Re: compilers and unused args in functions

["Greg A. Woods" <woods%planix.ca@localhost>]

At Fri, 5 Jul 2024 10:03:05 -0400 (EDT), Mouse <mouse%Rodents-Montreal.ORG@localhost> wrote:
Subject: Re: compilers and unused args in functions
>
> One is
>
> 	(void)arg;

This is, in my opinion, the one correct way to explicitly and with
intent "use" an otherwise unused variable or parameter.

It is after all idiomatic C when used with more complex expressions,
such as function calls.

Here "arg" is a valid expression, and a "(void)" cast discards or
ignores the result of an expression.

The abstraction of __USE() seems unnecessary and more difficult to read.

--
					Greg A. Woods <gwoods%acm.org@localhost>

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