代码风格
Coding Style¶
Please refer to Linux kernel coding style for the coding style of C language. There may be some differences in specific Linux kernel versions, such as Linux 4.19, but overall it won't change much.
VIM Config¶
The basic configuration of the .vimrc file is as follows:
set tabstop=8
set softtabstop=8
set shiftwidth=8
set cc=80
Code File Format¶
ULPatch use Unix format not DOS or Mac format.
As you can see from manual of dos2unix(1)
In DOS/Windows text files a line break, also known as newline, is a combination of two characters: a Carriage Return (CR) followed by a Line Feed (LF). In Unix text files a line break is a single character: the Line Feed (LF). In Mac text files, prior to Mac OS X, a line break was single Carriage Return (CR) character. Nowadays Mac OS uses Unix style (LF) line breaks.
You may often see the special character ^M under Unix like system if code is DOS or Mac format.
Programming Standards¶
- Never use
%s+strerror(errno)display string describing error number in log, use%minstead.