Re: [Boost-users] for_each on container of any

From: Peter Dimov (pdimov_at_[hidden])
Date: 2004-10-15 07:01:59

Frank Birbacher wrote:
> Hello!
> 
> I like the idea of containers (e.g. std::vector) of boost::any.
> But I'd like to execute some operation on each item of the
> sequence. Unfortenuately I would need to know the set of types in
> the container and check every one of them if I was going to use
> the std::for_each with a void(*)(boost::any&). That's not good at
> all. I'd like to pass a function object like:
> 
> struct MyOperation
> {
>   template<typename T>
>   void operator() (T&) const;
> };
> 
> How can I do so?

Not with boost::any, but you can do the above with boost::variant.