> -Werror=unused-but-set-variable
> In some cases (often from
> macro expansion) you just want to keep such unused variables
> around. You can in that case just cast them to void,
> or add __attribute__((__unused__)) to them.
Some code employs a macro:
#define UNUSED(a) (void)(a)
It is portable and easy to use, provides documentation, facilitates maintenance.
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