On Thu, 2015-03-19 at 18:27 +0100, Bartosz Golaszewski wrote:
> Describe proper naming convention for local variables in macros
> resembling functions.
[]
> diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
[]
> +5) namespace collisions when defining local variables in macros resembling
> +functions:
> +
> +#define FOO(x) \
> +({ \
> + typeof(x) ret; \
> + ret = calc_ret(x); \
> + (ret); \
trivia: ret wouldn't need parentheses here.
> +)}
> +
> +ret is a common name for a local variable - __foo_ret is less likely
> +to collide with an existing variable.
Is shadowing really much of a problem here?
These are statement expression macros and names
have local scope anyway.
It's similar to function arguments using the same
names as parameters.
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