md](1995/vanschnitz/README.md)) -[Cody](#cody) added the authors' [spoiler as a C file](/1995/vanschnitz/spoiler.c) as in +[Cody](#cody) added the authors' [spoiler as a C file](1995/vanschnitz/spoiler.c) as in 2023 we have decided that in most cases all the code should be available for the wider audience, without having to extract it. The exception is when the files are created by the entry or the entry decrypts the text or whatever else. @@ -1861,21 +1861,21 @@ are created by the entry or the entry decrypts the text or whatever else. # 1996 -## [1996/august](/1996/august/august.c) ([README.md](/1996/august/README.md])) +## [1996/august](1996/august/august.c) ([README.md](1996/august/README.md])) [Cody](#cody) fixed a segfault in this program that prevented it from working right and also fixed an infinite loop in the try commands. The problem with the infinite loop is that the file `august.oc` had to have lines starting with `#` removed -and it was not being done. After this is done with say `sed(/1)` (like `sed -i'' +and it was not being done. After this is done with say `sed(1)` (like `sed -i'' '/^#/d' august.oc` which has been added to both the remarks and the try.sh script as described below) the code can proceed. This problem existed in macOS. -Cody also added the [try.sh](/1996/august/try.sh) script that runs all the +Cody also added the [try.sh](1996/august/try.sh) script that runs all the commands given in the try section to simplify it as there are quite a lot of commands. -## [1996/dalbec](/1996/dalbec/dalbec.c) ([README.md](/1996/dalbec/README.md])) +## [1996/dalbec](1996/dalbec/dalbec.c) ([README.md](1996/dalbec/README.md])) [Cody](#cody) proposed a fix for this to compile with clang and Landon implemented it after some discussion (though Cody changed the function name). The reason Cody @@ -1892,9 +1892,9 @@ numbers on the same line. This was not put in an alternate version but perhaps it should be. -## [1996/eldby](/1996/eldby/eldby.c) ([README.md](/1996/eldby/README.md])) +## [1996/eldby](1996/eldby/eldby.c) ([README.md](1996/eldby/README.md])) -[Cody](#cody) provided an [alternate version](/1996/eldby/eldby.alt.c) which uses +[Cody](#cody) provided an [alternate version](1996/eldby/eldby.alt.c) which uses `usleep()` in between writing the output to make it easier to see what is going on with faster systems and importantly also for those who are sensitive to text flashing by rapidly (it affects him too but he also thinks it moves too fast @@ -1902,13 +1902,13 @@ nowadays anyway). We recommend that you try the alternate version first due to these reasons. -## [1996/gandalf](/1996/gandalf/gandalf.c) ([README.md](/1996/gandalf/README.md])) +## [1996/gandalf](1996/gandalf/gandalf.c) ([README.md](1996/gandalf/README.md])) [Cody](#cody) fixed this to compile and work with modern systems. As he loved the references in the code that could not compile he just commented out as little as possible to get this to compile. -Cody also added the rather useful [try.sh](/1996/gandalf/try.sh) script to +Cody also added the rather useful [try.sh](1996/gandalf/try.sh) script to really demonstrate the different ways of running the program ends up showing either different output or the same output that we briefly pointed out. @@ -1916,12 +1916,12 @@ BTW: it is perilous to try the patience of [Gandalf](https://www.glyphweb.com/arda/g/gandalf.html). Go ahead, try it! :-) -## [1996/huffman](/1996/huffman/huffman.c) ([README.md](/1996/huffman/README.md])) +## [1996/huffman](1996/huffman/huffman.c) ([README.md](1996/huffman/README.md])) -[Cody](#cody) added the [try.sh](/1996/huffman/try.sh) script. +[Cody](#cody) added the [try.sh](1996/huffman/try.sh) script. -## [1996/jonth](/1996/jonth/jonth.c) ([README.md](/1996/jonth/README.md])) +## [1996/jonth](1996/jonth/jonth.c) ([README.md](1996/jonth/README.md])) [Cody](#cody) fixed this to not segfault under macOS. The problem was that the function pointer `w`, which points to `XCreateWindow()`, did not specify the parameters of @@ -1930,7 +1930,7 @@ the function in the pointer assignment. NOTE: if there is no X server running this program will still crash. -## [1996/schweikh1](/1996/schweikh1/schweikh1.c) ([README.md](/1996/schweikh1/README.md])) +## [1996/schweikh1](1996/schweikh1/schweikh1.c) ([README.md](1996/schweikh1/README.md])) The author stated that `-I/usr/include` is needed by gcc in Solaris because `errno.h` has two identical extern declarations of `errno`. That leads to an @@ -1942,15 +1942,15 @@ the Makefile despite the fact that very few probably use Solaris nowadays. -## [1996/schweikh2](/1996/schweikh2/schweikh2.c) ([README.md](/1996/schweikh2/README.md])) +## [1996/schweikh2](1996/schweikh2/schweikh2.c) ([README.md](1996/schweikh2/README.md])) -[Cody](#cody) added the [try.sh](/1996/schweikh2/try.sh) script with a few commands to try +[Cody](#cody) added the [try.sh](1996/schweikh2/try.sh) script with a few commands to try along with a shorter version of something the author suggested one try (it is suggested that one try the longer version too but it will run in an infinite loop so having it in a script is less desired). -## [1996/westley](/1996/westley/westley.c) ([README.md](/1996/westley/README.md])) +## [1996/westley](1996/westley/westley.c) ([README.md](1996/westley/README.md])) [Cody](#cody) fixed a segfault in this entry as well as it displaying environmental variables. Although the scripts showed correct output, it somewhat lessened the @@ -1959,12 +1959,12 @@ interspersed with the output of the program. With the fix they no longer have this problem. If `argc < 5` (`argv[4]` is referenced) it will not do anything and it will not segfault either - this was caused by the body of the for() loop which is now empty (it doesn't appear to be needed at all at least modernly). -Note that you should check the [westley.alt.c](/1996/westley/westley.alt.c) file +Note that you should check the [westley.alt.c](1996/westley/westley.alt.c) file when reading the author's comments. To see how to use the original, see the README.md file. -Cody also added the two scripts, [try.sh](/1996/westley/try.sh) and -[try.alt.sh](/1996/westley/try.alt.sh) to show automate showing the different +Cody also added the two scripts, [try.sh](1996/westley/try.sh) and +[try.alt.sh](1996/westley/try.alt.sh) to show automate showing the different clocks, both with the fixed version and the original (alt) version. Also, to fix any potential problem with displaying in GitHub the scripts @@ -1977,22 +1977,20 @@ Later Cody made the entry look more like the original, removing the `argc` in # 1998 -## [1998/banks](/1998/banks/banks.c) ([README.md](/1998/banks/README.md])) +## [1998/banks](1998/banks/banks.c) ([README.md](1998/banks/README.md])) -[Cody](#cody) improved the Makefile to allow for easier redefining the control -keys and time step that the author set up. +[Cody](#cody) improved the Makefile to make it easier to change the controls and +time step when compiling the code. Cody also set up the Makefile to have an alt build (using the same code) for those who do not have a page up or page down key and added the -[keysym.h](/1998/banks/keysym.h) header file as a reference for other keys one +[keysym.h](1998/banks/keysym.h) header file as a reference for other keys one can use if they wish to modify the controls. One can certainly do this even if they do have page up and page down but this gives a default for those who don't -have them like with Macs. The alt build hard codes the page up and page down -alternatives because not doing so would overly complicate both builds and since -you can configure them all in both builds it shouldn't matter. +have them like with Macs. -## [1998/bas1](/1998/bas1/bas1.c) ([README.md](/1998/bas1/README.md])) +## [1998/bas1](1998/bas1/bas1.c) ([README.md](1998/bas1/README.md])) [Cody](#cody), out of an abundance of caution, added a second arg to `main()` as some versions of clang whine about the number of args on top of what type they are @@ -2002,19 +2000,19 @@ quite possible they will 'fix' this defect it would be better to have this not be a problem at such a time. -## [1998/bas2](/1998/bas2/bas2.c) ([README.md](/1998/bas2/README.md])) +## [1998/bas2](1998/bas2/bas2.c) ([README.md](1998/bas2/README.md])) -[Cody](#cody) added the [try.sh](/1998/bas2/try.sh) script which runs some default actions +[Cody](#cody) added the [try.sh](1998/bas2/try.sh) script which runs some default actions as well as allowing one to pass in different file names or strings. -## [1998/chaos](/1998/chaos/chaos.c) ([README.md](/1998/chaos/README.md])) +## [1998/chaos](1998/chaos/chaos.c) ([README.md](1998/chaos/README.md])) [Cody](#cody) added a call to `endwin()` to restore terminal sanity (echo etc.) when exiting the program (in both versions). -## [1998/df](/1998/df/df.c) ([README.md](/1998/df/README.md])) +## [1998/df](1998/df/df.c) ([README.md](1998/df/README.md])) [Cody](#cody) changed a `int *` used for `fopen(3)` to be a `FILE *` to be more correct and prevent any possible problems in some systems (which has happened). @@ -2025,33 +2023,33 @@ and by changing the typedef `lint` (to `int` - see the code for why this has to be done in modern systems) to be `_int`. -## [1998/dlowe](/1998/dlowe/dlowe.c) ([README.md](/1998/dlowe/README.md])) +## [1998/dlowe](1998/dlowe/dlowe.c) ([README.md](1998/dlowe/README.md])) [Cody](#cody) made the program more portable by changing the void return type of `main()` to be `int` (in both versions). -Cody added the scripts [try.sh](/1998/dlowe/try.sh), -[pootify.sh](/1998/dlowe/pootify.sh) and -[pootify.cgi.sh](/1998/dlowe/pootify.cgi.sh) for a fun example use of the +Cody added the scripts [try.sh](1998/dlowe/try.sh), +[pootify.sh](1998/dlowe/pootify.sh) and +[pootify.cgi.sh](1998/dlowe/pootify.cgi.sh) for a fun example use of the program, a local pootifier of web pages and a CGI pootifier. It should be noted that the CGI version might have an issue with modern systems; see [historical -remarks](/1998/dlowe/README.md#historical-remarks) for more details on the +remarks](1998/dlowe/README.md#historical-remarks) for more details on the pootify scripts. -## [1998/dloweneil](/1998/dloweneil/dloweneil.c) ([README.md](/1998/dloweneil/README.md])) +## [1998/dloweneil](1998/dloweneil/dloweneil.c) ([README.md](1998/dloweneil/README.md])) -[Cody](#cody) added [alt code](/1998/dloweneil/dloweneil.alt.c) which has vi(m) movement +[Cody](#cody) added [alt code](1998/dloweneil/dloweneil.alt.c) which has vi(m) movement (in addition to the other keys except for dropping it's not `d` but `j` or space) keys as well as allowing one to quit the game. -## [1998/dorssel](/1998/dorssel/dorssel.c) ([README.md](/1998/dorssel/README.md])) +## [1998/dorssel](1998/dorssel/dorssel.c) ([README.md](1998/dorssel/README.md])) -[Cody](#cody) added the [try.sh](/1998/dorssel/try.sh) script. +[Cody](#cody) added the [try.sh](1998/dorssel/try.sh) script. -## [1998/fanf](/1998/fanf/fanf.c) ([README.md](/1998/fanf/README.md)) +## [1998/fanf](1998/fanf/fanf.c) ([README.md](1998/fanf/README.md)) [Cody](#cody) fixed this to compile. The problem was the intermediate steps to get to the final code that is compiled. The code is now what it essentially becomes when @@ -2065,11 +2063,11 @@ possible though that this will change so it is fixed in case this happens. As it is mostly just through the C pre-processor Cody added a new macro to do translate to the rest of `main()`'s args. -Cody also added the [try.sh](/1998/fanf/try.sh) script to show the output of some +Cody also added the [try.sh](1998/fanf/try.sh) script to show the output of some of the expressions that we selected. -## [1998/schnitzi](/1998/schnitzi/schnitzi.c) ([README.md](/1998/schnitzi/README.md])) +## [1998/schnitzi](1998/schnitzi/schnitzi.c) ([README.md](1998/schnitzi/README.md])) [Cody](#cody) fixed invalid data types which prevented this entry from working, causing a segfault. This showed itself in two parts which required two fixes, one for @@ -2087,14 +2085,14 @@ doesn't crash. At this point since the author stated it has no `while`, doing: ```c -((V[1]&&((atoi(V[1])>0&&atoi(V[1])<27))||(exit(/1),1))); +((V[1]&&((atoi(V[1])>0&&atoi(V[1])<27))||(exit(1),1))); ``` -Cody also added the [try.sh](/1998/schnitzi/try.sh) script to help users try the +Cody also added the [try.sh](1998/schnitzi/try.sh) script to help users try the commands that we recommended as well as some added by him. -## [1998/schweikh1](/1998/schweikh1/schweikh1.c) ([README.md](/1998/schweikh1/README.md])) +## [1998/schweikh1](1998/schweikh1/schweikh1.c) ([README.md](1998/schweikh1/README.md])) [Cody](#cody) fixed this for modern systems (it did not work at all) and added an alternate version that works with macOS. Cody also made it ever so slightly more @@ -2103,7 +2101,7 @@ this not only lets it work with systems without `gcc` (though in macOS it does exist but is actually `clang`) as `cc` always should. Getting this entry to work was quite complicated but is also very interesting. -To see how the macOS fixes works, see the [macos.md](/1998/schweikh1/macos.md) +To see how the macOS fixes works, see the [macos.md](1998/schweikh1/macos.md) file but do note that this includes spoilers for both versions! The fixes to get it to work at all are described next. @@ -2149,10 +2147,10 @@ MACRO value` it will work, assuming that compiler can run, of course. Cody also added the perl script that the author provided that they used to compute the character count in the code according to the contest rules of 1998 -in the file [charcount.pl](/1998/schweikh1/charcount.pl). +in the file [charcount.pl](1998/schweikh1/charcount.pl). -## [1998/schweikh2](/1998/schweikh2/schweikh2.c) ([README.md](/1998/schweikh2/README.md])) +## [1998/schweikh2](1998/schweikh2/schweikh2.c) ([README.md](1998/schweikh2/README.md])) [Cody](#cody) fixed the code to not trigger an internal compiler error in gcc: @@ -2163,9 +2161,9 @@ in the file [charcount.pl](/1998/schweikh1/charcount.pl). :12:19: internal compiler error: invalid built-in macro "__FILE__" ``` -The string `"01\015"` had to be changed to `ONE(O(/1,1,2,6,0,6))`. For an +The string `"01\015"` had to be changed to `ONE(O(1,1,2,6,0,6))`. For an interesting historical explanation and further details and fun, see the -[historical remarks](/1998/schweikh2/README.md#historical-remarks) in the +[historical remarks](1998/schweikh2/README.md#historical-remarks) in the README.md. Cody also added an `int` after `register` in `main()` in case clang decides to @@ -2173,9 +2171,9 @@ have a problem with that in the future which is not entirely out of the question. -## [1998/schweikh3](/1998/schweikh3/schweikh3.c) ([README.md](/1998/schweikh3/README.md])) +## [1998/schweikh3](1998/schweikh3/schweikh3.c) ([README.md](1998/schweikh3/README.md])) -[Cody](#cody) added the [alternate code](/1998/schweikh3/README.md#alternate-code) which allows one +[Cody](#cody) added the [alternate code](1998/schweikh3/README.md#alternate-code) which allows one to reconfigure the size constant in the rare case that the author wrote about occurs. @@ -2184,7 +2182,7 @@ of clang say that `main()` can only have 0, 2 or 3 args. These versions accept 1 arg but it is entirely possible that they fix this so this should prevent it from breaking if that happens. -Cody added the [try.sh](/1998/schweikh3/try.sh) script to make it easier to try +Cody added the [try.sh](1998/schweikh3/try.sh) script to make it easier to try the commands that we suggested. One command was not added, that of the to use command. @@ -2208,7 +2206,7 @@ There actually is a web page for the tool and this was added to the author information for the entry. It has not been added to any JSON file. -## [1998/tomtorfs](/1998/tomtorfs/tomtorfs.c) ([README.md](/1998/tomtorfs/README.md])) +## [1998/tomtorfs](1998/tomtorfs/tomtorfs.c) ([README.md](1998/tomtorfs/README.md])) [Cody](#cody) fixed the assumption that `EOF` is `-1` (the author noted that it assumes it is `-1` and it's indeed a valid concern as the standard only guarantees that @@ -2219,64 +2217,64 @@ the `EXIT_FAILURE` change was done by redefining `exit(3)` to be `exit(a) return EXIT_FAILURE` and `1` was passed to it (`return` was used because the original program had `return 1`). -Cody also added the [try.sh](/1998/tomtorfs/try.sh) script to try out a few +Cody also added the [try.sh](1998/tomtorfs/try.sh) script to try out a few commands that we recommended. # 2000 -## [2000/anderson](/2000/anderson/anderson.c) ([README.md](/2000/anderson/README.md])) +## [2000/anderson](2000/anderson/anderson.c) ([README.md](2000/anderson/README.md])) [Cody](#cody) changed this entry to use `fgets(3)` instead of `gets(3)`. This involved changing the `K` arg to `gets(3)` to `&K` in `fgets(3)`. -Cody also added the [try.sh](/2000/anderson/try.sh) script. +Cody also added the [try.sh](2000/anderson/try.sh) script. -## [2000/bmeyer](/2000/bmeyer/bmeyer.c) ([README.md](/2000/bmeyer/README.md])) +## [2000/bmeyer](2000/bmeyer/bmeyer.c) ([README.md](2000/bmeyer/README.md])) -[Cody](#cody) added the [try.sh](/2000/bmeyer/try.sh) script with some improvements to the +[Cody](#cody) added the [try.sh](2000/bmeyer/try.sh) script with some improvements to the commands we recommended like not assuming the number of columns one has in their terminal. -## [2000/briddlebane](/2000/briddlebane/briddlebane.c) ([README.md](/2000/briddlebane/README.md])) +## [2000/briddlebane](2000/briddlebane/briddlebane.c) ([README.md](2000/briddlebane/README.md])) [Cody](#cody) fixed this to compile in systems that require one to explicitly link in `libm`. -## [2000/dhyang](/2000/dhyang/dhyang.c) ([README.md](/2000/dhyang/README.md])) +## [2000/dhyang](2000/dhyang/dhyang.c) ([README.md](2000/dhyang/README.md])) [Cody](#cody) made this more portable by changing the `void main` to `int main`. -He also added the [try.sh](/2000/dhyang/try.sh) script. +He also added the [try.sh](2000/dhyang/try.sh) script. -## [2000/dlowe](/2000/dlowe/dlowe.c) ([README.md](/2000/dlowe/README.md])) +## [2000/dlowe](2000/dlowe/dlowe.c) ([README.md](2000/dlowe/README.md])) [Cody](#cody) fixed this to compile with more recent perl versions; the symbol that's now `PL_na` was once `na`. He notes that this entry crashes under macOS but it works under Linux after this change. -Cody also added the [try.sh](/2000/dlowe/try.sh) script. +Cody also added the [try.sh](2000/dlowe/try.sh) script. -## [2000/jarijyrki](/2000/jarijyrki/jarijyrki.c) ([README.md](/2000/jarijyrki/README.md])) +## [2000/jarijyrki](2000/jarijyrki/jarijyrki.c) ([README.md](2000/jarijyrki/README.md])) [Cody](#cody) made it easier to compile this in some cases by adding `X11/` to the includes of `Xlib.h` and `keysym.h`. -## [2000/natori](/2000/natori/natori.c) ([README.md](/2000/natori/README.md])) +## [2000/natori](2000/natori/natori.c) ([README.md](2000/natori/README.md])) [Cody](#cody) fixed this for modern compilers. Depending on the compiler it would either segfault when run or not compile at all (gcc and clang respectively). Cody also provided alternate code that supports the southern hemisphere. -Cody also provided the [try.sh](/2000/natori/try.sh) script that shows the Moon +Cody also provided the [try.sh](2000/natori/try.sh) script that shows the Moon phase in artistic ways. Later on Cody restored the `#include`s in the source code which had been changed @@ -2286,19 +2284,19 @@ itself a one-line like the code is in the original entry. Now it looks much more like the original entry but with the two fixes. -## [2000/primenum](/2000/primenum/primenum.c) ([README.md](/2000/primenum/README.md])) +## [2000/primenum](2000/primenum/primenum.c) ([README.md](2000/primenum/README.md])) [Cody](#cody) made this more portable by changing the `void main` to `int main`. -Cody also added the [try.sh](/2000/primenum/try.sh) script. +Cody also added the [try.sh](2000/primenum/try.sh) script. -## [2000/rince](/2000/rince/rince.c) ([README.md](/2000/rince/README.md])) +## [2000/rince](2000/rince/rince.c) ([README.md](2000/rince/README.md])) -[Cody](#cody) added the [try.sh](/2000/rince/try.sh) script. +[Cody](#cody) added the [try.sh](2000/rince/try.sh) script. -## [2000/robison](/2000/robison/robison.c) ([README.md](/2000/robison/README.md])) +## [2000/robison](2000/robison/robison.c) ([README.md](2000/robison/README.md])) [Cody](#cody) fixed an infinite loop that occurred if invalid input was entered, flooding the screen with: @@ -2312,7 +2310,7 @@ on it to assign to the `int`s, much like with `1987/lievaart`. The strings are `char[5]` and the `%` specifier is `%4s` which is enough for the game. -## [2000/thadgavin](/2000/thadgavin/thadgavin.c) ([README.md](/2000/thadgavin/README.md])) +## [2000/thadgavin](2000/thadgavin/thadgavin.c) ([README.md](2000/thadgavin/README.md])) [Cody](#cody) fixed the code and added an appropriate make rule so that the [SDL](https://www.libsdl.org) version works independent from the curses version @@ -2355,11 +2353,11 @@ the curses and the SDL versions as Cody does not have a DOS system to test the other version in. -## [2000/tomx](/2000/tomx/tomx.c) ([README.md](/2000/tomx/README.md])) +## [2000/tomx](2000/tomx/tomx.c) ([README.md](2000/tomx/README.md])) -[Cody](#cody) added the [alt code](/2000/tomx/README.md#alternate-code) based on the +[Cody](#cody) added the [alt code](2000/tomx/README.md#alternate-code) based on the author's remarks with a fix for modern systems and he also added the two -scripts, [try.sh](/2000/tomx/try.sh) and [try.alt.sh](/2000/tomx/try.alt.sh) for +scripts, [try.sh](2000/tomx/try.sh) and [try.alt.sh](2000/tomx/try.alt.sh) for the main code and the alt code respectively. And although the scripts do `chmod +x` on the source code (see the README.md for @@ -2369,7 +2367,7 @@ details) the source code is now executable by default. # 2001 -## [2001/anonymous](/2001/anonymous/anonymous.c) ([README.md](/2001/anonymous/README.md])) +## [2001/anonymous](2001/anonymous/anonymous.c) ([README.md](2001/anonymous/README.md])) [Cody](#cody) fixed both the supplementary program and the program itself (both of which segfaulted and once that was fixed only the binary was modified; it was not run @@ -2450,12 +2448,12 @@ Cody also added a [program](anonymous.bed.c) like [anonymous.ten.c](anonymous.te [Ten Green Bottles](https://en.wikipedia.org/wiki/Ten_Green_Bottles) but which sings [Ten in the Bed](https://allnurseryrhymes.com/ten-in-the-bed/) instead. -As well he added the [try.sh](/2001/anonymous/try.sh) so that one can +As well he added the [try.sh](2001/anonymous/try.sh) so that one can attempt to use the program as it was designed but if compiling as 32-bit fails it will at least run the supplementary program as a 64-bit program directly. -## [2001/bellard](/2001/bellard/bellard.c) ([README.md](/2001/bellard/README.md])) +## [2001/bellard](2001/bellard/bellard.c) ([README.md](2001/bellard/README.md])) [Cody](#cody) fixed this to compile with clang but according to the author this will not work without i386 Linux. It generates i386 32-bit code (not bytecode) but @@ -2471,7 +2469,7 @@ case of `main()` this was not possible. compilers besides what Cody did. Cody entirely fixed the [supplementary -bellard.otccex.c](/2001/bellard/bellard.otccex.c) so it does not segfault and +bellard.otccex.c](2001/bellard/bellard.otccex.c) so it does not segfault and works as well (it did not work at all). The main problem was that some ints were being used as pointers. This includes, for example, an int used as a `char *`, an int used as a function pointer and an int to access `argv` as well as there @@ -2501,7 +2499,7 @@ compiler that does not support this would not work. Thus we use the modification by Yusuke. -## [2001/cheong](/2001/cheong/cheong.c) ([README.md](/2001/cheong/README.md])) +## [2001/cheong](2001/cheong/cheong.c) ([README.md](2001/cheong/README.md])) [Cody](#cody) fixed this to work with clang by adding another function that is allowed to have a third arg as an int, not a `char **`. He chose `pain()` because it's a four @@ -2509,12 +2507,12 @@ letter word that would match the format and because it's pain that clang forces this. :-) This fix makes a point of the author's notes on portability no longer valid, BTW. -Cody also added the [try.sh](/2001/cheong/try.sh) script. +Cody also added the [try.sh](2001/cheong/try.sh) script. He also fixed it to check the number of args. -## [2001/coupard](/2001/coupard/coupard.c) ([README.md](/2001/coupard/README.md])) +## [2001/coupard](2001/coupard/coupard.c) ([README.md](2001/coupard/README.md])) [Cody](#cody) added a value to `return` in `main()` to make it more portable. @@ -2536,11 +2534,11 @@ This was not really worth a thanks per se but it was originally done by adding later on to make it more like the original. Yusuke provided a proper command line for macOS (to do with sound; see his -[/2013/endoh3/README.md](/2013/endoh3/README.md) entry where he also refers to +[/2013/endoh3/README.md](2013/endoh3/README.md) entry where he also refers to sound devices in macOS). -## [2001/ctk](/2001/ctk/ctk.c) ([README.md](/2001/ctk/README.md])) +## [2001/ctk](2001/ctk/ctk.c) ([README.md](2001/ctk/README.md])) The ANSI escape codes were no longer valid but [Yusuke](#yusuke) provided a patch to fix the ANSI escape codes. This works with both Linux and macOS. @@ -2550,11 +2548,11 @@ etc.) after exiting even if you don't press 'q', if you crash or if you kill the program prematurely. This was done by adding an explicit call to `e()` at the end of `main()`. -Cody also added the [alt code](/2001/ctk/README.md#alternate-code) that adds +Cody also added the [alt code](2001/ctk/README.md#alternate-code) that adds vi(m) movement keys. -## [2001/dgbeards](/2001/dgbeards/dgbeards.c) ([README.md](/2001/dgbeards/README.md])) +## [2001/dgbeards](2001/dgbeards/dgbeards.c) ([README.md](2001/dgbeards/README.md])) The author provided two changes: one to speed it up and one to make it not crash on losing. [Cody](#cody) provided an alternate version which does the former but he felt @@ -2565,17 +2563,17 @@ He also points out that there is a way to get the computer to automatically lose very quickly. Do you know what it is? -## [2001/herrmann1](/2001/herrmann1/herrmann1.c) ([README.md](/2001/herrmann1/README.md])) +## [2001/herrmann1](2001/herrmann1/herrmann1.c) ([README.md](2001/herrmann1/README.md])) [Cody](#cody) fixed this so that the when compiling the code the program is not executed itself by itself which just showed the usage string and exited. The [script -herrmann1.sh](/2001/herrmann1/herrmann1.sh) is used to compile the program but +herrmann1.sh](2001/herrmann1/herrmann1.sh) is used to compile the program but it's also how you invoke the program. -Cody provided the file [plus1.turing](/2001/herrmann1/plus1.turing) based on the +Cody provided the file [plus1.turing](2001/herrmann1/plus1.turing) based on the author's remarks. -He also fixed the [script herrmann1.sh](/2001/herrmann1/herrmann1.sh) for +He also fixed the [script herrmann1.sh](2001/herrmann1/herrmann1.sh) for shellcheck. In particular there were quite a few: @@ -2587,7 +2585,7 @@ SC2248 (style): Prefer double quoting even when variables don't contain special errors/warnings. -## [2001/herrmann2](/2001/herrmann2/herrmann2.c) ([README.md](/2001/herrmann2/README.md])) +## [2001/herrmann2](2001/herrmann2/herrmann2.c) ([README.md](2001/herrmann2/README.md])) [Cody](#cody) fixed this to work with both 64-bit and 32-bit compilers by changing most of the `int`s (all but that in `main(int ...)`) to `long`s. He also fixed it to @@ -2595,48 +2593,47 @@ compile with clang by changing the args of main to be `int` and `char **`, respectively, and changing specific references to the `argv` arg, casting to `long` (was `int` but the 64-bit fix requires `long`) which was its old type. -Cody also added the [try.sh](/2001/herrmann2/try.sh) script which might be more +Cody also added the [try.sh](2001/herrmann2/try.sh) script which might be more useful than any other place as the command to try is quite long with C code. For some reason the original code was missing (presumingly because it had been added to `.gitignore` by accident) but Cody restored it from the archive. -## [2001/kev](/2001/kev/kev.c) ([README.md](/2001/kev/README.md])) +## [2001/kev](2001/kev/kev.c) ([README.md](2001/kev/README.md])) -[Cody](#cody) improved the Makefile to allow one to more easily set up the port, -speed and `socket(2)` call that the author had set up. +[Cody](#cody) improved the Makefile so that one can more easily reconfigure the +port, the speed and the `socket(2)` call. -Cody also slowed down the ball just a tad (it was already a `-D` macro that was used +Cody slowed down the ball just a tad (it was already a `-D` macro that was used in the code) as it went too fast for the speed at which the paddles move even when holding down the movement keys (but see below). -Cody also provided an [alternate version](/2001/kev/kev.alt.c) which lets you use +Cody also provided an [alternate version](2001/kev/kev.alt.c) which lets you use the arrow keys on your keyboard instead of the more awkward '`,`' and '`.`'. He updated both versions to have `#ifndef..#endif` pairs for the macros so one can more easily configure different settings without having to specify all of -them (though this change became unnecessary with an improvement on how it was -done). The speed, `SPEED`, will be set to 50 if it's not defined at the compiler +them. The speed, `SPEED`, will be set to 50 if it's not defined at the compiler line as 50 is what it used to be set to. This way it's more to the original but without having to sacrifice playability by running `make`. -## [2001/ollinger](/2001/ollinger/ollinger.c) ([README.md](/2001/ollinger/README.md)) +## [2001/ollinger](2001/ollinger/ollinger.c) ([README.md](2001/ollinger/README.md)) [Cody](#cody) fixed to not crash if not enough args, exiting 1 instead. -## [2001/schweikh](/2001/schweikh/schweikh.c) ([README.md](/2001/schweikh/README.md])) +## [2001/schweikh](2001/schweikh/schweikh.c) ([README.md](2001/schweikh/README.md])) [Cody](#cody) fixed this to not crash if not enough args as this was not documented by the author. The other problems are documented so were not fixed. See README.md for details. -Cody also added the [try.sh](/2001/schweikh/try.sh) script. +Cody also added the [try.sh](2001/schweikh/try.sh) script. -## [2001/westley](/2001/westley/westley.c) ([README.md](/2001/westley/README.md])) +## [2001/westley](2001/westley/westley.c) ([README.md](2001/westley/README.md])) [Cody](#cody) added the script [try.sh](try.sh) to automate a heap of commands that we, the IOCCC judges, suggested, as well as some additional ones that he @@ -2647,15 +2644,15 @@ described in the README.md, based on the author's remarks. # 2004 -## [2004/arachnid](/2004/arachnid/arachnid.c) ([README.md](/2004/arachnid/README.md])) +## [2004/arachnid](2004/arachnid/arachnid.c) ([README.md](2004/arachnid/README.md])) -[Cody](#cody) added an [alternate version](/2004/arachnid/README.md#alternate-code) which +[Cody](#cody) added an [alternate version](2004/arachnid/README.md#alternate-code) which allows those like himself used to `h`, `j`, `k` and `l` movement keys to not get lost. Non rogue players, vi users and Dvorak typists are invited to get lost (or use the original version)! :-) -## [2004/burley](/2004/burley/burley.c) ([README.md](/2004/burley/README.md])) +## [2004/burley](2004/burley/burley.c) ([README.md](2004/burley/README.md])) [Cody](#cody) fixed this to compile with clang and also fixed it to work. @@ -2684,36 +2681,36 @@ Finally the optimiser cannot be enabled so the compiler flags were changed for this. -## [2004/gavare](/2004/gavare/gavare.c) ([README.md](/2004/gavare/README.md])) +## [2004/gavare](2004/gavare/gavare.c) ([README.md](2004/gavare/README.md])) [Cody](#cody) added three different [alternate -versions](/2004/gavare/README.md#alternate-code): +versions](2004/gavare/README.md#alternate-code): -- [gavare.alt.c](/2004/gavare/gavare.alt.c) allows you to change the image size +- [gavare.alt.c](2004/gavare/gavare.alt.c) allows you to change the image size and anti-alias setting at compile time. -- [gavare.alt2.c](/2004/gavare/gavare.alt2.c) is like -[gavare.alt.c](/2004/gavare/gavare.alt.c) but it should work for Windows as well +- [gavare.alt2.c](2004/gavare/gavare.alt2.c) is like +[gavare.alt.c](2004/gavare/gavare.alt.c) but it should work for Windows as well (it sets binary mode on `stdout`). -- [gavare.r3.c](/2004/gavare/gavare.r3.c) is the author's unobfuscated version +- [gavare.r3.c](2004/gavare/gavare.r3.c) is the author's unobfuscated version that was used during development, found on their [website about the entry](https://gavare.se/ioccc/ioccc_gavare.c.html). -## [2004/gavin](/2004/gavin/gavin.c) ([README.md](/2004/gavin/README.md])) +## [2004/gavin](2004/gavin/gavin.c) ([README.md](2004/gavin/README.md])) [Yusuke](#yusuke) provided the `kernel` and `fs.tar` files which can be used if you cannot normally use this entry. Instead of generating the files just use the files -provided, found under the [img/](/2004/gavin/img/) directory. Note that the +provided, found under the [img/](2004/gavin/img/) directory. Note that the `img/fs.tar` extracts into `fs/` so you will have to fix the tarball; this is done this way to prevent extraction from the entry directory overwriting the files and causing `make clobber` to wipe some of them out. -Cody provided the [alt code](/2004/gavin/README.md#alternate-code) for those who +Cody provided the [alt code](2004/gavin/README.md#alternate-code) for those who want to use QEMU. The most important part of this is the macro `K` has to be defined as `1`, not `0`. -## [2004/jdalbec](/2004/jdalbec/jdalbec.c) ([README.md](/2004/jdalbec/README.md)) +## [2004/jdalbec](2004/jdalbec/jdalbec.c) ([README.md](2004/jdalbec/README.md)) [Cody](#cody) fixed this to compile with gcc (it worked with clang). The problem was the cpp being unable to parse the generated code (see the README.md for details) and @@ -2739,16 +2736,16 @@ jdalbec.c:65:5: error: expected ';' before 'B' and various other problems. -Cody also added [alt code](/2004/jdalbec/README.md#alternate-code) which allows +Cody also added [alt code](2004/jdalbec/README.md#alternate-code) which allows one to control how many numbers after the `:` to print before printing a newline, so that one can see the output a bit better (though for lines that have a lot of numbers this will be harder to see). -Finally Cody added [try.sh](/2004/jdalbec/try.sh) and -[try.alt.sh](/2004/jdalbec/try.alt.sh) to demonstrate both versions. +Finally Cody added [try.sh](2004/jdalbec/try.sh) and +[try.alt.sh](2004/jdalbec/try.alt.sh) to demonstrate both versions. -## [2004/kopczynski](/2004/kopczynski/kopczynski.c) ([README.md](/2004/kopczynski/README.md])) +## [2004/kopczynski](2004/kopczynski/kopczynski.c) ([README.md](2004/kopczynski/README.md])) [Cody](#cody) reported that this entry cannot be optimised by the compiler as otherwise it will not work. @@ -2757,19 +2754,19 @@ Cody, out of an abundance of caution for clang, added a second arg to `main()` as some versions complain about the number of args and although they accept 1 it is entirely possible it will eventually be that they don't. -Cody also added the [try.sh](/2004/kopczynski/try.sh) script and various data +Cody also added the [try.sh](2004/kopczynski/try.sh) script and various data files: [kopczynski-a](kopczynski-a) to demonstrate what happens when art more like a letter is fed to the program and the `kopczynski*-rev` files which are -the data files reversed with `rev(/1)`. One had to be modified additionally to +the data files reversed with `rev(1)`. One had to be modified additionally to get it to work, that being `kopczynski-10-rev`. -## [2004/newbern](/2004/newbern/newbern.c) ([README.md](/2004/newbern/README.md])) +## [2004/newbern](2004/newbern/newbern.c) ([README.md](2004/newbern/README.md])) [Cody](#cody) and Landon individually fixed this to work with clang. -## [2004/schnitzi](/2004/schnitzi/schnitzi.c) ([README.md](/2004/schnitzi/README.md])) +## [2004/schnitzi](2004/schnitzi/schnitzi.c) ([README.md](2004/schnitzi/README.md])) [Cody](#cody) made this use `fgets(3)`. @@ -2778,12 +2775,12 @@ fast in modern systems, especially the scrolling text of [schnitzi.inp1](schnitzi.inp1). -## [2004/sds](/2004/sds/sds.c) ([README.md](/2004/sds/README.md)) +## [2004/sds](2004/sds/sds.c) ([README.md](2004/sds/README.md)) -[Cody](#cody) added the [try.sh](/2004/sds/try.sh) script. +[Cody](#cody) added the [try.sh](2004/sds/try.sh) script. -## [2004/vik2](/2004/vik2/vik2.c) ([README.md](/2004/vik2/README.md)) +## [2004/vik2](2004/vik2/vik2.c) ([README.md](2004/vik2/README.md)) [Cody](#cody) fixed this to compile in Linux. Although it compiled cleanly in macOS (and BSD?) the code failed to compile at all in Linux due to: @@ -2829,63 +2826,63 @@ make: *** [Makefile:133: vik2] Error 1 Unfortunately the fix required heavy modification to the original file (see below) and also inclusion of what used to be generated by the -[Makefile](/2004/vik2/Makefile) but now it at least works for both Linux and +[Makefile](2004/vik2/Makefile) but now it at least works for both Linux and macOS. As for the fix itself it required changing the C pre-processor macros that resulted in macros themselves like `#ifdef`, `#else` etc. to be `#ifdef`, -`#else` etc. and also the inclusion of the file [vik2_1.c](/2004/vik2/vik2_1.c) +`#else` etc. and also the inclusion of the file [vik2_1.c](2004/vik2/vik2_1.c) (which actually includes itself, once directly and now by `__FILE__`) which used to be generated by the Makefile via `cc -E`. Cody also made it so that the `FNAME` is (for the entry file itself and `vik2_1.c`: it shouldn't be done for -[vik2.possible.cat.death.c](/2004/vik2/vik2.possible.cat.death.c)!) `__FILE__` +[vik2.possible.cat.death.c](2004/vik2/vik2.possible.cat.death.c)!) `__FILE__` just to make it a bit easier to compile. # 2005 -## [2005/aidan](/2005/aidan/aidan.c) ([README.md](/2005/aidan/README.md])) +## [2005/aidan](2005/aidan/aidan.c) ([README.md](2005/aidan/README.md])) [Cody](#cody) fixed the test script, described by the author in their remarks, to refer to the proper compiled program (it's hardcoded). This had never been done and it broke the script. -He also added the [alt code](/2005/aidan/README.md#alternate-code) based on the +He also added the [alt code](2005/aidan/README.md#alternate-code) based on the author's remarks which is a different approach than the one used and which 'is slower (particularly in worst-case or nearly so scenarios), inelegant, and not a good starting place for sudoku generation.' -The [try.sh](/2005/aidan/try.sh) and [try.alt.sh](/2005/aidan/try.alt.sh) +The [try.sh](2005/aidan/try.sh) and [try.alt.sh](2005/aidan/try.alt.sh) correspond to the entry and alt code respectively. Cody added the `make test` and `make test-n0` rules for easier use of the test suite. -## [2005/anon](/2005/anon/anon.c) ([README.md](/2005/anon/README.md])) +## [2005/anon](2005/anon/anon.c) ([README.md](2005/anon/README.md])) [Cody](#cody) fixed a problem where in some systems (like macOS) the `stty sane` would not work and end up causing a bus error. Instead of `stty sane` it uses `stty echo` which is what it was trying to accomplish. -The author noted that one can define `NO_STTY` to not use `stty(/1)` at all +The author noted that one can define `NO_STTY` to not use `stty(1)` at all (either to prevent having to hit enter or to turn echo off/on) which is explained in the README.md. -Cody added the [alt code](/2005/anon/README.md#alternate-code) with vi(m) like +Cody added the [alt code](2005/anon/README.md#alternate-code) with vi(m) like movements. -## [2005/boutines](/2005/boutines/boutines.c) ([README.md](/2005/boutines/README.md])) +## [2005/boutines](2005/boutines/boutines.c) ([README.md](2005/boutines/README.md])) -[Cody](#cody) added the [input.txt](/2005/boutines/input.txt) data file based on suggested +[Cody](#cody) added the [input.txt](2005/boutines/input.txt) data file based on suggested input from the author, adapting it to a command to try out. -## [2005/giljade](/2005/giljade/giljade.c) ([README.md](/2005/giljade/README.md])) +## [2005/giljade](2005/giljade/giljade.c) ([README.md](2005/giljade/README.md])) After Landon fixed the entry to compile with clang Cody noticed this does not work at all in modern systems (see below). He fixed this to work and then he @@ -2941,7 +2938,7 @@ or as a diff: +;;char*A=0,*_,*R,*Q, D[9999],*r,l[9999],T=42, M,V=32;int *E,k[9999],B[1 <<+21],*N=B+ ``` -Cody also added the [try.sh](/2005/giljade/try.sh) script which also lets one see +Cody also added the [try.sh](2005/giljade/try.sh) script which also lets one see the beauty of the entry without having to use vi(m), should they be afraid of getting stuck in it (and for ease of use). :-) @@ -2950,22 +2947,22 @@ Finally, to improve upon the test-suite provided by the program, Cody added the temporary file the compilation including the 'Line' lines. After that is done it uses `grep -c` on the file to show that there are indeed as many versions the program generates as the author states, 180. If it does not find 180 it is an -error; otherwise it is success. It uses [test.sh](/2005/giljade/test.sh). +error; otherwise it is success. It uses [test.sh](2005/giljade/test.sh). -## [2005/jetro](/2005/jetro/jetro.c) ([README.md](/2005/jetro/README.md)) +## [2005/jetro](2005/jetro/jetro.c) ([README.md](2005/jetro/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) for systems like Linux that seem to not do it implicitly (like macOS does). -## [2005/klausler](/2005/klausler/klausler.c) ([README.md](/2005/klausler/README.md)) +## [2005/klausler](2005/klausler/klausler.c) ([README.md](2005/klausler/README.md)) -[Cody](#cody) added the [try.sh](/2005/klausler/try.sh) script. +[Cody](#cody) added the [try.sh](2005/klausler/try.sh) script. -## [2005/mikeash](/2005/mikeash/mikeash.c) ([README.md](/2005/mikeash/README.md)) +## [2005/mikeash](2005/mikeash/mikeash.c) ([README.md](2005/mikeash/README.md)) [Cody](#cody) fixed this to work in Linux. The problem was an unknown escape sequence, `\N`, which caused a funny compiler error: @@ -2994,10 +2991,10 @@ what is supposed to happen. It is not known, however, if having to change the `\N` to `\n` ended up breaking any LISP. The other examples given by the author also show correct output though. -Cody also added the [try.sh](/2005/mikeash/try.sh) script. +Cody also added the [try.sh](2005/mikeash/try.sh) script. -## [2005/mynx](/2005/mynx/mynx.c) ([README.md](/2005/mynx/README.md])) +## [2005/mynx](2005/mynx/mynx.c) ([README.md](2005/mynx/README.md])) [Cody](#cody) fixed this so that the [configure](source/configure) script (which is not needed but part of the entry) would work with compilers that have by default @@ -3009,15 +3006,15 @@ might be some command line that will let it work that way or perhaps someone wants to add the necessary code. -## [2005/persano](/2005/persano/persano.c) ([README.md](/2005/persano/README.md])) +## [2005/persano](2005/persano/persano.c) ([README.md](2005/persano/README.md])) [Cody](#cody) added the (untested) [alternate -code](/2005/persano/README.md#alternate-code) which should work for Windows as it +code](2005/persano/README.md#alternate-code) which should work for Windows as it sets binary mode on `stdout`. It is untested as Cody has no Windows system to test it on. -## [2005/sykes](/2005/sykes/sykes.c) ([README.md](/2005/sykes/README.md])) +## [2005/sykes](2005/sykes/sykes.c) ([README.md](2005/sykes/README.md])) [Cody](#cody) added the saved (with the `SAVE` command) BASIC program `PET` which was: @@ -3045,10 +3042,10 @@ BY STEPHEN SYKES! to both save and test run it. -Cody added the [try.sh](/2005/sykes/try.sh) script which runs in a loop with a +Cody added the [try.sh](2005/sykes/try.sh) script which runs in a loop with a menu of things one might wish to try, asking if they wish to continue when done. -Cody added the script [test.sh](/2005/sykes/test.sh) and the make rule `test` to +Cody added the script [test.sh](2005/sykes/test.sh) and the make rule `test` to run the test suite. The program will enter an infinite loop after it runs so you have to hit ctrl-c to end it which the script tells you. @@ -3056,14 +3053,14 @@ The scripts note every time that one will have to send ctrl-c or whatever their interrupt is set to in order to exit the program. -## [2005/timwi](/2005/timwi/timwi.c) ([README.md](/2005/timwi/README.md])) +## [2005/timwi](2005/timwi/timwi.c) ([README.md](2005/timwi/README.md])) -[Cody](#cody) added [try.sh](/2005/timwi/try.sh). It only has one command as he doesn't +[Cody](#cody) added [try.sh](2005/timwi/try.sh). It only has one command as he doesn't want to knacker his brain any more than it might or might not already be :-) and he doesn't want to damage anyone else's brain either. :-) -## [2005/toledo](/2005/toledo/toledo.c) ([README.md](/2005/toledo/README.md)) +## [2005/toledo](2005/toledo/toledo.c) ([README.md](2005/toledo/README.md)) [Cody](#cody) fixed this to compile with some versions of clang which have an additional defect where `main()` can only have 0, 2 or 3 args (it was 4). It now calls @@ -3072,7 +3069,7 @@ another function that takes 4 args and which is what used to be `main()`. The alternate versions were also fixed. -## [2005/vince](/2005/vince/vince.c) ([README.md](/2005/vince/README.md)) +## [2005/vince](2005/vince/vince.c) ([README.md](2005/vince/README.md)) [Cody](#cody) fixed this in the case that the program is compiled or linked/copies to another file name: the code constructed the source code file name in a clever @@ -3088,31 +3085,31 @@ if one runs it from another directory, specifying the directory, it'll not catch # 2006 -## [2006/birken](/2006/birken/birken.c) ([README.md](/2006/birken/README.md])) +## [2006/birken](2006/birken/birken.c) ([README.md](2006/birken/README.md])) [Cody](#cody) fixed a segfault in macOS with this entry. The problem was a missing `+1` for strlen() with malloc(). This prevented it from working. -Cody also added the [try.sh](/2006/birken/try.sh) script. +Cody also added the [try.sh](2006/birken/try.sh) script. -## [2006/borsanyi](/2006/borsanyi/borsanyi.c) ([README.md](/2006/borsanyi/README.md])) +## [2006/borsanyi](2006/borsanyi/borsanyi.c) ([README.md](2006/borsanyi/README.md])) [Cody](#cody) fixed the Makefile under some systems where the `lpthread` was not implicitly linked in. -## [2006/hamre](/2006/hamre/hamre.c) ([README.md](/2006/hamre/README.md)) +## [2006/hamre](2006/hamre/hamre.c) ([README.md](2006/hamre/README.md)) [Cody](#cody) fixed this so that it will not crash without an arg after it was suggested this should be fixed. -Cody also added the [try.sh](/2006/hamre/try.sh) script. +Cody also added the [try.sh](2006/hamre/try.sh) script. -## [2006/monge](/2006/monge/monge.c) ([README.md](/2006/monge/README.md])) +## [2006/monge](2006/monge/monge.c) ([README.md](2006/monge/README.md])) -[Cody](#cody) added the [alternate code](/2006/monge/README.md#alternate-code) that lets +[Cody](#cody) added the [alternate code](2006/monge/README.md#alternate-code) that lets one resize the image and redefine the number of iterations. Cody also fixed the Makefile to use `sdl-config` (which is what the author @@ -3127,19 +3124,19 @@ feature but one which we will accept fixes to. See [2006/monge in bugs.md](/bugs.md#2006-monge). -## [2006/night](/2006/night/night.c) ([README.md](/2006/night/README.md])) +## [2006/night](2006/night/night.c) ([README.md](2006/night/README.md])) As [Cody](#cody) is a lost :-) `vim` user he took the author's remarks to add support -back for arrow keys in the [alternate version](/2006/night/night.alt.c). +back for arrow keys in the [alternate version](2006/night/night.alt.c). -## [2006/sloane](/2006/sloane/sloane.c) ([README.md](/2006/sloane/README.md])) +## [2006/sloane](2006/sloane/sloane.c) ([README.md](2006/sloane/README.md])) [Cody](#cody) fixed this entry to work with clang which has a defect with the args to `main()`: it requires specific types: `int` and `char **` for the first and latter args. -Cody also provided the [alternate version](/2006/sloane/sloane.alt.c), which +Cody also provided the [alternate version](2006/sloane/sloane.alt.c), which allows one to see what is going on in modern systems, and which we recommend one use _first_. @@ -3161,39 +3158,39 @@ Since the author suggested that the lack of certain `#include`s might break the program in some systems he also added `-include ...` to the Makefile as well. -## [2006/stewart](/2006/stewart/stewart.c) ([README.md](/2006/stewart/README.md])) +## [2006/stewart](2006/stewart/stewart.c) ([README.md](2006/stewart/README.md])) [Cody](#cody) fixed it so that if the file cannot be opened it exits rather than trying to read from the file. -## [2006/sykes1](/2006/sykes1/sykes1.c) ([README.md](/2006/sykes1/README.md])) +## [2006/sykes1](2006/sykes1/sykes1.c) ([README.md](2006/sykes1/README.md])) -[Cody](#cody) provided the [alt code](/2006/sykes1/README.md#alternate-code) based on the -author's remarks and the [try.sh](/2006/sykes1/try.sh) script. +[Cody](#cody) provided the [alt code](2006/sykes1/README.md#alternate-code) based on the +author's remarks and the [try.sh](2006/sykes1/try.sh) script. -Cody also provided the [bedlam-cubes.pdf](/2006/sykes1/bedlam-cubes.pdf) file, +Cody also provided the [bedlam-cubes.pdf](2006/sykes1/bedlam-cubes.pdf) file, obtained from the Internet Wayback Machine, as the file was no longer available. The video was also no longer available but Cody found an alternative and added it to the repo as well. -## [2006/sykes2](/2006/sykes2/sykes2.c) ([README.md](/2006/sykes2/README.md])) +## [2006/sykes2](2006/sykes2/sykes2.c) ([README.md](2006/sykes2/README.md])) [Cody](#cody), out of an abundance of caution for `clang`'s defects, made `main()` have to args instead of 1 as some versions report that `main()` must have 0, 2 or 3 args, even though at least one of those versions allows 1 arg only. -Cody also added the [try.sh](/2006/sykes2/try.sh) script for easier use of the +Cody also added the [try.sh](2006/sykes2/try.sh) script for easier use of the entry to show the clock update in real time. -## [2006/toledo1](/2006/toledo1/toledo1.c) ([README.md](/2006/toledo1/README.md])) +## [2006/toledo1](2006/toledo1/toledo1.c) ([README.md](2006/toledo1/README.md])) -[Cody](#cody) added the [try.sh](/2006/toledo1/try.sh) script. +[Cody](#cody) added the [try.sh](2006/toledo1/try.sh) script. -## [2006/toledo2](/2006/toledo2/toledo2.c) ([README.md](/2006/toledo2/README.md])) +## [2006/toledo2](2006/toledo2/toledo2.c) ([README.md](2006/toledo2/README.md])) [Cody](#cody) fixed a segfault in this program which was making it fail to work under macOS - it did not seem to be a problem under Linux, at least not fedora. The @@ -3205,7 +3202,7 @@ port this to systems that have the non-standard `kbhit()` and `getch()` (not the one from curses) which is typically (always?) in `conio.h`. -## [2006/toledo3](/2006/toledo3/toledo3.c) ([README.md](/2006/toledo3/README.md])) +## [2006/toledo3](2006/toledo3/toledo3.c) ([README.md](2006/toledo3/README.md])) [Cody](#cody) fixed a crash and a display problem in this entry so that it now works in modern (64-bit) systems. The crash appears to only occur in macOS but the fix @@ -3214,49 +3211,49 @@ so some `int`s were changed to `long`s. The display problem might or might not have been a problem in Linux with the old `int`s but this is no longer known. Cody also added the code that _should_ work for Windows, -[toledo3.alt.c](/2006/toledo3/toledo3.alt.c), based on the author's remarks. +[toledo3.alt.c](2006/toledo3/toledo3.alt.c), based on the author's remarks. We're not able to test this. # 2011 -## [2011/akari](/2011/akari/akari.c) ([README.md](/2011/akari/README.md])) +## [2011/akari](2011/akari/akari.c) ([README.md](2011/akari/README.md])) -[Cody](#cody) added the [try.sh](/2011/akari/try.sh) script. +[Cody](#cody) added the [try.sh](2011/akari/try.sh) script. -## [2011/blakely](/2011/blakely/blakely.c) ([README.md](/2011/blakely/README.md])) +## [2011/blakely](2011/blakely/blakely.c) ([README.md](2011/blakely/README.md])) -[Cody](#cody) added the [try.sh](/2011/blakely/try.sh) script. +[Cody](#cody) added the [try.sh](2011/blakely/try.sh) script. -## [2011/borsanyi](/2011/borsanyi/borsanyi.c) ([README.md](/2011/borsanyi/README.md])) +## [2011/borsanyi](2011/borsanyi/borsanyi.c) ([README.md](2011/borsanyi/README.md])) [Cody](#cody), out of an abundance of caution, added a second arg to `main()` as some versions of clang complain about not only the type of each arg to `main()` but the number of args as well. -Cody also added the [try.sh](/2011/borsanyi/try.sh) script. +Cody also added the [try.sh](2011/borsanyi/try.sh) script. -## [2011/dlowe](/2011/dlowe/dlowe.c) ([README.md](/2011/dlowe/README.md])) +## [2011/dlowe](2011/dlowe/dlowe.c) ([README.md](2011/dlowe/README.md])) -[Cody](#cody) added the [try.sh](/2011/dlowe/try.sh) script. +[Cody](#cody) added the [try.sh](2011/dlowe/try.sh) script. -## [2011/eastman](/2011/eastman/eastman.c) ([README.md](/2011/eastman/README.md])) +## [2011/eastman](2011/eastman/eastman.c) ([README.md](2011/eastman/README.md])) -[Cody](#cody) added the video file [boing-ball.mp4](/2011/eastman) which is the demo the +[Cody](#cody) added the video file [boing-ball.mp4](2011/eastman) which is the demo the author referred to. -## [2011/fredriksson](/2011/fredriksson/fredriksson.c) ([README.md](/2011/fredriksson/README.md])) +## [2011/fredriksson](2011/fredriksson/fredriksson.c) ([README.md](2011/fredriksson/README.md])) -[Cody](#cody) added the [try.sh](/2011/fredriksson/try.sh) script. +[Cody](#cody) added the [try.sh](2011/fredriksson/try.sh) script. -## [2011/goren](/2011/goren/goren.c) ([README.md](/2011/goren/README.md])) +## [2011/goren](2011/goren/goren.c) ([README.md](2011/goren/README.md])) [Cody](#cody) fixed this for macOS. Before the fix it segfaulted. It worked fine under Linux. After fixing it it was noticed that the author stated it does not work @@ -3264,37 +3261,37 @@ for 64-bit so it was then tested as a 32-bit binary (Linux) and 64-bit binary (Linux, macOS) and both work. It was fixed by changing some `int`s to `long`s and now it does work with 64-bit systems as well as 32-bit systems. -Cody also added the [try.sh](/2011/goren/try.sh) script. +Cody also added the [try.sh](2011/goren/try.sh) script. Cody added the following words of wisdom: '"this" is not a pipe but "!" is'. -## [2011/hamaji](/2011/hamaji/hamaji.c) ([README.md](/2011/hamaji/README.md])) +## [2011/hamaji](2011/hamaji/hamaji.c) ([README.md](2011/hamaji/README.md])) -[Cody](#cody) added the [try.sh](/2011/hamaji/try.sh) script and the `.nono` files -[conway-game-of-life.nono](/2011/hamaji/conway-game-of-life.nono), -[multi-solutions.nono](/2011/hamaji/multi-solutions.nono), -[no-solution.nono](/2011/hamaji/no-solution.nono), -[plus.nono](/2011/hamaji/plus.nono) and [smiley.nono](/2011/hamaji/smiley.nono). +[Cody](#cody) added the [try.sh](2011/hamaji/try.sh) script and the `.nono` files +[conway-game-of-life.nono](2011/hamaji/conway-game-of-life.nono), +[multi-solutions.nono](2011/hamaji/multi-solutions.nono), +[no-solution.nono](2011/hamaji/no-solution.nono), +[plus.nono](2011/hamaji/plus.nono) and [smiley.nono](2011/hamaji/smiley.nono). The latter two `.nono` files were taken from and the others were from the authors' remarks. -## [2011/hou](/2011/hou/hou.c) ([README.md](/2011/hou/README.md])) +## [2011/hou](2011/hou/hou.c) ([README.md](2011/hou/README.md])) -[Cody](#cody) added the [try.sh](/2011/hou/try.sh) script. +[Cody](#cody) added the [try.sh](2011/hou/try.sh) script. -## [2011/konno](/2011/konno/konno.c) ([README.md](/2011/konno/README.md])) +## [2011/konno](2011/konno/konno.c) ([README.md](2011/konno/README.md])) [Cody](#cody) fixed the program to not crash if no arg was specified as this was not a documented feature. -Cody also added the [try.sh](/2011/konno/try.sh) script. +Cody also added the [try.sh](2011/konno/try.sh) script. -## [2011/richards](/2011/richards/richards.c) ([README.md](/2011/richards/README.md])) +## [2011/richards](2011/richards/richards.c) ([README.md](2011/richards/README.md])) [Cody](#cody) fixed a minor problem that showed up in both Linux and macOS. He notes however that as of this time this entry does not work properly with macOS at @@ -3303,58 +3300,58 @@ an inherent problem in macOS to do with executing code in in memory/JIT and in particular with the silicon chip. See [bugs.md](/bugs.md) for more details and a document from Apple about how it might be fixed if anyone is brave enough to try. If they do they might want to look also at -[richards.alt.c](/2011/richards/richards.alt.c), for whatever it might or might +[richards.alt.c](2011/richards/richards.alt.c), for whatever it might or might not be worth. -## [2011/toledo](/2011/toledo/toledo.c) ([README.md](/2011/toledo/README.md])) +## [2011/toledo](2011/toledo/toledo.c) ([README.md](2011/toledo/README.md])) -[Cody](#cody) added two [alternate versions](/2011/toledo/README.md#alternate-code): one that +[Cody](#cody) added two [alternate versions](2011/toledo/README.md#alternate-code): one that lets one reconfigure the controls and also the size of the game and another version that should work in Windows, based on the author's remarks and support file, `layer.c`. -## [2011/vik](/2011/vik/vik.c) ([README.md](/2011/vik/README.md])) +## [2011/vik](2011/vik/vik.c) ([README.md](2011/vik/README.md])) -[Cody](#cody) added an [alternate version](/2011/vik/README.md#alternate-code) for Windows +[Cody](#cody) added an [alternate version](2011/vik/README.md#alternate-code) for Windows based on the author's comments (along with looking up the function for the right header files). To build try the alt rule of the Makefile. -## [2011/zucker](/2011/zucker/zucker.c) ([README.md](/2011/zucker/README.md])) +## [2011/zucker](2011/zucker/zucker.c) ([README.md](2011/zucker/README.md])) -[Cody](#cody) added [alt code](/2011/zucker/README.md#alternate-code) that should work on +[Cody](#cody) added [alt code](2011/zucker/README.md#alternate-code) that should work on Windows, based on the author's remarks that if the system distinguishes binary and text then `stdout` needs to be set to binary mode. Cody also added the PDF file -[sphere-tracing.pdf](/2011/zucker/sphere-tracing.pdf) in case the link eventually +[sphere-tracing.pdf](2011/zucker/sphere-tracing.pdf) in case the link eventually dies. # 2012 -## [2012/blakely](/2012/blakely/blakely.c) ([README.md](/2012/blakely/README.md)) +## [2012/blakely](2012/blakely/blakely.c) ([README.md](2012/blakely/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) as not all systems do this implicitly (Linux doesn't seem to but macOS does). -Cody also added the [try.sh](/2012/blakely/try.sh) script. +Cody also added the [try.sh](2012/blakely/try.sh) script. -## [2012/deckmyn](/2012/deckmyn/deckmyn.c) ([README.md](/2012/deckmyn/README.md])) +## [2012/deckmyn](2012/deckmyn/deckmyn.c) ([README.md](2012/deckmyn/README.md])) -[Cody](#cody) added the [try.sh](/2012/deckmyn/try.sh) script. +[Cody](#cody) added the [try.sh](2012/deckmyn/try.sh) script. -## [2012/endoh1](/2012/endoh1/endoh1.c) ([README.md](/2012/endoh1/README.md)) +## [2012/endoh1](2012/endoh1/endoh1.c) ([README.md](2012/endoh1/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) as not all systems do this implicitly (Linux doesn't seem to but macOS does). -Cody also added two [alt versions](/2012/endoh1/README.md#alternate-code) that +Cody also added two [alt versions](2012/endoh1/README.md#alternate-code) that let one control how fast the fluid moves (how long to sleep in between writes) and also the gravity factor, the pressure factor and the viscosity factor as well as an alarm that lets one run it in a loop without having to hit @@ -3362,28 +3359,28 @@ ctrl-c/intr in between (the alarm can be disabled, however). The two different versions is because there are two versions: the original and the colour version added by the author, [Yusuke](#yusuke), at the request of the judges. -Cody also added the [try.alt.sh](/2012/endoh1/try.alt.sh) script compiles the alt +Cody also added the [try.alt.sh](2012/endoh1/try.alt.sh) script compiles the alt code in two ways, one with setting the gravity factor to `I` and another with the default, and which is run on the source file and each of the text files supplied by the author. This code has an alarm set at 10 seconds so that one need not hit ctrl-c/intr in between .. say to make it more fluid :-) -The [endoh1.alt2.c](/2012/endoh1/endoh1.alt.c) was provided by Yusuke as a +The [endoh1.alt2.c](2012/endoh1/endoh1.alt.c) was provided by Yusuke as a de-obfuscated version. -## [2012/endoh2](/2012/endoh2/endoh2.c) ([README.md](/2012/endoh2/README.md)) +## [2012/endoh2](2012/endoh2/endoh2.c) ([README.md](2012/endoh2/README.md)) -[Cody](#cody) added the [try.sh](/2012/endoh2/try.sh) script that runs +[Cody](#cody) added the [try.sh](2012/endoh2/try.sh) script that runs everything, filtered through less. Cody also fixed a typo in the ruby script -[find-font-table.rb](/2012/endoh2/find-font-table.rb). +[find-font-table.rb](2012/endoh2/find-font-table.rb). -## [2012/grothe](/2012/grothe/grothe.c) ([README.md](/2012/grothe/README.md)) +## [2012/grothe](2012/grothe/grothe.c) ([README.md](2012/grothe/README.md)) -[Cody](#cody) added the [try.sh](/2012/grothe/try.sh) script. +[Cody](#cody) added the [try.sh](2012/grothe/try.sh) script. Cody also changed `argv` to be not `const char **` but `char **`, mostly out of an abundance of caution in case clang, which already imposes restrictions on the @@ -3393,21 +3390,21 @@ restrict them. Cody also restored the original code from the archive. -## [2012/hamano](/2012/hamano/hamano.c) ([README.md](/2012/hamano/README.md])) +## [2012/hamano](2012/hamano/hamano.c) ([README.md](2012/hamano/README.md])) -[Cody](#cody) added the [try.sh](/2012/hamano/try.sh) script. +[Cody](#cody) added the [try.sh](2012/hamano/try.sh) script. -## [2012/hou](/2012/hou/hou.c) ([README.md](/2012/hou/README.md])) +## [2012/hou](2012/hou/hou.c) ([README.md](2012/hou/README.md])) -[Cody](#cody) added the [try.sh](/2012/hou/try.sh) script and restored the original [hint -markdown file](/2012/hou/hint.md) as the changes made when converting to a GitHub +[Cody](#cody) added the [try.sh](2012/hou/try.sh) script and restored the original [hint +markdown file](2012/hou/hint.md) as the changes made when converting to a GitHub README.md made the generated html not look correct; it did not have a title, a stylesheet etc. due to the fact that there is no `#` header (which specified title and stylesheet) and other formatting changes. -## [2012/kang](/2012/kang/kang.c) ([README.md](/2012/kang/README.md])) +## [2012/kang](2012/kang/kang.c) ([README.md](2012/kang/README.md])) [Cody](#cody) added alt code that fixes a problem where in German 'v' sounds like 'f' which the program has as 'f': with the original version it would translate @@ -3421,9 +3418,9 @@ about it. Using both, however, allows one to experience different capabilities and also enjoy or appreciate the entry even more, given how simple the difference is. -Cody also added five scripts: [en.sh](/2012/kang/en.sh), -[de.sh](/2012/kang/de.sh), [en.alt.sh](/2012/kang/en.alt.sh) and -[de.alt.sh](/2012/de.alt.sh) which count from 0 through 13 in English and German +Cody also added five scripts: [en.sh](2012/kang/en.sh), +[de.sh](2012/kang/de.sh), [en.alt.sh](2012/kang/en.alt.sh) and +[de.alt.sh](2012/de.alt.sh) which count from 0 through 13 in English and German using the original entry and the alt version respectively. In the German scripts it uses the umlaut and also does it without the umlaut @@ -3431,36 +3428,36 @@ In the German scripts it uses the umlaut and also does it without the umlaut either version but the `.alt.sh` versions default to the `alt` version whereas the other defaults to the submitted entry. See the README.md for details. -The fifth script, [try.sh](/2012/kang/try.sh), runs a sequence of commands to +The fifth script, [try.sh](2012/kang/try.sh), runs a sequence of commands to show different languages and numbers. -## [2012/konno](/2012/konno/konno.c) ([README.md](/2012/konno/README.md])) +## [2012/konno](2012/konno/konno.c) ([README.md](2012/konno/README.md])) -[Cody](#cody) added the [try.sh](/2012/konno/try.sh) script. +[Cody](#cody) added the [try.sh](2012/konno/try.sh) script. -## [2012/omoikane](/2012/omoikane/omoikane.c) ([README.md](/2012/omoikane/README.md])) +## [2012/omoikane](2012/omoikane/omoikane.c) ([README.md](2012/omoikane/README.md])) -[Cody](#cody) added the [try.sh](/2012/omoikane/try.sh) script. +[Cody](#cody) added the [try.sh](2012/omoikane/try.sh) script. -Cody also added the [alternate code](/2012/omoikane/README.md#alternate-code) +Cody also added the [alternate code](2012/omoikane/README.md#alternate-code) which will, if no arg is specified, read in the program itself, rather than `/dev/urandom`. This is mostly useful for those without a `/dev/urandom` device file (the default for the entry). The second alternate version is like the first except that it also sets binary mode on `stdin` and `stdout` which should theoretically make it work in Windows. -Cody also added the [try.alt.sh](/2012/omoikane/try.alt.sh) script that is like +Cody also added the [try.alt.sh](2012/omoikane/try.alt.sh) script that is like the `try.sh` script but which uses the (first version of the) alt code instead. -## [2012/tromp](/2012/tromp/tromp.c) ([README.md](/2012/tromp/README.md)) +## [2012/tromp](2012/tromp/tromp.c) ([README.md](2012/tromp/README.md)) -[Cody](#cody) added the [try.sh](/2012/tromp/try.sh) script. +[Cody](#cody) added the [try.sh](2012/tromp/try.sh) script. -## [2012/vik](/2012/vik/vik.c) ([README.md](/2012/vik/README.md])) +## [2012/vik](2012/vik/vik.c) ([README.md](2012/vik/README.md])) Based on the author's description it should be able to get this entry to work for Windows. With his instructions Cody added the alternate version that does @@ -3469,12 +3466,12 @@ this for the few who might use Windows. We're not sure whether we want to thank Cody or not for this :-) and he's not sure if he wants to be thanked either :-) but we appreciate it nonetheless. -Cody also added the [try.sh](/2012/vik/try.sh) script. +Cody also added the [try.sh](2012/vik/try.sh) script. -## [2012/zeitak](/2012/zeitak/zeitak.c) ([README.md](/2012/zeitak/README.md])) +## [2012/zeitak](2012/zeitak/zeitak.c) ([README.md](2012/zeitak/README.md])) -[Cody](#cody) added the `make test` rule and the [test.sh](/2012/zeitak/test.sh) along +[Cody](#cody) added the `make test` rule and the [test.sh](2012/zeitak/test.sh) along with a number of files that will be correctly be flagged as incorrect (including a text file to show that it's not that it parses C but rather just matching pairs though that should be obvious) and also some that are correct including @@ -3484,7 +3481,7 @@ pairs though that should be obvious) and also some that are correct including # 2013 -## [2013/birken](/2013/birken/birken.c) ([README.md](/2013/birken/README.md])) +## [2013/birken](2013/birken/birken.c) ([README.md](2013/birken/README.md])) [Cody](#cody) changed the `return 0;` at the end of the program to be `return system("reset");` (via redefining `exit(3)` so that the column ending would be @@ -3496,22 +3493,22 @@ Cody also added the alt version that lets one control how fast the painting is done, based on the author's recommendations, except that Cody made it configurable at compile time. -Cody also added the [try.sh](/2013/birken/try.sh) script for the entry and the -[try.alt.sh](/2013/birken/try.alt.sh) script for the alt code. +Cody also added the [try.sh](2013/birken/try.sh) script for the entry and the +[try.alt.sh](2013/birken/try.alt.sh) script for the alt code. -## [2013/cable1](/2013/cable1/cable1.c) ([README.md](/2013/cable1/README.md])) +## [2013/cable1](2013/cable1/cable1.c) ([README.md](2013/cable1/README.md])) -[Cody](#cody) added the [try.sh](/2013/cable1/try.sh) script which also has an +[Cody](#cody) added the [try.sh](2013/cable1/try.sh) script which also has an joke Easter egg in it based on the judges' remarks. -## [2013/cable2](/2013/cable2/cable2.c) ([README.md](/2013/cable2/README.md])) +## [2013/cable2](2013/cable2/cable2.c) ([README.md](2013/cable2/README.md])) -[Cody](#cody) added the [try.sh](/2013/cable2/try.sh) script. +[Cody](#cody) added the [try.sh](2013/cable2/try.sh) script. -## [2013/cable3](/2013/cable3/cable3.c) ([README.md](/2013/cable3/README.md])) +## [2013/cable3](2013/cable3/cable3.c) ([README.md](2013/cable3/README.md])) [Cody](#cody) fixed this to compile with modern systems. The problems were that `localtime()` is used differently and `time.h` being included (with @@ -3533,26 +3530,26 @@ been compiled by running `make clobber all || exit 1` and he also made it pass `shellcheck` (using `[[ .. ]]` over `[ .. ]`). As well, based on the author's remarks, Cody added the [alternate -code](/2013/cable3/cable3.alt.c) which should be compilable for Windows/MS Visual +code](2013/cable3/cable3.alt.c) which should be compilable for Windows/MS Visual Studio. This is done by in the compile line undefining `KB` (`-UKB`) and then in the source code defining `KB` to what the author suggested, `(kb=H(8),kbhit())&&(r[1190]=getch(),H(7))`. It need hardly be mentioned that this will not link in Unix systems (including macOS). -Finally Cody provided the [bios.asm](/2013/cable3/bios.asm) that the author +Finally Cody provided the [bios.asm](2013/cable3/bios.asm) that the author referred to, found at the [GitHub repo for the entry](https://github.com/adriancable/8086tiny/tree/master), and the 'ready-made 40MB hard disk image containing a whole bunch of software' in `hd.img` that the author linked to at `https://bitly.com/1bU8URK`. -## [2013/dlowe](/2013/dlowe/dlowe.c) ([README.md](/2013/dlowe/README.md)) +## [2013/dlowe](2013/dlowe/dlowe.c) ([README.md](2013/dlowe/README.md)) [Cody](#cody) added the source code that we suggested one should compile and run with -different compilers as [fun.c](/2013/dlowe/fun.c). He modified the Makefile so +different compilers as [fun.c](2013/dlowe/fun.c). He modified the Makefile so that running `make all` will compile it, saving you the effort. -He also provided the script [slflen.sh](/2013/dlowe/slflen.sh) which is based on +He also provided the script [slflen.sh](2013/dlowe/slflen.sh) which is based on the author's remarks, fixing it for shellcheck and improving upon it (show what files will be processed). This script shows the sparkline of the file lengths (as in `wc -c`). The fixes (but not the improvements) were added to the author's @@ -3564,19 +3561,19 @@ clobber` will delete both and running `make clobber all` will ensure that the symlink is created. The `slflen.sh` script also explicitly makes sure to create the symlink as it uses it, even though it runs `make clobber all`. -Cody also added the [try.sh](/2013/dlowe/try.sh) script to more easily try the +Cody also added the [try.sh](2013/dlowe/try.sh) script to more easily try the program. -He also added the [diff.sh](/2013/dlowe/diff.sh) script which is based on some +He also added the [diff.sh](2013/dlowe/diff.sh) script which is based on some commands to try that he suggested to see how different lengths look. -## [2013/endoh1](/2013/endoh1/endoh1.c) ([README.md](/2013/endoh1/README.md)) +## [2013/endoh1](2013/endoh1/endoh1.c) ([README.md](2013/endoh1/README.md)) -[Cody](#cody) added the [try.sh](/2013/endoh1/try.sh) script. +[Cody](#cody) added the [try.sh](2013/endoh1/try.sh) script. -## [2013/endoh2](/2013/endoh2/endoh2.c) ([README.md](/2013/endoh2/README.md)) +## [2013/endoh2](2013/endoh2/endoh2.c) ([README.md](2013/endoh2/README.md)) [Cody](#cody) fixed the Makefile `check` rule so that it `checks` :-) that both [Ruby](https://www.ruby-lang.org) and [ImageMagick](https://imagemagick.org) are @@ -3598,16 +3595,16 @@ not found. The entry can still be enjoyed if you do not have these tools, however. -## [2013/endoh4](/2013/endoh4/endoh4.c) ([README.md](/2013/endoh4/README.md)) +## [2013/endoh4](2013/endoh4/endoh4.c) ([README.md](2013/endoh4/README.md)) -[Cody](#cody) added the [try.sh](/2013/endoh4/try.sh) script which temporarily +[Cody](#cody) added the [try.sh](2013/endoh4/try.sh) script which temporarily turns off the cursor as suggested by the author, with the addition that if no -file is specified it will feed the source code [endoh4.c](/2013/endoh4/endoh4.c) +file is specified it will feed the source code [endoh4.c](2013/endoh4/endoh4.c) to the program rather than the file specified. It does not try and detect if the file exists or can be read as that will be handled by the shell/program. -## [2013/hou](/2013/hou/hou.c) ([README.md](/2013/hou/README.md)) +## [2013/hou](2013/hou/hou.c) ([README.md](2013/hou/README.md)) [Cody](#cody) fixed the Makefile so that this would work properly. Before this the use of the program just did what the judges' remarks said as far as how it @@ -3636,52 +3633,52 @@ The `LDFLAGS` were updated to have `-lm` as the author suggested it uses the does not). Further, after the file `2013/hou/doc/example.markdown` was moved to -[2013/hou/doc/example.md](/2013/hou/doc/example.md) to match the rest of the repo +[2013/hou/doc/example.md](2013/hou/doc/example.md) to match the rest of the repo this broke `make` which Cody also fixed. -## [2013/mills](/2013/mills/mills.c) ([README.md)[2013/mills/README.md)) +## [2013/mills](2013/mills/mills.c) ([README.md)[2013/mills/README.md)) [Cody](#cody) fixed this so that the server would not refuse the connection -after the first call to `close(/2)`. The problem was that because the backlog to -`listen(/2)` was 1 once the connection closed the server was essentially 'dead'. +after the first call to `close(2)`. The problem was that because the backlog to +`listen(2)` was 1 once the connection closed the server was essentially 'dead'. The backlog was changed to 10 and this solves the problem. It is not known if this was specific to macOS but it was not specific to a browser as Safari and Firefox both had the problem. -## [2013/misaka](/2013/misaka/misaka.c) ([README.md)[2013/misaka/README.md)) +## [2013/misaka](2013/misaka/misaka.c) ([README.md)[2013/misaka/README.md)) -[Cody](#cody) added the [try.sh](/2013/misaka/try.sh) script. +[Cody](#cody) added the [try.sh](2013/misaka/try.sh) script. -## [2013/morgan1](/2013/morgan1/morgan1.c) ([README.md](/2013/morgan1/README.md)) +## [2013/morgan1](2013/morgan1/morgan1.c) ([README.md](2013/morgan1/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) as not all systems do this implicitly (Linux doesn't seem to but macOS does). -## [2013/robison](/2013/robison/robison.c) ([README.md](/2013/robison/README.md)) +## [2013/robison](2013/robison/robison.c) ([README.md](2013/robison/README.md)) -[Cody](#cody) added the [try.sh](/2013/robison/try.sh) script. +[Cody](#cody) added the [try.sh](2013/robison/try.sh) script. # 2014 -## [2014/birken](/2014/birken/prog.c) ([README.md](/2014/birken/README.md)) +## [2014/birken](2014/birken/prog.c) ([README.md](2014/birken/README.md)) [Cody](#cody) provided the [alternate -code](/2014/birken/README.md#alternate-code) that lets one redefine the port to +code](2014/birken/README.md#alternate-code) that lets one redefine the port to bind to in case there is a firewall issue or there is some other reason to not have the default port. Remember that ports < 1024 are privileged. It also lets you redefine the timing constant `STARDATE` (see the author's remarks for more details). -## [2014/deak](/2014/deak/prog.c) ([README.md](/2014/deak/README.md)) +## [2014/deak](2014/deak/prog.c) ([README.md](2014/deak/README.md)) -[Cody](#cody) added [alt code](/2014/deak/README.md#alternate-code) that lets one +[Cody](#cody) added [alt code](2014/deak/README.md#alternate-code) that lets one reconfigure the coordinates but instead of being a modified version of the entry it is the version the author provided which would be what the program would look like if, as the author put it: @@ -3697,9 +3694,9 @@ that was fixed and it also has `#include ` for `putchar(3)`. The `#ifndef..#define..#endif` was not part of the original alt code, of course. -## [2014/endoh1](/2014/endoh1/prog.c) ([README.md](/2014/endoh1/README.md])) +## [2014/endoh1](2014/endoh1/prog.c) ([README.md](2014/endoh1/README.md])) -[Cody](#cody) added the [rake.sh](/2014/endoh1/rake.sh) script and `make rake` +[Cody](#cody) added the [rake.sh](2014/endoh1/rake.sh) script and `make rake` rule that runs the script. This script will check that `rake` is installed and if it is not it will report this and then check that `gem` is installed. It checks that `gem` is installed in this case because `gem` is how you install @@ -3709,54 +3706,54 @@ then it tells you to install a specific gem and then to try again. Finally if `rake` succeeds it will verify that `prog` is executable and if it is it will run it. -Cody also added the [try.sh](/2014/endoh1/try.sh) script. +Cody also added the [try.sh](2014/endoh1/try.sh) script. **_Barely_** worth noting but done nonetheless, Cody renamed the `read_me.md` -file to [spoilers.md](/2014/endoh1/spoilers.md) to be clearer in its purpose as +file to [spoilers.md](2014/endoh1/spoilers.md) to be clearer in its purpose as it is a file with spoilers (and too close to README.md?). -## [2014/endoh2](/2014/endoh2/prog.c) ([README.md](/2014/endoh2/README.md])) +## [2014/endoh2](2014/endoh2/prog.c) ([README.md](2014/endoh2/README.md])) -[Cody](#cody) added the [try.sh](/2014/endoh2/try.sh) script. +[Cody](#cody) added the [try.sh](2014/endoh2/try.sh) script. -## [2014/maffiodo1](/2014/maffiodo1/prog.c) ([README.md](/2014/maffiodo1/README.md])) +## [2014/maffiodo1](2014/maffiodo1/prog.c) ([README.md](2014/maffiodo1/README.md])) [Cody](#cody) fixed the build for this entry: it does not require [SDL2](https://www.libsdl.org) but SDL1 so there were linking errors. -Cody also added the [mario.sh](/2014/maffiodo1/mario.sh) and -[giana.sh](/2014/maffiodo1/giana.sh) scripts which play, respectively, [Super +Cody also added the [mario.sh](2014/maffiodo1/mario.sh) and +[giana.sh](2014/maffiodo1/giana.sh) scripts which play, respectively, [Super Mario Bros](http://en.wikipedia.org/wiki/Super_Mario_Bros.) and one of [The Great Giana Sisters](http://en.wikipedia.org/wiki/The_Great_Giana_Sisters), but which let one configure the width and height of the game. -## [2014/maffiodo2](/2014/maffiodo2/prog.c) ([README.md](/2014/maffiodo2/README.md])) +## [2014/maffiodo2](2014/maffiodo2/prog.c) ([README.md](2014/maffiodo2/README.md])) -[Cody](#cody) added the [try.sh](/2014/maffiodo2/try.sh) script and the -[alternate code](/2014/maffiodo2/README.md#alternate-code) provided by the +[Cody](#cody) added the [try.sh](2014/maffiodo2/try.sh) script and the +[alternate code](2014/maffiodo2/README.md#alternate-code) provided by the author. -## [2014/morgan](/2014/morgan/prog.c) ([README.md](/2014/morgan/README.md)) +## [2014/morgan](2014/morgan/prog.c) ([README.md](2014/morgan/README.md)) -[Cody](#cody) added the [try.sh](/2014/morgan/try.sh) script. +[Cody](#cody) added the [try.sh](2014/morgan/try.sh) script. -## [2014/sinon](/2014/sinon/prog.c) ([README.md](/2014/sinon/README.md)) +## [2014/sinon](2014/sinon/prog.c) ([README.md](2014/sinon/README.md)) [Cody](#cody) fixed the code so that the game can play automatically like it once did. The problem is that it expects a certain file name which was `sinon.c`. The code now refers to `prog.c`. -Cody also added the [try.sh](/2014/sinon/try.sh) script which is an improvement +Cody also added the [try.sh](2014/sinon/try.sh) script which is an improvement over what was once suggested in that when it's over it will ask you if you wish to try again, say because of a jam (see the README.md file for details). -## [2014/skeggs](/2014/skeggs/prog.c) ([README.md](/2014/skeggs/README.md)) +## [2014/skeggs](2014/skeggs/prog.c) ([README.md](2014/skeggs/README.md)) [Cody](#cody) fixed the Makefile to compile this entry in modern systems. The problem was that the `CDEFINE` variable in the Makefile was missing `'`s: the `#define CC` @@ -3774,7 +3771,7 @@ the README.md file for details) so Cody made sure that `make clobber` (via `make clean`) removes those files and so that they are ignored by `.gitignore`. -## [2014/vik](/2014/vik/prog.c) ([README.md](/2014/vik/README.md)) +## [2014/vik](2014/vik/prog.c) ([README.md](2014/vik/README.md)) [Cody](#cody) added an alternate version that is based on the author's remarks that will theoretically work for Microsoft Windows compilers (if anything works in Windows @@ -3782,9 +3779,9 @@ theoretically work for Microsoft Windows compilers (if anything works in Windows that would break it we do not know. -## [2014/wiedijk](/2014/wiedijk/prog.c) ([README.md](/2014/wiedijk/README.md)) +## [2014/wiedijk](2014/wiedijk/prog.c) ([README.md](2014/wiedijk/README.md)) -[Cody](#cody) added the [try.sh](/2014/wiedijk/try.sh) script which is based on +[Cody](#cody) added the [try.sh](2014/wiedijk/try.sh) script which is based on the command to try in the 'try' section but improved so one can more easily specify what ident tool they want to use and also change which sed to use, should they want to. It also checks that both of these two tools exist and are @@ -3795,10 +3792,12 @@ output. # 2015 -## [2015/endoh3](/2015/endoh3/prog.c) ([README.md](/2015/endoh3/README.md])) +## [2015/duble](2015/duble/prog.c) ([README.md](2015/duble/README.md])) -[Cody](#cody) added the [try.sh](/2015/duble/try.sh) script. ->>>>>>> xexyl-duble15-try +[Cody](#cody) added the [try.sh](2015/duble/try.sh) script. + + +## [2015/endoh3](2015/endoh3/prog.c) ([README.md](2015/endoh3/README.md])) [Cody](#cody) fixed this to compile with Linux which was having a problem with duplicate symbols of `main()`. The fix is through the compiler option `-fcommon` which @@ -3809,21 +3808,15 @@ Future](https://en.wikipedia.org/wiki/Back_to_the_Future) using this entry by simply typing `make back_to` or `make mullender`. -## [2015/hou](/2015/hou/prog.c) ([README.md](/2015/hou/README.md)) +## [2015/hou](2015/hou/prog.c) ([README.md](2015/hou/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this (Linux doesn't seem to but macOS does). -<<<<<<< HEAD +Cody also added the RFC 1321 text file, [rfc1321.txt](2015/hou/rfc1321.txt) to +the directory, to make it so one need not download it, and which the README.md +file now links to. -## [2015/howe](/2015/howe/prog.c) ([README.md](/2015/howe/README.md)) - -[Cody](#cody) added the [try.sh](/2015/howe/try.sh) script, downloaded the War -and Peace text file, fixed the [avgtime.sh](/2015/howe/avgtime.sh) script (it -resulted in standard input errors in piping to `bc(/1)`) and added the -[cc.1](/2015/howe/cc.1) man page as not all systems have it (in fact it's -`gcc(/1)` from Rocky Linux). -||||||| 6a936532 ## [2015/howe](2015/howe/prog.c) ([README.md](2015/howe/README.md)) @@ -3832,37 +3825,11 @@ and Peace text file, fixed the [avgtime.sh](2015/howe/avgtime.sh) script (it resulted in standard input errors in piping to `bc(1)`) and added the [cc.1](2015/howe/cc.1) man page as not all systems have it (in fact it's `gcc(1)` from Rocky Linux). -======= -Cody also added the RFC 1321 text file, [rfc1321.txt](2015/hou/rfc1321.txt) to -the directory, to make it so one need not download it, and which the README.md -file now links to. ->>>>>>> xexyl-duble15-try -<<<<<<< HEAD -## [2015/mills1](/2015/mills1/prog.c) ([README.md](/2015/mills1/README.md)) -||||||| 6a936532 ## [2015/mills1](2015/mills1/prog.c) ([README.md](2015/mills1/README.md)) -======= -## [2015/howe](/2015/howe/prog.c) ([README.md](/2015/howe/README.md)) ->>>>>>> xexyl-duble15-try -<<<<<<< HEAD -[Cody](#cody) added the [try.sh](/2015/mills1/try.sh) script which changes the -||||||| 6a936532 [Cody](#cody) added the [try.sh](2015/mills1/try.sh) script which changes the -======= -[Cody](#cody) added the [try.sh](/2015/howe/try.sh) script, downloaded the War -and Peace text file, fixed the [avgtime.sh](/2015/howe/avgtime.sh) script (it -resulted in standard input errors in piping to `bc(/1)`) and added the -[cc.1](/2015/howe/cc.1) man page as not all systems have it (in fact it's -`gcc(/1)` from Rocky Linux). - - -## [2015/mills1](/2015/mills1/prog.c) ([README.md](/2015/mills1/README.md)) - -[Cody](#cody) added the [try.sh](/2015/mills1/try.sh) script which changes the ->>>>>>> xexyl-duble15-try parameters to what we had in the judges' remarks to make it easier (he only died when he tried to mark a reminder complete on the other side of the screen at the same time and he almost survived that, scoring at that point over 90 - but this @@ -3870,17 +3837,17 @@ also involves good eye-hand coordination and playing games like this in the past). -## [2015/mills2](/2015/mills2/prog.c) ([README.md](/2015/mills2/README.md)) +## [2015/mills2](2015/mills2/prog.c) ([README.md](2015/mills2/README.md)) -[Cody](#cody) added the [try.sh](/2015/mills2/try.sh) script. +[Cody](#cody) added the [try.sh](2015/mills2/try.sh) script. -## [2015/muth](/2015/muth/prog.c) ([README.md](/2015/muth/README.md)) +## [2015/muth](2015/muth/prog.c) ([README.md](2015/muth/README.md)) -[Cody](#cody) added the [try.sh](/2015/muth/try.sh) script. +[Cody](#cody) added the [try.sh](2015/muth/try.sh) script. -## [2015/yang](/2015/yang/prog.c) ([README.md](/2015/yang/README.md])) +## [2015/yang](2015/yang/prog.c) ([README.md](2015/yang/README.md])) [Cody](#cody) fixed an unfortunate typo in the Makefile that was preventing some of the files from compiling properly, trying instead to compile already compiled code. @@ -3888,22 +3855,22 @@ files from compiling properly, trying instead to compile already compiled code. He also added explicit linking of libm (`-lm`) for systems that do not do this (Linux seems to not but macOS does). -He also added the [try.sh](/2015/yang/try.sh) script. +He also added the [try.sh](2015/yang/try.sh) script. # 2018 -## [2018/bellard](/2018/bellard/prog.c) ([README.md](/2018/bellard/README.md)) +## [2018/bellard](2018/bellard/prog.c) ([README.md](2018/bellard/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this (Linux doesn't seem to but macOS does). -## [2018/ferguson](/2018/ferguson/prog.c) ([README.md](/2018/ferguson/README.md)) +## [2018/ferguson](2018/ferguson/prog.c) ([README.md](2018/ferguson/README.md)) [Cody](#cody), with irony well intended :-), fixed the [test.sh -script](/2018/ferguson/test.sh) for portability, shellcheck, making it executable +script](2018/ferguson/test.sh) for portability, shellcheck, making it executable and other things, fixed dead links in the man page, updated the test-strings.txt file and other things as well. @@ -3912,7 +3879,7 @@ that's probably true: let's just say that for the IOCCC I'm (Cody) a weasel! :-) (but isn't that kind of the point ? :-) ) -## [2018/hou](/2018/hou/prog.c) ([README.md](/2018/hou/README.md)) +## [2018/hou](2018/hou/prog.c) ([README.md](2018/hou/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this (Linux doesn't seem to but macOS does). @@ -3921,13 +3888,13 @@ that's probably true: let's just say that for the IOCCC I'm (Cody) a weasel! :-) # 2019 -## [2019/burton](/2019/burton/prog.c) ([README.md](/2019/burton/README.md])) +## [2019/burton](2019/burton/prog.c) ([README.md](2019/burton/README.md])) [Cody](#cody) fixed the Makefile which had a bad character, a '%' instead of a '$' which caused a rule to fail. -## [2019/ciura](/2019/ciura/prog.c) ([README.md](/2019/ciura/README.md])) +## [2019/ciura](2019/ciura/prog.c) ([README.md](2019/ciura/README.md])) [Cody](#cody) fixed invalid bytes error in `tr` in the scripts. He notes that at least on his systems (macOS and fedora Linux) the alternative languages do not work. @@ -3935,7 +3902,7 @@ Perhaps that is the wrong locale or it's unable to come up with perfect pangrams but one will not get errors now (it did not work before the fixes either). -## [2019/diels-grabsch1](/2019/diels-grabsch1/prog.c) ([README.md](/2019/diels-grabsch1/README.md])) +## [2019/diels-grabsch1](2019/diels-grabsch1/prog.c) ([README.md](2019/diels-grabsch1/README.md])) [Cody](#cody) made the author's statement that the entry compiles cleanly true by fixing `warning: a function declaration without a prototype is deprecated in all @@ -3943,7 +3910,7 @@ versions of C ` (in main()). Not strictly necessary but if he's making fixes he might as well. -## [2019/diels-grabsch2](/2019/diels-grabsch2/prog.c) ([README.md](/2019/diels-grabsch2/README.md])) +## [2019/diels-grabsch2](2019/diels-grabsch2/prog.c) ([README.md](2019/diels-grabsch2/README.md])) [Cody](#cody) made the author's statement that the entry compiles cleanly true by fixing `warning: a function declaration without a prototype is deprecated in all @@ -3951,7 +3918,7 @@ versions of C` (in main()). Not strictly necessary but if he's making fixes he might as well. -## [2019/dogon](/2019/dogon/prog.c) ([README.md](/2019/dogon/README.md)) +## [2019/dogon](2019/dogon/prog.c) ([README.md](2019/dogon/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this (Linux does not seem to but macOS does). @@ -3959,7 +3926,7 @@ might as well. He also fixed the Makefile so that it compiles with clang in Linux. -## [2019/endoh](/2019/endoh/prog.c) ([README.md](/2019/endoh/README.md])) +## [2019/endoh](2019/endoh/prog.c) ([README.md](2019/endoh/README.md])) As this is a backtrace quine having the optimiser enabled is not a good idea so [Cody](#cody) disabled it. For this same reason he also added the `-g` flag to the @@ -3967,12 +3934,12 @@ compilation as debugging symbols might just be useful for an entry that's supposed to segfault :-) -## [2019/poikola](/2019/poikola/prog.c) ([README.md[(/2019/poikola/README.md)) +## [2019/poikola](2019/poikola/prog.c) ([README.md[(2019/poikola/README.md)) [Cody](#cody) added a missing rule to the Makefile. -## [2019/karns](/2019/karns/prog.c) ([README.md](/2019/karns/README.md])) +## [2019/karns](2019/karns/prog.c) ([README.md](2019/karns/README.md])) [Cody](#cody) reported that with `-O` level > 0 this program segfaults (sometimes?). He's not sure why as it worked fine before on the same systems tested but `-O0` @@ -3980,22 +3947,22 @@ appears to fix the problem in both macOS and Linux. Perhaps this is the problem that the author reported where it sometimes segfaults but Cody did not try debugging it since it works with `-O0`. -He also added the script [try.sh](/2019/karns/try.sh) to showcase the entry a +He also added the script [try.sh](2019/karns/try.sh) to showcase the entry a bit more easily. # 2020 -## [2020/endoh2](/2020/endoh2/prog.c) ([README.md](/2020/endoh2/README.md)) +## [2020/endoh2](2020/endoh2/prog.c) ([README.md](2020/endoh2/README.md)) [Cody](#cody) copied the files from the spoiler.zip file that was password protected with a password that was no longer known from his preview of 2020. -## [2020/endoh3](/2020/endoh3/prog.c) ([README.md](/2020/endoh3/README.md)) +## [2020/endoh3](2020/endoh3/prog.c) ([README.md](2020/endoh3/README.md)) -[Cody](#cody) fixed the script [run_clock.sh](/2020/endoh3/run_clock.sh) which gave a +[Cody](#cody) fixed the script [run_clock.sh](2020/endoh3/run_clock.sh) which gave a funny error when running it: ```sh @@ -4017,7 +3984,7 @@ quick. Cody also reported (during the preview period of 2020) for some systems (at some point?) like macOS the use of `make clock` would not work due possibly to a -timing issue so [Yusuke](#yusuke) changed it to compile the [clock.c](/2020/endoh3/clock.c) +timing issue so [Yusuke](#yusuke) changed it to compile the [clock.c](2020/endoh3/clock.c) file directly (this might have been fixed in the Makefile later on but it doesn't hurt to keep it in and this way it isn't a problem in any system). How Cody remembers this minor detail more than three years ago is something that @@ -4026,26 +3993,26 @@ something of his even a millimetre from where it was he knows it so he might be called unusual (and he argues, with pride, eccentric :-) ) :-) -## [2020/ferguson2](/2020/ferguson1/prog.c) ([README.md](/2020/ferguson1/README.md)) +## [2020/ferguson2](2020/ferguson1/prog.c) ([README.md](2020/ferguson1/README.md)) [Cody](#cody), with intentional irony here :-), fixed formatting, links and typos in various files. -He improved the [termcaps.c test utility](/2020/ferguson1/termcaps.c), bug fixed -[play.sh](/2020/ferguson1/play.sh), fixed other scripts and the Makefile, changed +He improved the [termcaps.c test utility](2020/ferguson1/termcaps.c), bug fixed +[play.sh](2020/ferguson1/play.sh), fixed other scripts and the Makefile, changed some files to be markdown (and fixed problems that he caused in doing so :-) ), fixed typos and formatting and he also fixed some issues that occurred when files were renamed to `.md` from `.markdown`. Most importantly he also added some corrections to the vital [Double -layered chocolate fudge cake recipe](/2020/ferguson1/chocolate-cake.md) :-) +layered chocolate fudge cake recipe](2020/ferguson1/chocolate-cake.md) :-) Yes the irony here is as rich as the chocolate cake: the question is do you know how rich it is? If not and you like chocolate I (that is Cody :-) ) highly recommend you give it a go! :-) -## [2020/ferguson2](/2020/ferguson2/prog.c) ([README.md](/2020/ferguson2/README.md)) +## [2020/ferguson2](2020/ferguson2/prog.c) ([README.md](2020/ferguson2/README.md)) [Cody](#cody), with intentional irony here :-), fixed formatting, links and typos in various files. @@ -4054,11 +4021,11 @@ He also fixed some issues that occurred when files were renamed to `.md` from `.markdown`. Most importantly he also added some corrections to the vital [Double -layered chocolate fudge cake recipe](/2020/ferguson2/chocolate-cake.md), +layered chocolate fudge cake recipe](2020/ferguson2/chocolate-cake.md), enciphered though it is :-) -## [2020/kurdyukov2](/2020/kurdyukov2/prog.c) ([README.md](/2020/kurdyukov2/README.md)) +## [2020/kurdyukov2](2020/kurdyukov2/prog.c) ([README.md](2020/kurdyukov2/README.md)) [Cody](#cody) added `-L`/`-I` paths to the Makefile to let this compile more easily if the user has installed the appropriate library with @@ -4066,9 +4033,9 @@ the user has installed the appropriate library with `/opt/local`). -## [2020/tsoj](/2020/tsoj/prog.c) ([README.md](/2020/tsoj/README.md)) +## [2020/tsoj](2020/tsoj/prog.c) ([README.md](2020/tsoj/README.md)) -[Cody](#cody) added [alternate code](/2020/tsoj/README.md#alternate-code) that will feel +[Cody](#cody) added [alternate code](2020/tsoj/README.md#alternate-code) that will feel more at home for vi users. One might still end up cursing (see the README.md file) but probably a lot less :-) @@ -4110,7 +4077,7 @@ There were some other fixes as well including mass typo fixes in the Makefiles worth noting in this case). Other times it was enabling or disabling the optimiser to fix an entry, sometimes causing other problems that also had to be fixed, a good example being [1986/marshall](#1986marshall-readmemd) (see the -[compilers.md](/1986/marshall/compilers.md) for the amusing details and all that +[compilers.md](1986/marshall/compilers.md) for the amusing details and all that had to be done to fix it). There was a 'problem' where `${MAKE}` was `$(MAKE)`: this doesn't break anything @@ -4161,21 +4128,21 @@ We call out the extensive contributions of [Cody Boone Ferguson](https://www.ioccc.org/winners.html#Cody_Boone_Ferguson) who is responsible for most of the improvements and fixes including many **EXTREMELY HARD bug fixes** like -[1988/phillipps](/thanks-for-help.md#1988_phillipps), -[1992/vern](/thanks-for-help.md#1992_vern), -[2001/anonymous](/thanks-for-help.md#2001_anonymous), -[2004/burley](/thanks-for-help.md#2004_burley) and -[2005/giljade](/thanks-for-help.md#2005_giljade), making entries like -[1985/sicherman](/thanks-for-help.md#1985_sicherman) and -[1986/wall](/thanks-for-help.md#1986_wall) not need `-traditional-cpp` +[1988/phillipps](/thanks-for-fixes.md#1988phillipps-readmemd), +[1992/vern](/thanks-for-fixes.md#1992vern-readmemd), +[2001/anonymous](/thanks-for-fixes.md#2001anonymous-readmemd), +[2004/burley](/thanks-for-fixes.md#2004burley-readmemd) and +[2005/giljade](/thanks-for-fixes.md#2005giljade-readmemd), making entries like +[1985/sicherman](/thanks-for-fixes.md#1985sicherman-readmemd) and +[1986/wall](/thanks-for-fixes.md#1986wall-readmemd) not need `-traditional-cpp` (all **EXTREMELY HARD**), fixing entries to work with clang (some being **EXTREMELY HARD** like -[1991/dds](/thanks-for-help.md#1991_dds) or as much as possible (like -[1989/westley](/thanks-for-help.md#1989_westley), a true masterpiece +[1991/dds](/thanks-for-fixes.md#1991dds-readmemd)) or as much as possible (like +[1989/westley](/thanks-for-fixes.md#1989westley-readmemd), a true masterpiece that is **INCREDIBLY HARD, _MUCH, MUCH MORE SO_ than any other fix!**), porting entries to macOS (some being **EXTREMELY HARD** like -[1998/schweikh1](/thanks-for-help.md#1998_schweikh1), fixing code like -[2001/herrmann2](/thanks-for-help.md#2001_herrmann2) to work in both +[1998/schweikh1](/thanks-for-fixes.md#1998schweikh1-readmemd)), fixing code like +[2001/herrmann2](/thanks-for-fixes.md#2001herrmann2-readmemd) to work in both 32-bit/64-bit which *can be* **EXTREMELY HARD**, providing alternate code where useful/necessary, fixing possible/removing dead links, typo/consistency fixes, improving **ALL _Makefiles_** and writing @@ -4190,10 +4157,10 @@ IOCCC winners and fixing almost all past entries for modern systems! [Yusuke Endoh](https://www.ioccc.org/winners.html#Yusuke_Endoh) supplied a number of important bug fixes to a number of past IOCCC winners. Some of those fixes were **EXTREMELY TECHNICALLY CHALLENGING** such as -[1989/robison](/thanks-for-help.md#1989_robison), -[1990/cmills](/thanks-for-help.md#1990_cmills), -[1992/lush](/thanks-for-help.md#1992_lush) and -[2001/ctk](/thanks-for-help.md#2001_ctk). **THANK YOU VERY MUCH** for +[1989/robison](/thanks-for-fixes.md#1989robison-readmemd), +[1990/cmills](https://github.com/ioccc-src/temp-test-ioccc/blob/master/thanks-for-fixes.md#1990cmills-readmemd), +[1992/lush](/thanks-for-fixes.md#1992lush-readmemd) and +[2001/ctk](/thanks-for-fixes.md#2001ctk-readmemd). **THANK YOU VERY MUCH** for your help! From 1aaba20b1a3de93bd15efd089709463d03acce8b Mon Sep 17 00:00:00 2001 From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com> Date: Fri, 8 Dec 2023 09:27:20 -0800 Subject: [PATCH 2/6] Add 2015/dogon alt code + other improvements The author suggested that one should change the value of 'q' to '0x82000820000000' in order to see a bug that they carefully avoided. To make it easy to do this the alt version was added. The Makefile has been improved so it's easier to change the dimensions of the game: the author had put in the Makefile two macros that have the width and height and these now are set to WIDTH and HEIGHT defined in the Makefile so that one can just do something like: make WIDTH=500 HEIGHT=500 all rather than being forced to update the Makefile to do this. The README.md file has been format/typo checked. --- 2015/dogon/.gitignore | 1 + 2015/dogon/Makefile | 14 ++++-- 2015/dogon/README.md | 114 +++++++++++++++++++++++++++++++----------- 2015/dogon/prog.alt.c | 56 +++++++++++++++++++++ thanks-for-help.md | 10 ++++ 5 files changed, 162 insertions(+), 33 deletions(-) create mode 100644 2015/dogon/prog.alt.c diff --git a/2015/dogon/.gitignore b/2015/dogon/.gitignore index eb19e2f8d..f830336a5 100644 --- a/2015/dogon/.gitignore +++ b/2015/dogon/.gitignore @@ -5,4 +5,5 @@ indent indent.c indent.o prog +prog.alt prog.orig diff --git a/2015/dogon/Makefile b/2015/dogon/Makefile index 7bd802af6..3ab305dc7 100644 --- a/2015/dogon/Makefile +++ b/2015/dogon/Makefile @@ -57,9 +57,14 @@ CSTD= -std=gnu11 # ARCH= +# Variables to control dimensions of the game +# +WIDTH= 1024 +HEIGHT= 800 + # Defines that are needed to compile # -CDEFINE= -DW=1024 -Dp=800 +CDEFINE= -DW=${WIDTH} -Dp=${HEIGHT} # Include files that are needed to compile # @@ -116,8 +121,8 @@ OBJ= ${PROG}.o DATA= TARGET= ${PROG} # -ALT_OBJ= -ALT_TARGET= +ALT_OBJ= ${PROG}.alt.o +ALT_TARGET= ${PROG}.alt ################# @@ -140,6 +145,9 @@ ${PROG}: ${PROG}.c alt: data ${ALT_TARGET} @${TRUE} +${PROG}.alt: ${PROG}.alt.c + ${CC} ${CFLAGS} $< -o $@ ${LDFLAGS} + # data files # data: ${DATA} diff --git a/2015/dogon/README.md b/2015/dogon/README.md index 9ddba1356..91281a769 100644 --- a/2015/dogon/README.md +++ b/2015/dogon/README.md @@ -4,6 +4,21 @@ make ``` +To change the dimensions you can use the `WIDTH` and `HEIGHT` variables when +compiling (default 1024 x 800): + +```sh +make clobber WIDTH=640 HEIGHT=480 +``` + +to make the game 640 x 480. Obviously changing it to non numbers or negative +numbers or too large numbers will cause problems. + + +There is an alternate version that is based on the author's suggestion to change +a value in order to see a bug that they avoided in their entry. See [Alternate +code](#alternate-code) below. + ## To use: @@ -18,38 +33,70 @@ make ./prog ``` -Press and hold the Left Arrow key until you turn 90-degrees to the left +Press and hold the Left Arrow key until you turn 90-degrees to the left. -When you see a long tunnel, press the function key F2 +When you see a long tunnel, press the function key F2. -Use the Up, Down, Left and Right keys to change your path +Use the Up, Down, Left and Right keys to change your path. -Press function higher numbered function keys (F3, F4, ...) to go faster +Press function higher numbered function keys (F3, F4, ...) to go faster. -Press F1 to stop +Press F1 to stop. -Turn 90-degrees to one side +Turn 90-degrees to one side. -Press F4 to and drill into some blocks for a bit +Press F4 to drill into some blocks for a bit. -Press F1 to stop +Press F1 to stop. -Turn 180-degrees to face the way you came +Turn 180-degrees to face the way you came. -Press F2 and navigate back down the new hole until you reach the long tunnel again +Press F2 and navigate back down the new hole until you reach the long tunnel +again. -Press F1 to stop +Press F1 to stop. etc. -Press the ESC key +Press the ESC key. + + +## Alternate code: + +The author suggested that one change `q` to `0x82000820000000` instead of +`0x820008202625a0` to see a bug that they avoided, writing: + +``` +To see this bug in action change the assignment above +to q=0x82000820000000`, and look towards the negative +direction of the main tunnel. +``` + +This alt version does this for you. + + +### Alternate build: + +```sh +make alt +``` + + +### Alternate use: + +Use `prog.alt` as you would `prog` above. + + +### Alternate try: + +Try locating the issue the author suggested exists. ## Judges' remarks: You are in a twisty maze blocks, almost all alike. -Those blocks are generated by twisty maze of code blocks, almost all different. +Those blocks are generated by twisty maze of code blocks, almost all different. Can you find your way around either and understand where you are? @@ -61,12 +108,13 @@ number function keys such as F30 or F31? :-) ## Author's remarks: + ### What is it? -Just run prog with no arguments on an X11-compatible system. The scenery, though -pseudo-randomly generated should be strangely familiar, specially to those still -in their teen age. You can navigate using the keyboard arrow keys and the -function keys. Your speed is a linear function of (n-1) where Fn is the last +Just run `./prog` with no arguments on an X11-compatible system. The scenery, though +pseudo-randomly generated should be strangely familiar, especially to those still +in their teenage years. You can navigate using the keyboard arrow keys and the +function keys. Your speed is a linear function of `(n-1)` where `Fn` is the last function key you have pressed, and you always move in the direction you are looking at. Be aware that you are probably some kind of a Creeper as is obvious from looking at the program, hence your movement is destructive to the @@ -75,18 +123,21 @@ you might find yourself in a 3D maze of twisty little passages, from which there is only one Esc(ape) key. Note that in theory if you have a specialty keyboard with 32 function keys you may even press F31 to reach infinite improbability drive speed, though the author had never tested this feature. However a hidden -comment in keysymdef.h suggests the existence of a mythical Sun Keyboard with 35 +comment in `keysymdef.h` suggests the existence of a mythical Sun Keyboard with 35 function keys :) + ### Full disclosure: + This entry, though pretty thoroughly obfuscated, is not entirely original, nor am I Notch. The inspiration for this entry is a demo code written by the Notch -himself, which was released with the following license: "you may use the code +himself, which was released with the following license: "you may use the code in here for any purpose in any way you want, at your own risk". That version will henceforth be referred to as the original. Though the original in itself was quite nice and rather dense piece of code, it was not written in C, nor entirely and meticulously obfuscated, a state of things I hopefully rectified. + ### Some extra features: Basing it on the original which already had a wonderful simple and concise ray @@ -94,7 +145,7 @@ casting through a generated voxel world rendering, I added a few tweaks of my own device: * Two pass optimized rendering. The program first calculates 1/16 of the output -image by ray casting, and then, when possible uses texture interpolation on the +image by ray casting and then, when possible, uses texture interpolation on the voxel faces. It speeds up the rendering by at least a factor of 4 on most scenes, but extra care must be taken when passing rays through the leaves voxels ... @@ -104,17 +155,18 @@ In this version the rendering of those (far face leaves) is correct. * Window rendering size specified in Makefile. * Added the keyboard controls for navigation (and destruction). + ### Portability issues: This entry is rather portable I think on modern platforms. It assumes of course basic X-windows availability. There are several other salient assumptions though: -* The entry assumes `sizeof(int)=4`. This seems to cover pretty much everything +* The entry assumes `sizeof(int)==4`. This seems to cover pretty much everything that supports X-windows so would be broken only on quite ancient machines, embedded processors, or some big iron 64 bit system where `sizeof(int)=8`. * The entry assumes the default visual has 24 bit depth (RGB). This seems to be -the case on most X Servers this days. +the case on most X Servers these days. * The entry, does a thing which is an absolute No-No for X-windows program, i.e. assuming it knows some numeric values for keysyms defined in `keysymdef.h`. I have searched far and wide the lord Google's domain, yet was unable to find a @@ -130,17 +182,18 @@ the following: ### Precision issues: The entry, on purpose, (see the section about SIMD below) does not use enough -bits of precision, so some times the ray will miss the intersection of two voxel +bits of precision, so sometimes the ray will miss the intersection of two voxel faces and push on through. That's why you may notice some noise along close up voxel edges. Fixing this issue would have taken the entry over the size limit regrettably. + ### Obfuscations: Well, of course you have all the usual suspects, used for extreme compression, and such a nice layout: not very informative identifiers, which are being reused all over the place, some rather gruesome looking expressions, a whole load of -magic constants with apparently no rhyme nor reason (including a Lagrange +magic constants with apparently no rhyme or reason (including a Lagrange polynomial), and a message from our friendly Cetaceans. However it also includes some clever and not so obvious though instructive techniques, to subtly make the code more magical and efficient, at the same time. @@ -151,10 +204,11 @@ inline functions! The irony though, is that when compiling the program on modern X86 architectures indeed SSE/AVX is used for the long longs. Following is some "Spoiler" information, So if you want to play tough, stop reading at this point. + ### Portable SIMD programming: -So how is this done? Quite simply by using the whole long long arithmetic's -capability. I think the C99 standard assures us that long long has at least 64 +So how is this done? Quite simply by using the whole `long long` arithmetic's +capability. I think the C99 standard assures us that `long long` has at least 64 bits. Most of those bits are unused in normal programs, however here we use them more wisely. For example, in the inner loop of the program you have the innocent looking expression `i+=d`. What it does in fact, is a SIMD addition of two @@ -162,7 +216,7 @@ vectors, each with three signed fixed point coordinates, advancing our ray in 3D space! To spell it out, the macro producing such vectors is `P`, and the assignment -q=0x820008202625a0 sets our creeper original position to about `(32.5, 32.5019, +`q=0x820008202625a0` sets our creeper original position to about `(32.5, 32.5019, 2441.406)`. Evidently when doing such arithmetics, care must me taken to avoid overflow from @@ -171,8 +225,8 @@ each dimension this hardly matters. A subtle issue, is how to deal with signed quantities. In the `i+=d` expression above `i` has 3 positive components, but `d` has arbitrary signed components, as our ray may face in any direction. It seems things should not work, specially as we defined both `i` and `d` as -unsigned! However notice that the `T` (and `P`) macros convert `float` to -`signed long longs`. +`unsigned`! However notice that the `T` (and `P`) macros convert `float` to +`signed long long`s. Once sign is extended from a least component into higher bits, it seems at first to be recipe for disaster, however everything works beautifully, and you get @@ -184,7 +238,7 @@ tunnel. Similar technique is used on the RGB components so their brightness can be adjusted simultaneously by the expression: `o=o*b>>8`. Of course some spare bits -are needed between the components, so they are spread in the long long and +are needed between the components, so they are spread in the `long long` and reordered as RBG. diff --git a/2015/dogon/prog.alt.c b/2015/dogon/prog.alt.c new file mode 100644 index 000000000..4b4edadcf --- /dev/null +++ b/2015/dogon/prog.alt.c @@ -0,0 +1,56 @@ +#define So long +#define R rand() +#include +#include +#define T(i,F) ((So long)(i)<>10&63|q>>24&4032|q>>38&258048 +char J[1<<18]; int G[W*p],_,k,I=W/4+1,w=p/4+1; float C,B,e; + +unsigned So long A,n,d, t,h,x, f,o,r,a,l,L,F,i,s,H=1<<18,b=250,D[1<<14],z[W*p],q +=0x82000820000000;main(){Display *j=XOpenDisplay(0);Window u=XCreateSimpleWindow +(j,RootWindow(j,0),0,0,W,p,1,0,0);XImage *Y=XCreateImage(j,DefaultVisual(j,0),24 +,2,0,(char*)G,W,p,32,0); XEvent M; for(XMapWindow(j,u); XSelectInput( j,u,1)&&a- +65307; ){ if(!H){ if(XCheckWindowEvent(j,u,1,&M)){ a=XLookupKeysym(&M.xkey,0);*( +a&1?&C:& B)-=(.05 +-a/2% 2* .1)*!(a- +1& 4092^ 3920);a+ +2&0xfe0^ 0xfc0||( +s=a+2&31 ); }else +{ y(k,p+ ){ F=k%w* 4|k/w; float a[6],S=(F-p /2.) /p; +y(_,W+){ i=_%I*4|_/I; if( F>38)) { float V=(i-W/2. )/p,U=O( +S,1,B),m =32768,Q=m; a[4] =O(-1,S,B); a[3]= O(U,V,C) +; a[5]=O (-V,U,C); P((a+3 ),s*42); t||(A=d) ;f=0;y(n +,){float N=a[n+3], E=1024 /fabs(N); b= N<0; float K= +(((q>>20 *n)^~-b)+!b&1023 )/1024.; y(d,)a[d ]=a[d+3] +*E; a[n] =round(a[n]); P( a,K); i=q+d; P(a, 1); e=E* +K; for(; e>40)&1023|i>>8&4190208 |4194304 +:i&1023| i>>28&4190208|(b^l==r)<<23; if(h =D[(x>>6 +&0xf|x>> 14&0x3f0)+t*768]){ o=h; f=n|l*4| x<<32; m +=e; } if (t==8&e>8; G[L]=o>> 32<<8|o& +16711935 ; z[L]=3*(Q<=m)|f|b<<56; } else{ d=l*(f<< +8>>40)+( 4-l)*(h<<8>>40)>>2&16774143; o=D [(d>> 6& +15|d>>14 &1008)+J[(int)h/4]*768]*(b=h>>56 )>>8; G[ +L]=o>>32 <<8 | o& 16711935 ; z[L]=( +int) h|d <<32|b<< 56; } }} } q +=A; +XPutImage (j, u+0, DefaultGC (j,J[X(q +)]=0),Y, 0,0,0,0, W,p); }} else{ L= +--H/768; J[H] =R% 16*(R%4< abs((H>> +6&63)-32 )+abs((H +>>12&63) -32)-3); +i=H &15; F=H %768 +>>4; if( L<16){if +(L-1|!(R %3))b=R% +96^255; l=i*i*3+i*81/4&3; a=L>3?L-8?L-5?9858122:12365733-488848*((i+F/4*4)%8&&F% +4):R%2*5298487:3352537*L*L-14202379*L+19205553; if(L==4)if(FF-19)b*=0.7; if(L==3){ if((i-1&15)<14&(F-1&15)<14&!(F&16)){ a=12359778; _=7 +-i; k=7-F%16; _^=_>>31; k^=k>>31; b=196-R%32+(k>_?k:_)%3*42;} else{ b*=1+R%2*(.5 +-(i&1)); } } D[H]=(a&16711935|(a&65280)<<24)*(b>>(F>>5))>>8&0xff00ff00ff; } } }} diff --git a/thanks-for-help.md b/thanks-for-help.md index fb3c76ed9..5941015ad 100644 --- a/thanks-for-help.md +++ b/thanks-for-help.md @@ -3792,6 +3792,16 @@ output. # 2015 +## [2015/dogon](2015/dogon/prog.c) ([README.md](2015/dogon/README.md])) + +[Cody](#cody) improved the Makefile so that one can easily change the dimensions +at compilation time via `make(1)`. + +Cody also added alt code that is based on the author's remarks, suggesting that +one change the value of `q` to a different number, in order to see a bug that +they avoided. + + ## [2015/duble](2015/duble/prog.c) ([README.md](2015/duble/README.md])) [Cody](#cody) added the [try.sh](2015/duble/try.sh) script. From 29903d763b534b9a620296df4c1487ff44bb61f7 Mon Sep 17 00:00:00 2001 From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com> Date: Fri, 8 Dec 2023 10:01:40 -0800 Subject: [PATCH 3/6] Add 2015/endoh2/try.sh + format/typo checks --- 2015/endoh2/README.md | 10 ++++------ 2015/endoh2/try.sh | 36 ++++++++++++++++++++++++++++++++++++ thanks-for-help.md | 5 +++++ 3 files changed, 45 insertions(+), 6 deletions(-) create mode 100755 2015/endoh2/try.sh diff --git a/2015/endoh2/README.md b/2015/endoh2/README.md index 98687b7b0..52982c88b 100644 --- a/2015/endoh2/README.md +++ b/2015/endoh2/README.md @@ -15,9 +15,7 @@ make ### Try: ```sh -cat prog.c - -./prog | diff - prog.c +./try.sh ``` @@ -42,14 +40,14 @@ more prog.c Where did those underscores come from? Well [RTFS](http://acronyms.thefreedictionary.com/RTFS)!\*\* ** Read the Freaking Source (polite form) -** Read The Freakin' Screen (polite form) +** Read The Freaking Screen (polite form) -If you are still puzzled, look at prog.c with your favorite text editor. +If you are still puzzled, look at [prog.c](prog.c) with your favorite text editor. ## Author's remarks: -**Follow this instruction literally!** +**Follow these instructions literally!** ```sh cat prog.c diff --git a/2015/endoh2/try.sh b/2015/endoh2/try.sh new file mode 100755 index 000000000..243663356 --- /dev/null +++ b/2015/endoh2/try.sh @@ -0,0 +1,36 @@ +#!/usr/bin/env bash +# +# try.sh - demonstrate IOCCC winner 2015/endoh2 +# + +# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it +# this way allows us to have the user specify a different compiler in an easy +# way. +if [[ -z "$CC" ]]; then + CC="cc" +fi + +make CC="$CC" all >/dev/null || exit 1 + +# clear screen after compilation so that only the entry is shown +clear + +echo "$ cat prog.c" 1>&2 +cat prog.c +echo 1>&2 + +echo "$ ./prog | diff -s - prog.c" +./prog | diff -s - prog.c +echo 1>&2 + +echo "$ less -EXF prog.c" 1>&2 +read -r -n 1 -p "Press any key to continue: " +less -EXF prog.c +echo 1>&2 + +echo "$ wc -c prog.c" 1>&2 +wc -c prog.c +echo 1>&2 +echo "Can you figure out the inconsistencies?" 1>&2 +echo "If you can't or you're still confused try" 1>&2 +echo "opening prog.c in an editor like vim." 1>&2 diff --git a/thanks-for-help.md b/thanks-for-help.md index 5941015ad..1133900d0 100644 --- a/thanks-for-help.md +++ b/thanks-for-help.md @@ -3807,6 +3807,11 @@ they avoided. [Cody](#cody) added the [try.sh](2015/duble/try.sh) script. +## [2015/endoh2](2015/endoh2/prog.c) ([README.md](2015/endoh2/README.md])) + +[Cody](#cody) added the [try.sh](2015/endoh2/try.sh) script. + + ## [2015/endoh3](2015/endoh3/prog.c) ([README.md](2015/endoh3/README.md])) [Cody](#cody) fixed this to compile with Linux which was having a problem with duplicate From d9b281039291862b0168e1255644edee6d8e13da Mon Sep 17 00:00:00 2001 From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com> Date: Fri, 8 Dec 2023 10:20:44 -0800 Subject: [PATCH 4/6] Add 2015/endoh3/try.sh + format/typo checks A new make rule (or alias for mullender and back_to) called 'future' was added for the theme. The try.sh script uses make future ('back_to' just doesn't look that good in my eyes even when I added it). The try.sh tries to stay in character with the award theme a bit too though that will only be noticeable if you pay attention. I found the films very boring (though maybe years later I would find it more enjoyable) so I'm sure that something more fun could have been added if I knew them more but I do not. Well I tried anyway. --- 2015/endoh3/Makefile | 2 +- 2015/endoh3/README.md | 16 +++++++++------- 2015/endoh3/try.sh | 36 ++++++++++++++++++++++++++++++++++++ thanks-for-help.md | 6 ++++-- 4 files changed, 50 insertions(+), 10 deletions(-) create mode 100755 2015/endoh3/try.sh diff --git a/2015/endoh3/Makefile b/2015/endoh3/Makefile index 26609e3a6..bd1b8a519 100644 --- a/2015/endoh3/Makefile +++ b/2015/endoh3/Makefile @@ -135,7 +135,7 @@ all: data ${TARGET} ${PROG}: ${PROG}.c ${CC} ${CFLAGS} $< -o $@ ${LDFLAGS} -mullender back_to: ${PROG}.c mullender.c +future mullender back_to: ${PROG}.c mullender.c ${CC} ${CFLAGS} $< -o ${PROG} ${LDFLAGS} ${BACK_TO} diff --git a/2015/endoh3/README.md b/2015/endoh3/README.md index a837ebb61..fad826025 100644 --- a/2015/endoh3/README.md +++ b/2015/endoh3/README.md @@ -17,14 +17,12 @@ make To see the original [mullender](mullender.c) in action: ```sh -cc -o prog prog.c mullender.c # or make mullender or make back_to -./prog -q -^C # where ^C is ctrl-C, interrupt. +./try.sh ``` -Observe what happens when you hit enter or another character! Send INTR to end -the program. +Observe what happens when you hit enter or another character! You might even try +typing out, one character at a time, `1984/mullender`, and then see what it looks +like at the end. Send INTR to end the program. More generally use: @@ -34,7 +32,7 @@ cc -o prog prog.c foo.c ^C # if necessary, where ^C is ctrl-C, interrrupt ``` -to run `prog` as whatever foo.c is in the joke PDP-11 emulator. +to compile and run `prog` as whatever foo.c is in the joke PDP-11 emulator. ## Judges' remarks: @@ -55,6 +53,7 @@ clue, see the end of the author's remarks.) If in doubt, use ## Author's remarks: + ### Hint / Compatibility * A little-endian system is required due to an external factor. @@ -65,6 +64,7 @@ the same reason. But I believe it is reasonably portable. the source code from all angles.. * Find `main()` function. + ### Spoiler This program is a joke PDP-11 emulator. ("ll-dpd" is embedded in the code. @@ -80,6 +80,7 @@ clang -o prog prog.c mullender.c You can enjoy the legendary winner of the first IOCCC, again. + ### Internal This program uses `__attribute__((constructor))`, which is a GCC extension, to @@ -104,6 +105,7 @@ needed for [mullender.c](mullender.c) to work: * 4: Auto-decrement deferred * 6: Index (incomplete) + ### Limitations Non-trivial combination of instruction and addressing mode may cause undefined diff --git a/2015/endoh3/try.sh b/2015/endoh3/try.sh new file mode 100755 index 000000000..43dceebe0 --- /dev/null +++ b/2015/endoh3/try.sh @@ -0,0 +1,36 @@ +#!/usr/bin/env bash +# +# try.sh - demonstrate IOCCC winner 2015/endoh3 +# + +# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it +# this way allows us to have the user specify a different compiler in an easy +# way. +if [[ -z "$CC" ]]; then + CC="cc" +fi + +# clear screen so that only the entry is shown +clear + +read -r -n 1 -p "Press any key to run: less -EXF prog.c (space = next page, q = quit): " +echo 1>&2 +less -EXF prog.c +echo 1>&2 + +echo "$ make future" 1>&2 +make future || exit 1 + +echo 1>&2 +echo 1>&2 + +echo "Will go back to the future and run 1984/mullender through prog. To quit" 1>&2 +echo "the program hit ctrl-c/intr." 1>&2 +echo 1>&2 +echo "You might want to try hitting enter or another key when the output reaches" 1>&2 +echo "the end of the line." 1>&2 +echo 1>&2 +read -r -n 1 -p "Press any key to continue: " +echo 1>&2 +echo "$ ./prog" 1>&2 +./prog diff --git a/thanks-for-help.md b/thanks-for-help.md index 1133900d0..4b84dca2a 100644 --- a/thanks-for-help.md +++ b/thanks-for-help.md @@ -3818,9 +3818,11 @@ they avoided. symbols of `main()`. The fix is through the compiler option `-fcommon` which will let it compile like it does with macOS. -Cody also made it easier to enjoy the theme of [Back to the +Cody also added the [try.sh](2015/endoh3/try.sh) script which makes use of the +make rule he added (to enjoy the theme of the entry, [Back to the Future](https://en.wikipedia.org/wiki/Back_to_the_Future) using this entry by -simply typing `make back_to` or `make mullender`. +simply typing `make back_to` or `make mullender`) and then runs the famous +[1984/mullender.c](/1984/mullender/mullender.c). ## [2015/hou](2015/hou/prog.c) ([README.md](2015/hou/README.md)) From 549633020ff8fa2babacc435efde1a8db4a2a89e Mon Sep 17 00:00:00 2001 From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com> Date: Fri, 8 Dec 2023 10:38:42 -0800 Subject: [PATCH 5/6] Add 2015/endoh4/try.sh + format/typo checks --- 2015/endoh4/README.md | 26 ++++++++++--------- 2015/endoh4/try.sh | 58 +++++++++++++++++++++++++++++++++++++++++++ thanks-for-help.md | 5 ++++ 3 files changed, 77 insertions(+), 12 deletions(-) create mode 100755 2015/endoh4/try.sh diff --git a/2015/endoh4/README.md b/2015/endoh4/README.md index f40d85466..00941d19a 100644 --- a/2015/endoh4/README.md +++ b/2015/endoh4/README.md @@ -5,6 +5,10 @@ make ``` +There is an alt version which is the originally submitted entry. See [Alternate +code](#alternate-code) below for details. + + ## To use: ```sh @@ -15,29 +19,27 @@ make ### Try: ```sh -./prog @ @ @ @ @ @ - -./prog @ @ @ @ @ @ @ @ @ @ @ @ - -./prog $(perl -e 'print "@ " x (2*3*5*7);') - -./prog $(< Makefile) +./try.sh ``` ## Alternate code: -An alternate version of this entry, `prog.alt.c`, is provided.\ +An alternate version of this entry, [prog.alt.c](prog.alt.c), is provided. This alternate code does not contain improvements suggested by [Gil -Dogon](/winners.html#Gil_Dogon); it is -the author's original entry. +Dogon](/winners.html#Gil_Dogon); it is the author's original entry. + + +### Alternate build: -To compile this alternate version: ```sh make alt ``` + +### Alternate use: + Use `prog.alt` as you would `prog` above. @@ -67,7 +69,7 @@ gcc -o prog prog.c Inspired by [Animated Factorization Diagrams](http://www.datapointed.net/visualizations/math/factorization/animated-diagrams/). -`prog.alt.c` is the original version that I submitted. [Gil +[prog.alt.c](prog.alt.c) is the original version that I submitted. [Gil Dogon](/winners.html#Gil_Dogon) kindly improved it during the review. Thank you! diff --git a/2015/endoh4/try.sh b/2015/endoh4/try.sh new file mode 100755 index 000000000..c06358f07 --- /dev/null +++ b/2015/endoh4/try.sh @@ -0,0 +1,58 @@ +#!/usr/bin/env bash +# +# try.sh - demonstrate IOCCC winner 2015/endoh4 +# + +# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it +# this way allows us to have the user specify a different compiler in an easy +# way. +if [[ -z "$CC" ]]; then + CC="cc" +fi + +make CC="$CC" all >/dev/null || exit 1 + +# clear screen after compilation so that only the entry is shown +clear + +PERL="$(type -P perl)" + +echo "$ ./prog @" 1>&2 +./prog @ + +echo "$ ./prog @ @" 1>&2 +./prog @ @ + +echo "$ ./prog @ @ @" 1>&2 +./prog @ @ @ + +echo "$ ./prog @ @ @ @ @" 1>&2 +./prog @ @ @ @ @ + +echo "$ ./prog @ @ @ @ @ @" 1>&2 +./prog @ @ @ @ @ @ + +echo "$ ./prog @ @ @ @ @ @ @" 1>&2 +./prog @ @ @ @ @ @ @ + +echo "$ ./prog @ @ @ @ @ @ @ @" 1>&2 +./prog @ @ @ @ @ @ @ @ + +echo "$ ./prog @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @" 1>&2 +./prog @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ + +echo "$ ./prog @ @ @ @ @ @ @ @ @ @ @ @" 1>&2 +./prog @ @ @ @ @ @ @ @ @ @ @ @ + +echo "$ ./prog \"\$(< Makefile)\"" 1>&2 +read -r -n 1 -p "Press any key to continue: " +echo 1>&2 +./prog "$(< Makefile)" + +if [[ -n "$PERL" ]]; then + echo "$ ./prog \$($PERL -e 'print "@ " x (2*3*5*7);')" 1>&2 + read -r -n 1 -p "Press any key to continue: " + echo 1>&2 + ./prog "$($PERL -e 'print "@ " x (2*3*5*7);')" +fi + diff --git a/thanks-for-help.md b/thanks-for-help.md index 4b84dca2a..021f8176c 100644 --- a/thanks-for-help.md +++ b/thanks-for-help.md @@ -3825,6 +3825,11 @@ simply typing `make back_to` or `make mullender`) and then runs the famous [1984/mullender.c](/1984/mullender/mullender.c). +## [2015/endoh4](2015/endoh4/prog.c) ([README.md](2015/endoh4/README.md])) + +[Cody](#cody) added the [try.sh](2015/endoh4/try.sh) script. + + ## [2015/hou](2015/hou/prog.c) ([README.md](2015/hou/README.md)) [Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this From c0b8d32b5970b3c939d957e1a57642e29097e7c8 Mon Sep 17 00:00:00 2001 From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com> Date: Fri, 8 Dec 2023 10:53:15 -0800 Subject: [PATCH 6/6] Add 2015/hou/try.sh + format/typo checks The file large is from dd(1) of /dev/zero to be large enough to cause the program to run out of memory (but not too large for the repo, see 'wc -c' on it) as suggested by the judges' remarks. --- 2015/hou/README.md | 28 ++++++++++++++++++++++------ 2015/hou/large | Bin 0 -> 524288 bytes 2015/hou/try.sh | 45 +++++++++++++++++++++++++++++++++++++++++++++ thanks-for-help.md | 3 +++ 4 files changed, 70 insertions(+), 6 deletions(-) create mode 100644 2015/hou/large create mode 100755 2015/hou/try.sh diff --git a/2015/hou/README.md b/2015/hou/README.md index 7b6146b2f..c712151af 100644 --- a/2015/hou/README.md +++ b/2015/hou/README.md @@ -5,10 +5,24 @@ make ``` +### Bugs and (Mis)features: + +The current status of this entry is: + +``` +STATUS: INABIAF - please **DO NOT** fix +``` + +For more detailed information see [2015 hou in bugs.md](/bugs.md#2015-hou). + + + + ## To use: ```sh -echo IOCCC | ./prog +echo something | ./prog +./prog < file ``` @@ -37,7 +51,7 @@ Some things that make you go, "huh?" How are those values magically returned? -What happens with a large file? Something over 256K +What happens with a large file? Something over 256K. ```sh ./prog < large_file @@ -50,7 +64,7 @@ Where does that message come from? This looks like a normal C program. -Almost everything is a double. +Almost everything is a `double`. There are tell-tale signs like `pow(2,(?/12))` and `exp(-?*?)` (names redacted). You can also find a bunch of cosines and polynomial evaluations. @@ -59,6 +73,7 @@ It looks like a ????? ???????????, right? Run and find out. + ### Why obfuscated Some poor scripting folks only have access to doubles (Jav?script, L?a, BA?IC, @@ -72,10 +87,11 @@ isn't a single integer. Even `getchar()` and `EOF` are immediately converted. Since `bool` counts as an integer type too, there is no boolean either. No comparison, no `if`, no `?:`, no `||` `&&`. Everything is done in a single loop -that terminates on printf. Straight up arithmetic. +that terminates on `printf(3)`. Straight up arithmetic. + +`floor(3)` and `ceil(3)` are technically double-to-double functions, but they feel +like cheating. Yes `cos(3)`, no `floor(3)`. -`floor` and `ceil` are technically double-to-double functions, but they feel -like cheating. 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Doing it +# this way allows us to have the user specify a different compiler in an easy +# way. +if [[ -z "$CC" ]]; then + CC="cc" +fi + +make CC="$CC" all >/dev/null || exit 1 + +# clear screen after compilation so that only the entry is shown +clear + + +echo "$ echo IOCCC | ./prog" 1>&2 +echo IOCCC | ./prog +echo 1>&2 + +echo "$ ./prog < rfc1321.txt" 1>&2 +./prog < rfc1321.txt +echo 1>&2 + +echo "$ echo \"\" | ./prog" 1>&2 +echo "" | ./prog +echo 1>&2 + +echo "For the next two, observe the magical values: " +read -r -n 1 -p "Press any key to continue: " +echo 1>&2 +echo "$ ./prog < prog.c | cut -c-5" 1>&2 +./prog < prog.c | cut -c-5 + +echo "$ ./prog < Makefile | cut -c-4" 1>&2 +./prog < Makefile | cut -c-4 +echo 1>&2 + +echo "$ wc -c large" 1>&2 +wc -c large + +echo "$ ./prog < large" 1>&2 +./prog < large diff --git a/thanks-for-help.md b/thanks-for-help.md index 021f8176c..335ce31cd 100644 --- a/thanks-for-help.md +++ b/thanks-for-help.md @@ -3835,6 +3835,9 @@ simply typing `make back_to` or `make mullender`) and then runs the famous [Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this (Linux doesn't seem to but macOS does). +Cody also added the [try.sh](2015/hou/try.sh) script and the large file `large` +which the `try.sh` script uses. + Cody also added the RFC 1321 text file, [rfc1321.txt](2015/hou/rfc1321.txt) to the directory, to make it so one need not download it, and which the README.md file now links to.