Coding Style

The programming language used is ***POSIX C99*** and all code must be written 
in ***POSIX C99***, no extensions are used.

The coding style is as follows:

General
-------
*The code shall be as simple to understand as possible, add comments if 
necessary*

*For indentation, the code shall use tab characters*

*The code shall avoid using GNU-specific functions (as that would make 
the program less portable)*

*Each line shall not exceed 79 characters*

*Utilities shall only implement POSIX-compliant options, if the utility 
supports options, and the specified option is invalid, the utility shall 
print a help text (this applies only to coreutils)*

*Utilities shall only use the *standard C library and POSIX libraries**

*For comments, instead of using `//` (as in `// Comment`), the code shall 
use `/*` and `*/` (as in `/* Comment */`)*

*For commenting code, use `//` (as in `// printf("broken code")`)*

*Variable names shall describe the variable's purpose*

*The `main()` function shall be placed at the top, after function 
prototypes, to increase code readability*

Blocks
------
*In a block, do not use `{` and `}` if there's only one instruction inside*

	for (int i; i != 3; i++)
		printf("%d\n", i);

*When using `{` and `}`, `{` shall not be on it's own line*

	if (i) {
		printf("%d", i);
		i = 3;
	}

*The block shall only use 1 line if there's only one instruction ran and 
that shall not exceed 79 characters*

	if (foo[1] == 'a') foo[1] = 'b';

Functions
---------
*The function type shall be on the same line as the function name and `{`*

	int main() {
		printf("Hello World.\n");
	}

*Function names shall describe the function's intended purpose*

*When exiting, the function shall use `return` instead of `exit()`*
	
	int calculate(int i) {
		int result;
		if (i != 0)
			result = 30 / 1;
			return 0;
		else
			return 1;
	}

*Variable declarations shall be at the top of the function*

	int main() {
		int i, result;
		char foo;
		bool bar;
		...
	}


  for (int i; i != 3; i++)
      printf(“%d\n”, i);


Switch
------
*In `switch (foo)`, `case` shall be indented*

	switch (foo) {
		case 'b':
			break;
		case 'a':
			printf("bar\n");
		default:
			return 0;
	}

Preprocessor statements
-----------------------
*The `#define` preprocessor statement shall only be used for setting 
constant values*

	#define FOO 80

*Preprocessor statements shall not be indented*