From: "Zack Weinberg" <zackw@stanford.edu>
To: Michael Meissner <meissner@cygnus.com>
Cc: Aparna Ranish <aparna_ranish@rediffmail.com>,
"gcc-help@gcc.gnu.org" <gcc-help@gcc.gnu.org>,
"gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Re: trigraphs ????
Date: Thu, 05 Jul 2001 10:45:00 -0000 [thread overview]
Message-ID: <20010705104508.C1926@stanford.edu> (raw)
In-Reply-To: <20010705123957.B13188@cse.cygnus.com>
On Thu, Jul 05, 2001 at 12:39:57PM -0400, Michael Meissner wrote:
> On Thu, Jul 05, 2001 at 07:15:53AM -0000, Aparna Ranish wrote:
> > Hi
> > Can somebody tell me what is the usage of trigraphs ??? Is it supported by
> > all the Compilers.
>
> It is required to be supported by all ISO standard compilers. The
> usage of trigraphs is to work around problems where some characters
> in the C source character set aren't available in the local
> character set (ie, some varients of ISO 646 in other countries use
> the same byte value for curley braces and other characters).
However, note that trigraphs are disabled by default in GNU C/C++/ObjC.
To enable them, you must use a command line switch: any of -trigraphs,
-ansi, -std=c89, -std=c99, -std=c++98 will do the trick. The latter
four have other effects as well.
--
zw You have to care about the 'fair trial' part; you have to care about
the 'due process of law' part, and you have to care about these things
*more* than you care about putting child molestors away.
-- Graydon Saunders
next prev parent reply other threads:[~2001-07-05 10:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-05 0:10 Aparna Ranish
2001-07-05 9:40 ` Michael Meissner
2001-07-05 10:45 ` Zack Weinberg [this message]
2001-07-05 7:59 Yann Collete
2001-07-05 9:47 ` Ingo Krabbe
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