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Date:      Tue, 23 Oct 2001 16:59:26 -0400
From:      The Anarcat <anarcat@anarcat.dyndns.org>
To:        Libh <freebsd-libh@freebsd.org>
Subject:   tcl integer limitations
Message-ID:  <20011023165922.F526@shall.anarcat.dyndns.org>

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[-- Attachment #1 --]
Hi.

I'm working on making it possible to change the size units in the label
editor and the fdisk editor.

Inevitably, I must use bytes instead of sectors to represent the sizes.

The problem is that this overflows tcl's default integer type (long):

anarcat@shall[~/libh/release/diskedit]% bc 
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'. 
60030432 * 512
30735581184
anarcat@shall[~/libh/release/diskedit]% tclsh8.3
% expr 60030432 * 512
670810112
% expr 30735581184
integer value too large to represent

I guess the proper solution is to use a floating points, but that seems
evil to me...

Unless anyone has a better idea, i'll use floating point. Or at least
try. ;)

A.

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