[boost] Re: summary of casts.hpp suggestions

From: Valentin Bonnard (Bonnard.V_at_[hidden])
Date: 1999-09-20 10:01:03

C. Green wrote:

> The principle to keep in mind is to define the most narrow casting
> functions that are as specific as possible. 

Keep in mind that exact_cast<OriginalType, TargetType> (lvalue) 
is the most specific cast possible, but maybe it's _too_ 
specific. Definition of exact_cast follows:

template <typename OriginalType, typename TargetType>
TargetType exact_cast (OriginalType& x)
{ return (TargetType)x; }

being too specific doesn't help either.

-- 
Valentin Bonnard