Re: [boost] Boost Units library preview

From: Andy Little (andy_at_[hidden])
Date: 2006-08-23 07:52:35

"Andy Little" <andy_at_[hidden]> wrote in message news:...

> It could be in Quan, by more querying of the unit and disallowing the 
> calculation in this case. At one point Quan (in a previous incarnation) did do 
> this, but then maybe there are situations where adding or comparing torque and 
> energy is appropriate, so I opted for the freer semantics. If there is a proof 
> of some sort that they can never be compared or added then I will change the 
> current semantics, but I am not enough of an expert to say for sure.

I should clarify that by a proof I mean a proof that no two dimensionally 
equivalent, but different, quantities can ever be added, rather than just torque 
and energy. It isnt possible to proceed on a case by case basis as there is an 
infinite number of scenarios.

regards
Andy Little