move fix thanks a file, update top level html links, rename CONTRIBUTING.md
The fix thank you's have been moved from `README.md` to `thanks-for-fixes.md`. **WARNING**: Some mistakes may have been made in doing this. We presume later changes by others will correct any issues. The `CONTRIBUTING.md` was renamed `how-to-enter.md`. A 3rd line of links was added to top level html such as `contact.html`, `index.html`, `judges.html`, `winners.html`, and `years.html`. Improved blank line use in a number (but not all) `README.md` files.
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@@ -6,13 +6,13 @@ SDRC
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Milford, OH 45150
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US
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## To build:
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```sh
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make all
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```
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Modern compilers failed to compile this entry:
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```c
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@@ -26,9 +26,6 @@ but we were able to get it to compile with modern compilers by specifying the
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`-ansi` flag with a tip from [Yusuke Endoh](/winners.html#Yusuke_Endoh). Thank
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you Yusuke!
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[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) pointed out that the
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compiler option `-trigraphs` would also have worked.
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## To run:
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@@ -36,6 +33,7 @@ compiler option `-trigraphs` would also have worked.
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./scjones
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```
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## Judges' remarks:
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The addition of trigraphs has made it easier to make programs hard to read. It
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@@ -69,6 +67,7 @@ standpoint) character sets. In short, it should be very widely portable. As an
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extra added attraction, all of the lines are under 72 characters long, which
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would allow for sequence numbers to be punched in columns 73-80 :-).
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## Copyright and CC BY-SA 4.0 License:
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This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved.
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+5
-9
@@ -19,17 +19,10 @@ US
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make all
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```
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[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed this to work with
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modern compilers; `exit(3)` returns void but the function was used in a binary
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expression so this wouldn't even compile. Cody also changed the code to use
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`fgets()` instead of `gets()` so one would not get a warning about the use of
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`gets()` at linking time or execution, the latter case causing confusing output
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due to the warning being interspersed with the program's output. Thank you Cody
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for your assistance!
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For the original version with `gets()` see the [archive
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tarball](/archive/archive-1990.tar.bz2).
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## To run:
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```sh
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@@ -42,6 +35,7 @@ NOTE: globs do not work with this entry. Why?
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NOTE: `exit` does not work and neither does `logout`. To exit try sending ctrl-d
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or ctrl-c (or kill it from another terminal :-) ).
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## Try:
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```sh
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@@ -57,8 +51,8 @@ vi tbr.c
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What happens if you try using `cd -` to return to previous directory? What about
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`cd` with no args?
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## Judges' remarks:
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## Judges' remarks:
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This program touches on a well known Unix utility, the 6th edition Bourne Shell
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(`/bin/sh`), whose original source was considered to be extremely obfuscated by
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@@ -86,6 +80,7 @@ e(x){x<0?write(2,"?\n$ "-x/4,2),x+1||(exit(1),0):5;}
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It has the `exit()` returns void fix but not the `gets()` to `fgets()` fix
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applied.
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## Author's remarks:
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### Rot13:
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@@ -144,6 +139,7 @@ applied.
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Gurer vf whfg bar reebe zrffntr, gur dhrfgvba znex, ohg url, gung'f
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nyy rq qbrf gbb.
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## Copyright and CC BY-SA 4.0 License:
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This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved.
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+3
-18
@@ -13,24 +13,6 @@ US
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make all
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```
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[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed some bugs that
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impacted the usability of this program including some segfaults under modern
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systems (and possibly in some cases earlier systems) with this entry.
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Originally we noted that the 4 trailing args '0 0 0 0' were required on systems
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that dump core when NULL is dereferenced but this problem showed itself in
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modern systems even with the 4 '0 0 0 0'. He also fixed a segfault if not enough
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args are specified and fixed the code so that the generated `fibonacci.c`
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actually works; before it just printed `0` over and over again (since it did not
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work anyway a segfault prevention was added here). He also fixed some array
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addressing (some of which might not be strictly necessary but as he was testing
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the `fibonacci.c` bug he ended up changing it anyway). Finally he changed this
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program to use `fgets()` not `gets()` to make it safer and to prevent a warning
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about `gets()` at linking or runtime. Thank you Cody for your assistance!
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[Yusuke Endoh](/winners.html#Yusuke_Endoh) pointed out that `atof` nowadays
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needs `#include <stdlib.h>` which was used in order to get this to work
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initially (prior to this the output was incomplete). Thank you Yusuke!
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## To run:
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@@ -69,6 +51,7 @@ if (a[1]==NULL||a[2]==NULL||a[3]==NULL||a[4]==NULL||a[5]==NULL) return 1;
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be changed to just test the value of `A` when `a` is argv and `A` is argc?
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## Judges' remarks:
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The program's source implements four functions, all from the
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@@ -137,6 +120,7 @@ knife](https://en.wikipedia.org/wiki/Swiss_Army_knife) included! :-)
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When this program was first shown at the 1990 Summer Usenix conference, it
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received a standing ovation; a first for a contest entry.
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## Author's remarks:
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Differential equations are solved via the Runge-Kutta method, which guarantees
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@@ -148,6 +132,7 @@ Sorting is accomplished with a standard shell sort.
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Note that the sorting and reversing is limited to files with fewer than 500
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lines, each less than 99 characters long.
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## Copyright and CC BY-SA 4.0 License:
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This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved.
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@@ -7,23 +7,20 @@ St. Paul, MN 55104
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US
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<http://www.westley.org>
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## To build:
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```sh
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make all
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```
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## To run:
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```sh
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./westley number
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```
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[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed this for modern
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systems. It had `1s` in places for a short int which was changed to just `1`.
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Since it's instructional to see the differences he has provided an alternate
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version with the original code. See below. Thank you Cody for your assistance!
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NOTE: this program will enter an infinite loop if input is not a number > 0.
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### INABIAF - it's not a bug it's a feature :-)
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@@ -42,9 +39,7 @@ NOTE: this entry will very likely crash or do something else without an arg.
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### Alternate code:
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To see how C has changed over the years Cody provided the original source in
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[westley.alt.c](westley.alt.c). If you have an old enough compiler try:
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If you have an old enough compiler try and to see how C has changed over the years:
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```sh
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make alt
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@@ -91,6 +86,7 @@ on some systems. My personal favorite lint complaint is
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Also obviously, `(char)lotte` and `(char*)lie` are incompatible types...
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## Copyright and CC BY-SA 4.0 License:
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This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved.
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