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CodingStyle.txt
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CodingStyle.txt
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$Id$
vim: spelllang=en tw=78
This is a short introduction to the coding style that shall be used. The below
rules are applicable for all C source files, except the Ethernet drivers, for
which the Linux Kernel coding style shall be used to minimize the
differences).
1) Line length
- Lines shall not exceed 78 characters.
2) Whitespace
- Indentation shall be done using 4 space characters
- No whitespace shall be left at the end of a line.
- After commas, colons and semicolons, a single space shall be
placed (if not followed by a line break).
- Binary operators (=, ==, ~=, |, ||, etc.) shall be enclosed by 2 spaces
(except . and ->).
3) Placing braces
- Braces shall be placed in the following way (K&R style):
if (...) {
...
} else if (...) {
...
} else {
...
}
int function(...)
{
...
}
4) Defines and Macros
- Defines and macros shall be named in CAPITAL letters. If a macro contains
multiple statements, they should be enclosed by a 'do {} while (0)' loop.
Macro parameters shall also be capital letters and shall be enclosed py
parantheses if necessary.
#define MACRO(A, B) \
do { \
if ((A) == 1) { \
statement(B); \
} while (0)