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To: Joe Buck <jbuck@synopsys.com>
Cc: gdr@codesourcery.com (Gabriel Dos Reis), max@e-soft.ru (Maxim Dementiev),
   gcc@gcc.gnu.org, libstdc++@gcc.gnu.org
Subject: Re: GCC 3.0.2: errno conflict.
References: <200112160345.TAA29861@atrus.synopsys.com>
From: Gabriel Dos Reis <gdr@codesourcery.com>
In-Reply-To: Joe Buck's message of "Sat, 15 Dec 2001 19:45:54 -0800 (PST)"
Organization: CodeSourcery, LLC
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Date: Sun, 16 Dec 2001 01:45:00 -0000
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Joe Buck <jbuck@synopsys.COM> writes:

| > | I think that the conclusion is that, since you did not include <errno.h>
| > | or <cerrno> explicitly, there is a bug.
| > 
| > No, the C++ standard explicitly grants right to standard headers
| > (except those inherited from C and the <cxxx> variants) to #include
| > any other header.  A well wriitten C++ program  should not make any
| > assumption about which header #includes which.  From that point of
| > view, I would say the testcase is ill-designed.
| 
| Are you saying, then, that "errno" is a reserved identifier in C++ for all
| programs that include any standard headers?

any standard headers except those inherited from C and their <cxxx>
variants.  The Standard is clear about that.  Quote has been provided
elsewhere in this thread.

| I am skeptical of this argument.

Trust it or not but that is not my invention :-)

-- Gaby
CodeSourcery, LLC                       http://www.codesourcery.com