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.
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@@ -5,10 +5,24 @@ make
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```
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### Bugs and (Mis)features:
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The current status of this entry is:
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```
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STATUS: INABIAF - please **DO NOT** fix
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```
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For more detailed information see [2015 hou in bugs.md](/bugs.md#2015-hou).
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## To use:
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```sh
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echo IOCCC | ./prog
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echo something | ./prog
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./prog < file
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```
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@@ -37,7 +51,7 @@ Some things that make you go, "huh?"
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How are those values magically returned?
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What happens with a large file? Something over 256K
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What happens with a large file? Something over 256K.
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```sh
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./prog < large_file
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@@ -50,7 +64,7 @@ Where does that message come from?
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This looks like a normal C program.
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Almost everything is a double.
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Almost everything is a `double`.
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There are tell-tale signs like `pow(2,(?/12))` and `exp(-?*?)` (names redacted).
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You can also find a bunch of cosines and polynomial evaluations.
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@@ -59,6 +73,7 @@ It looks like a ????? ???????????, right?
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Run and find out.
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### Why obfuscated
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Some poor scripting folks only have access to doubles (Jav?script, L?a, BA?IC,
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@@ -72,10 +87,11 @@ isn't a single integer. Even `getchar()` and `EOF` are immediately converted.
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Since `bool` counts as an integer type too, there is no boolean either. No
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comparison, no `if`, no `?:`, no `||` `&&`. Everything is done in a single loop
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that terminates on printf. Straight up arithmetic.
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that terminates on `printf(3)`. Straight up arithmetic.
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`floor(3)` and `ceil(3)` are technically double-to-double functions, but they feel
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like cheating. Yes `cos(3)`, no `floor(3)`.
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`floor` and `ceil` are technically double-to-double functions, but they feel
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like cheating. Yes `cos`, no `floor`.
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### Limitations
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Binary file not shown.
Executable
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@@ -0,0 +1,45 @@
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#!/usr/bin/env bash
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#
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# try.sh - demonstrate IOCCC winner 2015/hou
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#
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# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
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# this way allows us to have the user specify a different compiler in an easy
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# way.
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if [[ -z "$CC" ]]; then
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CC="cc"
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fi
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make CC="$CC" all >/dev/null || exit 1
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# clear screen after compilation so that only the entry is shown
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clear
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echo "$ echo IOCCC | ./prog" 1>&2
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echo IOCCC | ./prog
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echo 1>&2
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echo "$ ./prog < rfc1321.txt" 1>&2
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./prog < rfc1321.txt
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echo 1>&2
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echo "$ echo \"\" | ./prog" 1>&2
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echo "" | ./prog
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echo 1>&2
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echo "For the next two, observe the magical values: "
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read -r -n 1 -p "Press any key to continue: "
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echo 1>&2
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echo "$ ./prog < prog.c | cut -c-5" 1>&2
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./prog < prog.c | cut -c-5
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echo "$ ./prog < Makefile | cut -c-4" 1>&2
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./prog < Makefile | cut -c-4
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echo 1>&2
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echo "$ wc -c large" 1>&2
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wc -c large
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echo "$ ./prog < large" 1>&2
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./prog < large
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@@ -3835,6 +3835,9 @@ simply typing `make back_to` or `make mullender`) and then runs the famous
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[Cody](#cody) added explicit linking of libm (`-lm`) for systems that do not do this
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(Linux doesn't seem to but macOS does).
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Cody also added the [try.sh](2015/hou/try.sh) script and the large file `large`
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which the `try.sh` script uses.
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Cody also added the RFC 1321 text file, [rfc1321.txt](2015/hou/rfc1321.txt) to
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the directory, to make it so one need not download it, and which the README.md
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file now links to.
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