Use Emacs C-Mode

M-x C-beginning-of-defun
M-x C-end-of-defun
Adjust the cursor to the function header or tail

C-c-u

C-c-P

C-c-n

M-
The inmost c Declaration, can add the prefix N, adjusted to the N-1 statement

M-e
The last C declaration or statement. In the opposite direction of m-.

C-c-l
C-toggle-electric-State can have prefix Parameters

C-c-
C-toggle-auto-newline prefix

Hungry delete:
C-c-<del>
C-c <del>
C-hungry-delete-backwards

C-c-d
C-c-<Delete>
C-c <Delete>
C-hungry-delete-forward

C-toggle-hungry-State enable Deletion

C-c-W
M-x C-subword-Mode
The subword mode is the case-sensitive crossover mode.

M-x C-context-line-break
New Line and indent. The normal encoding is: C-J (newline-and-indent), preprocessing and annotation is m-J (c-intent-New-comment-line ), you need to configure the binding here. Binding method:
(Defun my-bind-CLB ()
(Define-key C-mode-base-map "\ c-J" 'C-context-line-break ))
(Add-hook 'C-initialization-hook 'My-bind-CLB)

C-m-H
Mark the end of the function and place the cursor in the function header.

M-Q
Fill in the parameter. C-fill-paragraph when processing C/C ++ annotations

C-c-e
Run C preprocessing to display the results, including c-macro-expand.

C-c -\
C-backslash-region

M-x CPP-Highlight-Buffer
Highlight part of text based on preprocessing Conditions

C-c-S
Show synchronization information, C-show-syntactic-infomation. The information here shows how the row is indented.

M-x cwarn-Mode
M-x global-cwarn-Mode
Suspicious displayCode

M-x hide-ifdef-Mode
Hide the selected code, which is located in the # If or # ifdef block of the pre-processing code. If you use hide-ifdef-shadow to hide the code as t, the code will be raised.

M-x FF-find-related-File
Search for related files, such as header files. The FF-related-file-alist variable specifies how to find related files.