Re: [boost] units review

From: Matthias Schabel (boost_at_[hidden])
Date: 2007-04-05 15:37:14

> I think you would need to write the equivalent of a computer algebra
> system to track what variables are "independent", and you would  
> have to
> do so across programming boundaries in a non-trivial way.

Kevin,

Thanks for the thorough synopsis - clearly, the covariance issue is  
the least of the challenges here. You're probably right that it is  
basically impossible to implement in full generality without huge  
runtime overhead since you would need to track the complete history  
of operations for every variable...

Matthias