On 27.06.2008, at 09:04, Stéphane Ducasse wrote:
we should harvest the Units....latest version
Do we want it as part of the image?
I am a fan of growing the number (and deepness) of abstractions
available
as part of what one percives as the "language"... e.g. I am quite sure
that the
math capabilities of the programming language of the future will be
more similar to
mathematica then to C.
Having "native" support for dealing with Units is, I think, something
that a language
should have built in. In most situations, numbers are used to model
something that has
a unit... and today we have the memory and processing power to model
this in most
cases.
The units package allows one to write expressions like:
25 inches as cm
and do calculations with these units.
But there is always the danger of putting "too much" into a system.
All the stuff we are
cleaning now in pharo is an example for that. So there is definitely a
tension between
providing more abstraction vs. simplifying the system to it's bare
minimum.
For the units, I lean towards including them.
Marcus
Begin forwarded message:
From: "Marcus Denker" <[EMAIL PROTECTED]>
Date: June 24, 2008 2:11:45 PM CEDT
To: "Balázs Kósi" <[EMAIL PROTECTED]>
Cc: The general-purpose Squeak developers list <[EMAIL PROTECTED]
>
Subject: Re: [squeak-dev] Units package
Reply-To: The general-purpose Squeak developers list <[EMAIL PROTECTED]
>
Hello,
the bug seems to be fixed in the last version. I harvested the
test to make sure (this is
in Units-md.16 on SqueakSource)
The versions starting with -14 contain many enhancements (and the
bugfix). This was contributed
by Pinesoft (http://www.pinesoft.co.uk/).
Maybe the universe version could be updated?
Marcus
--
Marcus Denker -- [EMAIL PROTECTED]
http://www.iam.unibe.ch/~denker
On Thu, Jun 19, 2008 at 4:56 PM, Balázs Kósi <[EMAIL PROTECTED]>
wrote:
> UnitValue >> hash
> ^value hash bitXor: unit hash
>
> and
>
> testEquality
>
> self deny: (60 units: #seconds) hash = (60 units:
#meters) hash.
> self deny: (60 units: #seconds) = (60 units: #meters).
> self deny: (60 units: #seconds) hash = (1 units:
#minutes) hash.
> self assert: (60 units: #seconds) = (1 units: #minutes).
Much better :)
Cheers, Balázs
ps: cc-d to Marcus Denker, because he seems to be maintainer of
the package.
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