C Coding Standard

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Language consideration

• Avoid using assignment inside an expression.
• Never use goto.
• Never use return if this is not the last instruction of a routine.
• Use break only to separate branches of a switch statement.

Style

• Always use curly braces, even when there is only one instruction. Instead of

if (a) do_something();

write

if (a) {
	do_something();
}

• Place opening brace at the same line as the condition as in

while (expr) {
	...
}
for (;;) {
	...
}

unless the expression is very long as in

if
	(very_long_expression)
{
	...
}

• Surround else with braces as in

if (expr) {
	...
} else {
	...
}