Re: [Boost-users] Boost has a function to const-qualify?

From: Thorsten Ottosen (tottosen_at_[hidden])
Date: 2006-01-16 11:34:39

MB wrote:
> Sebastian Redl wrote:
>
> 
> I think 'add_const' is reserved for Boost.TypeTraits.
> 
> I post this tiny proposal to Boost.Devel anyway.
> 

When we discussed the wg21 proposal many months ago and I added
const_begin() etc to boost.range, Dave Abrahams used this function

template< class T >
inline T const& as_const( T const& r )
{ return r; }

Similarly, we might add

as_volatile();
as_const_volatile();
as_mutable();

The latter would be a cast from rvalue to lvalue like it happens in 
boost.foreach.

-Thorsten