C Coding Standard: Difference between revisions
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[[Category:Coding Standards]] | [[Category:Coding Standards]] | ||
{{UnderConstruction}} | {{UnderConstruction}} | ||
==Language consideration== | |||
* Avoid using assignment inside an expression. | |||
* Never use '''goto''' | |||
* Never use '''return''' if this is not the last instructions 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 | * Always use curly braces, even when there is only one instruction. Instead of | ||
<c>if (a) do_something(); | <c>if (a) do_something(); | ||
| Line 33: | Line 39: | ||
} | } | ||
</c> | </c> | ||
Revision as of 17:01, 22 July 2009
Language consideration
- Avoid using assignment inside an expression.
- Never use goto
- Never use return if this is not the last instructions 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 { ... }