I wrote:
In case you're wondering why I'd interested in such operators, the answer is that I'm thinking of storing objects of type boost::any in an unordered_map. Wouldn't this just be the address of the object (which isn't particularly useable as a key in a map)?
OvermindDL1 wrote:
Actually it would be possible. For example, Adobe's Any version has a streaming operator (which throws I think if the stored type does not support streaming, or just does not accept it, one or the other).
Would you mind providing a link to that please?
The way it does it can easily be extended to handle a == of the internal value (not just the type) as well.
Actually, I found out that I can store addresses of objects of type any in a set and get my desired functionality. But, I would still need to implement a wrapper around Boost.Any.
Hmm, perhaps it is time for an extended Boost.Any that supports 'concepts' of a sort of the stored types. Hmm, Boost.Proto could probably simplify the scaffolding a lot as well...
In fact, I'm in need of that for a maniac idea to be used by my Proto components. So, I would be interested to hear more about this if you don't mind. TTFN, --Hossein