From owner-freebsd-hackers  Sat Jul 29  3:55: 2 2000
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Date: Sat, 29 Jul 2000 11:54:56 +0100
From: David Malone <dwmalone@maths.tcd.ie>
To: Mark Ovens <marko@freebsd.org>
Cc: hackers@freebsd.org
Subject: Re: ANSI compliance, gcc(1) and FreeBSD
Message-ID: <20000729115456.A65276@walton.maths.tcd.ie>
References: <20000729115153.C236@parish>
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In-Reply-To: <20000729115153.C236@parish>; from marko@freebsd.org on Sat, Jul 29, 2000 at 11:51:53AM +0100
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On Sat, Jul 29, 2000 at 11:51:53AM +0100, Mark Ovens wrote:

> In the ANSI Standard (K&R 2e, A7.14 & A7.15) it states that, in the
> case of the ``&&'' operator, the right operand is evaluated only if
> the left operand evaluates to non-zero, and, for ``||'', the right
> operand is evaluated only if the left operand evaluates to zero.
> 
> My questions are: does gcc(1) honour this, and is it permitted to rely
> on this behaviour in FreeBSD (base system)?

Lots of C code would break if this wasn't honoured. Gcc deals with it
just fine.

	David.


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