CC-mode

2012-05-26T00:07:08Z

Mctpyt:

{{Infobox major-mode
|title = C
|library = cc-mode
|command = c-mode
|builtin = yes
|auto activates = *.c *.h *.xbm *.xpm *.y *.yacc *.lex *.i *.m
}}

'''c-mode''' is the default [[major mode]] for editing [[C]] source files. Its major features are customizable indentation and font-locking (coloring of code).








= Basic setup =

c-mode is bundled with Emacs by default. No additional setup is required.

= Helpful keybindings =

; {{Keys|C-M-a}}
: Go to the beginning of the current function. If you are between 2 functions, go the start of the previous one.

; {{Keys|C-M-e}}
: Go to the end of the current function. If you are between 2 functions, go to the end of the next one.

; {{Keys|C-M-h}}
: Mark current function

; {{Keys|M-a}}
: Go to beginning of current statement (or next one).

; {{Keys|M-e}}
: Go to end of current statement (or previous one).


= Common Customization =


== Style ==
Any mode based on {{ModeLink|cc-mode}} provides automatic indentation. The default style is <code>gnu</code>. It is the one recommended by the Free Software Foundation for GNU projects but you can use a different one.

Here is a basic list of predefined styles:
; <code>gnu</code>
: The default style for GNU projects
; <code>k&r</code>
: What Kernighan and Ritchie, the authors of C used in their book
; <code>bsd</code>
: What BSD developers use, aka “Allman style” after Eric Allman.
; <code>whitesmith</code>
: Popularized by the examples that came with Whitesmiths C, an early commercial C compiler.
; <code>stroustrup</code>
: What Stroustrup, the author of C++ used in his book
; <code>ellemtel</code>
: Popular C++ coding standards as defined by “Programming in C++, Rules and Recommendations,” Erik Nyquist and Mats Henricson, Ellemtel
; <code>linux</code>
: What the Linux developers use for kernel development
; <code>python</code>
: What Python developers use for extension modules
; <code>java</code>
: The default style for java-mode (see below)
; <code>user</code>
: When you want to define your own style

You can look the [http://cc-mode.sourceforge.net/html-manual/Built_002din-Styles.html#Built_002din-Styles cc-mode documentation] for a complete list of builtin style.
For visual example of each style you can look the [http://en.wikipedia.org/wiki/Indent_style Wikipedia article on indenting style].

* The default style is set via the variable {{Variable|c-default-style}}
* Use {{CommandKeys|C-c .|c-set-style}} to change the indentation style of the current buffer.
* The amount of space use to indent is set via the variable {{Variable|c-basic-offset}}.

To set the default style to K&R and use 4 spaces, add this to your {{EmacsConfigFile}}:

<source lang="lisp">
; set k&r style
(setq c-default-style "k&r")
; indent with 4 spaces
(setq c-basic-offset 4)
</source>



= [[GNU/Linux]] =




= [[OS X]] =




= [[Windows]] =




= [[Emacs-24]] =





= [[Emacs-23]] =




= Recommended Reading =




= Project Pages =
* [http://cc-mode.sourceforge.net/ cc-mode]



= Tutorial Pages =






Nice visual preview of different cc mode styles: http://davidha.wordpress.com/2009/05/15/emacs-cc-modes-built-in-styles-gallery/

[[Category:Programming]]

WikEmacs - User contributions [en]

CC-mode