Message-Id:	<200007041600.TAA26298@alpha.netvision.net.il>
Date:	Tue, 04 Jul 2000 19:01:48 +0200
To:	Kalum Somaratna aka Grendel <kalum AT lintux DOT cx>
X-Mailer:	Emacs 20.6 (via feedmail 8.2.emacs20_6 I) and Blat ver 1.8.5b
From:	"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
CC:	djgpp AT delorie DOT com
In-reply-to:	<Pine.LNX.4.21.0007042115050.1185-100000@roadrunner.grendel.net>
	(message from Kalum Somaratna aka Grendel on Tue, 4 Jul 2000 21:17:57
	+0600 (LKT))
Subject:	Re: Where can I get a Thread safe malloc debugger?
References:	<Pine DOT LNX DOT 4 DOT 21 DOT 0007042115050 DOT 1185-100000 AT roadrunner DOT grendel DOT net>
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> Date: Tue, 4 Jul 2000 21:17:57 +0600 (LKT)
> From: Kalum Somaratna aka Grendel <kalum AT lintux DOT cx>
> 
> "It will probably port to any ANSI/POSIX system that provides mmap(), and
> mprotect(), as long as mprotect() has the capability to turn off all
> access to a memory page, and mmap() can use /dev/zero or the MAP_ANONYMOUS
> flag to create virtual memory pages."
> 
> What does this /dev/zero mean

/dev/zero is a device reading from which yields zeroes.  You can read
as many zero bytes as you need for than device.

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