(void)foo or __unused foo ?

[Poul-Henning Kamp]

In message <20120727093824.GB56662 at onelab2.iet.unipi.it>, Luigi Rizzo writes:

>The alternative way to avoid an 'unused' warning from the compiler
>is an empty statement
>
>	(void)foo;

The thing I don't like about this form, is that it doesn't communicate
your intention, only your action.

Somewhere down my TODO list I have an item to propose instead:

	typedef void unused_t;

	int main(int argc, char **argv)
	{

		(unused_t)argc;
		(unused_t)argv;
		return (0);
	}

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