Re: [Boost-users] [units] Creating specific unit quantities

Subject: Re: [Boost-users] [units] Creating specific unit quantities
From: Ryan (mccorywork_at_[hidden])
Date: 2011-03-03 14:02:00

On Thu, Mar 3, 2011 at 12:02 PM, Matthias Schabel
<boost_at_[hidden]>wrote:
>
> I don't really understand what you're trying to accomplish.

I'm trying to add two quantities together.  One quantity was created using
the si system and the other was created directly.

> That explains why "si::length" and "meters" are different
> things...basically, "meters" is an instance of si::length.

 quantity<si::length> L = 2.0 * meters;

I thought what this meant was a quantity value was being creating with the
si::length dimension.  The unit of measurement for si::length is the meter
and therefore the value 2.0 is being stored as 2.0 meters.  I thought this
was confirmed when the display of the quantity value showed "2 m".  If this
isn't what is occurring could you shed some light on this?

Ryan