C

The C Programming Language

We compile each program with

Standard C11 (iso9899:2011) Language Programming

The repository purpose is to talk about C11 (Standard ISO)

Algorithms and Data Structures

Algorithms an

bitwise Hacks

From bitwise operators to the binary representation. A journey among the bits.

• bit operators;
• shifting;
• extract, clear and setup a bit;
• extract, clear and setup a bitfield;
• bit hacks.

interfaces

How to build robust interfaces.

Libraries and API's

A lot of libraries for every day use; graphics, cryptography, serialization, database, I/O and so on.

Full tutorial:

• cairo library (2D graphics)
• SDL, Simple DirectMedia Library (2D graphics)
• SQLite C API Library (RDMS)

Representing information

How computer really works:

• addressing

• Byte ordering (Big-endian, Little-endian)

• integer representation

  • char, short, int, long (signed and unsigned);
  • casting and information loss
  • integer arithmetic

• floating point (Standard IEEE 754 single and double precision)

  • float, double, long double

c11 - Syntax, Tips and Tricks

A lot of articles focused on c11 standard, the core of the language is also treated,

How to compile programs

The programs will be compiled with two standard:

• iso9899:1999, -std=c99

• iso9899:2011, -std=c11 (experimental and incomplete from GCC 4.7)

Architectures for testing code:

• PPC 32 bit (big endian)
• x86 32 bit (little endian)
• x86 64 bit (little endian)

Each program can be compiled both gcc and clang:

$ gcc main.c -o main

$ clang main.c -o main

Or with more detail:

$ gcc -o main main.c -g -Wall -pedantic -std=c99 | oppure -std=c11

$ clang -o main main.c -g -Wall -pedantic -std=c99 | oppure -std=c11

Note: -ansi option equals -std=c90 -std=c90 option equals -std=c89

`*Luca Suriano a.k.a. Behemoth*: `