From:	Erik Max Francis <max AT alcyone DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Really Huge Numbers
Date:	Thu, 16 Jul 1998 02:02:09 -0700
Organization:	Alcyone Systems
Lines:	34
Message-ID:	<35ADC191.7FFBCEE@alcyone.com>
References:	<35ace841 DOT 0 AT news DOT provide DOT net>
NNTP-Posting-Host:	kamali.alcyone.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Lord Daedron wrote:

> I wish to store
> the file sizes of all files packed in my compressed archive, along
> with the
> total of all file sizes.  Using an unsigned int ( I read this is same
> as
> unsigned long? )

In DJGPP and many Unix systems, yes.

> this gives me a maximum of about 4 megs ( any bigger
> numbers will overflow ).

You mean four gigs.  2^32 = 2^2 x 2^30 = 4 x 1024^3.

Four gigs is a lot.  Are you sure you're not just misunderstanding the
size limitation?

> Is there a bigger integer type or a class for
> stroing really huge numbers so I could install more than 4 megs?

There is a nonstandard GNU extention for the long long, which is 64
bits.  Or, you could always tally up the file sizes in larger increments
(i.e., only counting 1024 or 1024^2 byte increments, rather than every
single byte).

-- 
         Erik Max Francis, &tSftDotIotE / mailto:max AT alcyone DOT com
                       Alcyone Systems / http://www.alcyone.com/max/
  San Jose, California, United States / icbm:+37.20.07/-121.53.38
                                     \
           I put away my nine, fool / 'cause I'm colorblind.
                                   / Ice Cube

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