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From: Eli Zaretskii <eliz@gnu.org>
To: Andreas Schwab <schwab@suse.de>, Denis PILAT <denis.pilat@st.com>
Cc: Chet Ramey <chet.ramey@case.edu>,
	gdb-patches@sources.redhat.com,         bash-maintainers@gnu.org
Subject: Re: [patch-readline] history file reading
Date: Thu, 23 Mar 2006 04:55:00 -0000	[thread overview]
Message-ID: <uk6any3ll.fsf@gnu.org> (raw)
In-Reply-To: <20060321153308.GC27369@brasko.net> (message from Bob Rossi on 	Tue, 21 Mar 2006 10:33:08 -0500)

> Date: Tue, 21 Mar 2006 10:33:08 -0500
> From: Bob Rossi <bob_rossi@cox.net>
> Cc: Denis PILAT <denis.pilat@st.com>, Chet Ramey <chet.ramey@case.edu>,
> 	Eli Zaretskii <eliz@gnu.org>, gdb-patches@sources.redhat.com,
> 	bash-maintainers@gnu.org
> 
> > line_end[-1] whould be much better readable, IMHO.
> 
> Can you even index into an array with a negitive number?

Yes, provided that the result is valid, i.e. it doesn't reference an
address outside the array.

In fact, in C, `*(foo -1)' and `foo[-1]' is literally the same thing
by the language rules, and the compiler produces identical code for
both expressions.


  parent reply	other threads:[~2006-03-21 19:55 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-17  0:15 [patch-readline] history file generation on minGW host Denis PILAT
2006-03-17  0:26 ` Daniel Jacobowitz
2006-03-17  0:31   ` Denis PILAT
2006-03-17 16:07 ` Eli Zaretskii
2006-03-17 19:12   ` Denis PILAT
2006-03-17 19:37     ` Chet Ramey
2006-03-21 15:30   ` [patch-readline] history file reading Denis PILAT
2006-03-21 15:32     ` Chet Ramey
2006-03-21 15:38       ` Daniel Jacobowitz
2006-03-21 16:29         ` Andreas Schwab
2006-03-21 16:42           ` Bob Rossi
2006-03-21 16:46             ` Daniel Jacobowitz
2006-03-23  4:55             ` Eli Zaretskii [this message]
2006-03-21 19:52         ` Brian J. Fox
2006-03-21 19:55           ` Daniel Jacobowitz
2006-03-21 20:02           ` Andreas Schwab
2006-03-23  5:15             ` Eli Zaretskii
2006-03-23  4:37         ` Eli Zaretskii

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