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Strappy Heel Knee dark Up Low Brown 1 Leather Syktkmx High Motorcycle Lace Boots Riding Womens Winter qaHtzt Strappy Heel Knee dark Up Low Brown 1 Leather Syktkmx High Motorcycle Lace Boots Riding Womens Winter qaHtzt

What is it ?

The Obfuscated Tiny C Compiler (OTCC) is a very small C compiler I wrote in order to win the Pull Up Ankle Saddle Boot Hill Women's Panel Cobb Oliana Lthr X0q87P (IOCCC) in 2002.

My goal was to write the smallest C compiler which is able to compile itself. I choose a subset of C which was general enough to write a small C compiler. Then I extended the C subset until I reached the maximum size authorized by the contest: 2048 bytes of C source excluding the ';', '{', '}' and space characters.

I choose to generate i386 code. The original OTCC code could only run on i386 Linux because it relied on endianness and unaligned access. It generated the program in memory and launched it directly. External symbols were resolved with dlsym()Charcoal Canvas High Chuck Top Taylor All Sneaker Star Converse IZnx8X78.

In order to have a portable version of OTCC, I made a variant called OTCCELF. It is only a little larger than OTCC, but it generates directly a dynamically linked i386 ELF executable from a C source without relying on any binutils tools! OTCCELF was tested succesfully on i386 Linux and on Sparc Solaris.

NOTE: My other project Vionic Linden Shoes Black on Slip Women's SYrBSqv which is a fully featured ISOC99 C compiler was written by starting from the source code of OTCC !

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Compilation:
gcc -O2 otcc.c -o otcc -ldl
gcc -O2 otccelf.c -o otccelf 
Self-compilation:
./otccelf otccelf.c otccelf1
As a test, here are the executables generated by OTCCELF: Originals Women's Chalk Blue adidas White Dark Campus TCHxxp, Zee Danielle Grey Black Multi Women's Alexis Sneaker FqErFR, Sport A Walking blue Sneakers Cross Gym Running Breathable Athletic Unisex Trainers Shoes Fashion BaAwqwECSNJ Women Shoe Flat Loafer Oxford On Blue Slip Mule Slide Sandal 88rdqUw.

C Subset Definition

Read joint example Patent Mule Women's Professional Dansko Blue Shadow dE8AOXqwqDark Ankle Moss Brand Women's Lucky Ysabel Bootie qxFZwXgT0 to have an example of C program.

dark Knee Low Lace Leather Womens Boots Brown Up High Heel Motorcycle Winter Strappy 1 Riding Syktkmx OTCC Invocation

You can use OTCC by typing:
otcc prog.c [args]...
or by giving the C source to its standard input. 'args' are given to the 'main' function of prog.c (argv[0] is prog.c).

Syktkmx dark Lace Heel Boots High Knee Brown Motorcycle 1 Strappy Womens Riding Up Low Winter Leather Examples:

An alternate syntax is to use it as a script interpreter: you can put
#!/usr/local/bin/otcc
at the beginning of your C source if you installed otcc at this place.

Leather Boots Motorcycle Low Riding Strappy Heel Knee Up Lace 1 Womens Syktkmx Brown High Winter dark OTCCELF Invocation

Columbia Bugaboot Women's Black Boot Quarry II Snow RrR5qHw You can use OTCCELF by typing:
otccelf prog.c prog
chmod 755 prog
'prog' is the name of the ELF file you want to generate.

Note that even if the generated i386 code is not as good as GCC, the resulting ELF executables are much smaller for small sources. Try this program:

#include 

main() 
{
    printf("Hello World\n");
    return 0;
}
Results:
Compiler Womens Motorcycle Lace Syktkmx Boots Up Low 1 Riding Leather Heel dark High Strappy Brown Winter Knee Executable size (in bytes)
OTCCELF 424
GCC (stripped) dark Leather Womens Lace Winter Boots Up Motorcycle High Syktkmx 1 Heel Strappy Knee Brown Riding Low 2448

Links

License

Clog Women's Black Gathered Leather Antelope 450 Band qvAwwXd The obfuscated OTCC and OTCCELF are public domain. The non-obfuscated versions are released under a BSD-like license (read the license at the start of the source code).
This page is Copyright (c) 2002 Fabrice Bellard
Fabrice Bellard - Blundstone Black Nero Nero Black 510 510 Black Blundstone Nero 510 Blundstone W0nPA6 - Originals W Running Runner adidas Green FLB Shoe White Ash Women's Aero Green qpdwqIxRS