"Peder Holt" <peder.holt@gmail.com> wrote
As a user of typeof, I would certainly find this very useful. It allows the programmer to take evasive action if the typeof operation fails, by finding a suitable type in another way.
Well, as the discussion about result_of shows, it might make sense. Although, I think, for 99% of uses one just wants the compiler to show which types need to be registered.
#1 would not help me here. #2, on the other hand, allows me check if the type 'returned' by typeof is not_registered. If it is, one can programatically work around it.
my suggestion would yield #2
OK, agreed.
Another useful feature, would be to detect if an expression is too complex. If an expression has a complexity>BOOST_TYPEOF_LIMIT_SIZE, typeof should 'return' boost::type_of::type_too_complex or similar.
This can be achieved in a similar way to what I suggested earlier.
Right. Let's just say it can be done if there is a specific request for this. I would not like to add any features that are not going to be used. Regards, Arkadiy