Date: Thu, 5 Feb 1998 12:00:00 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: GAMMELJL AT SLU DOT EDU
cc: djgpp AT delorie DOT com
Subject: Re: problem with 'new' in plain DOS
In-Reply-To: <01IT6WBFNODYC5983X@SLU.EDU>
Message-ID: <Pine.SUN.3.91.980205115936.28596K-100000@is>
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On Wed, 4 Feb 1998 GAMMELJL AT SLU DOT EDU wrote:

> //    For zsize3=2^n, the actual available memory drops to 1/2
> //of the available memory reported by go32-v2.
> //    For zsize3=(2^n) - 1, the actual available memory is close
> //to the available memory reported by go32-v2.  

This is a known misfeature of the current `malloc': it adds a 4-byte
overhead to the requested size and then rounds up the result to the
nearest integral power of 2.  The next DJGPP release will have a
different implementation of `malloc'.  You can find several
experimental versions on DJ Delorie's site,
http://www.delorie.com/djgpp/.  Or you can use some alternate
implementation of `malloc' that is available from the net.  Check the
DJGPP mail archives for some pointers.