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Date: Tue, 18 Jun 2019 09:36:41 -0700
From: Ori Bernstein <ori@eigenstate.org>
To: 9front@9front.org
Subject: Re: [9front] Ape: Fix assert warnings.
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On Tue, 18 Jun 2019 16:35:07 +0200, cinap_lenrek@felloff.net wrote:

> this is not full fix tho. it still warns for non-constant case...

stdio putc has a similar issue to this, but it *needs* to 
return an int, so a void cast isn't quite enough anyways.

I'd thought of making USED() an expression, so we could do:

	x = USED(a?b:c)

Thinking about it more, a better solution may be to say that
if one of the ternary branches has side effects, the other is
implicitly USED(), which will solve this warning.

	0 ? 0 : 1

should warn, but

	1 ? 0 : printf("nope");

should be silent, because printf has a side effect.