From owner-freebsd-hackers  Sun Nov 22 12:17:22 1998
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To: nectar@FreeBSD.ORG
Subject: Re: errno 
Cc: hackers@FreeBSD.ORG
In-reply-to: Your message of "Sun, 22 Nov 1998 10:04:21 CST."
		<XFMail.981122100421.nectar@FreeBSD.ORG> 
References: <XFMail.981122100421.nectar@FreeBSD.ORG>  
Date: Sun, 22 Nov 1998 13:16:34 -0700
From: Warner Losh <imp@village.org>
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In message <XFMail.981122100421.nectar@FreeBSD.ORG> nectar@FreeBSD.ORG writes:
:     #include <errno.h>
:     struct example {
:         int errno;
:     };
: I understand why, but is this code incorrect ANSI C?  I'm just
: trying to find a reference that prohibits this use.

No.  ANSI C specifically allows errno to be a macro.  Since it could
be a macro, a strictly conforming compiler need not accept this
program.

Warner

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