From: David Abrahams (dave_at_[hidden])
Date: 2003-04-16 11:29:04
Matthias Troyer <troyer_at_[hidden]> writes:
>
> I never not needed mutable yet in any code of mine using random number
> generators. Could you give an example that shows where it is needed?
It's never needed because you can always pass the generator through
an adaptor:
template <class F, class T = F::result_type>
struct nullary_const_function
{
nullary_const_function(F& f) : f(f) {}
T operator() const { return f(); }
F& f;
};
(or something).
It's just a matter of convenience.
-- Dave Abrahams Boost Consulting www.boost-consulting.com