on Thu Oct 20 2011, "Robert Ramey" <ramey-AT-rrsd.com> wrote:
Confusion arises when one googles C++ opaque type. This raises a number of papers which address the subject but seem to suggest that the "template alias" feature will create a new type. But a careful reading of the latest documents suggest that this is not the case.
Correct. It's a new name for the same type.
This is the motivation for my question.
Of course one define a macro
#define NEW_OPAQUE_TYPE(new_name, current_type) \ struct new_name : public current_type {};
but I haven't really considered all the implications of this in depth.
To summarize, I expected to find a new feature in C++0X but found something else - now I'm wondering what I missed.
I don't think you missed anything. -- Dave Abrahams BoostPro Computing http://www.boostpro.com