c-mode is the default major mode for editing C source files (.c and .h files). It uses cc-mode.

Basic setup

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

Helpful keybindings

[C-M-a]: Go to the beginning of the current function. If you are between 2 functions, go the start of the previous one.

[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.

; set k&r style
(setq c-set-style "k&r")
; indent with 4 spaces
(setq c-basic-offset 4)