Re: [boost] units: review

From: Matthias Schabel (boost_at_[hidden])
Date: 2007-04-02 15:42:44

> Do the casts give you anything that dividing by the unit doesn't  
> get for
> you?  For example, if we have a quantity len, and we want to get  
> the value:
>
>      quantity<SI::length> len = 2.0 * SI::meters;
>      double d = len / SI::meters; // <---- gets the value!!

We're mainly concerned here about getting a non-const reference to  
the actual data. In the release version, we will be eliminating the  
existing quantity_casts as they are redundant and replacing them with  
one that allows direct mutating access to the underlying value_type...

Matthias