Coding style
============
Nico Schottelius <nico-cinit]at[schottelius.org>
0.1, for cinit, Initial version from 2006-11-13
:Author Initials: NS

This document describes the coding style used in cinit.


Indent
------
Indent the code by 3 spaces for each level.
Indent variable names, so the names begin all at the same position.
Use three spaces to place them.


Whitespaces
-----------
Where to put or avoid whitespaces (space or linefeed (lf)).


Spaces
~~~~~~
- After closing brace "if(test) return 0;"
- Spaces before and after '=', '>', '<', '==', '!='', '>=', '<=', '>>', '<<', '&', '&&', '|', '||'
- After start of comment and before end of comment: '/* text */'


   After ')', ','

No spaces
~~~~~~~~~
- Within braces and code "(!test)", 
- Before braces "if(code)"
- No space before ), so if '))', do not put a space after the first ')'


Linebreaks
~~~~~~~~~~
This somehow includes the setting of braces (indirectly through (not) setting
spaces.

If
^^

Put the if, the braces and the opening curly brace on one line,
put the closing one together with `else` and the new opening
curly brace on one line:

------------------------------------------------------------------------------
if(...) {
   /* code */
} else {
   /* else: code */
}
------------------------------------------------------------------------------

While
^^^^^
------------------------------------------------------------------------------
while(condition) {
   /* repeat */
}
------------------------------------------------------------------------------

Do-While
^^^^^^^^
------------------------------------------------------------------------------
do {
   /* something */
} while(running);
------------------------------------------------------------------------------

Switch
^^^^^^

------------------------------------------------------------------------------
switch(value) {
   case DO_SOMETHING:
      /* code */
      break;
   default:
      break;
}
------------------------------------------------------------------------------



Where to put curly braces
-------------------------

Functions
~~~~~~~~~
Opening and closing curly braces are placed on a seperate row:

------------------------------------------------------------------------------
int func(int params)
{
   body
}
------------------------------------------------------------------------------


If, else, while, do-while
~~~~~~~~~~~~~~~~~~~~~~~~~
See above.


Comments
---------
where necessery, do not state the obvious in comments:

      /* this code increments tmp */
      ++tmp;

If there is more than one line containing a comment, try to adjust them
so they look the same in width and position:

------------------------------------------------------------------------------
   int illuminati                = 23; /* do not want to comment that   */
   int the_answer_to_everything  = 42; /* 42.                           */ 

   [...]

   while(illuminati < the_answer_to_everything) {  /* only try before them  */
      overtake_world(&self);                       /* overtake is complex   */ 
   }
------------------------------------------------------------------------------


Header
-------
Put a header into each file, containing:

   - Date of file being put into existence (year is enough)
   - Name and e-mail (obfuscated if you want) of the author(s)
   - Description of the function
   - Copyright statement (if not included GPLv2 or later is assumed)


Includes
~~~~~~~~
Include system headers first, then place own headers. Comment the includes,
wherefore you added them. Example:

------------------------------------------------------------------------------
#include <unistd.h>     /* write          */
#include "cinit.h>      /* cinit_ipc_*    */
------------------------------------------------------------------------------