Den 02-05-2011 23:20, Vicente BOTET skrev:
Message du 02/05/11 22:50 De : "Thorsten Ottosen" A : boost@lists.boost.org Copie à : Objet : Re: [boost] [BOOST CORE C++ Feature] the super or base keyword for C++
Den 01-05-2011 07:54, tymofey skrev:
I was wondering if it makes sense to add the well known super or base keyword to the C++ language in a generic way. C++ has multiple inheritance, while java and C# do not, so super would be ambigous.
Please see
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2881.html
It will be great if this technique could be used to emulate single inheritance base class aliases, so instead of duplicating the base type
The single remaining problem is the forward constructor.
[snip]
We could add a macro that generates base like classes with specific names and have
template class bitset : PRIVATE_BASE_ALIAS(_Base, (_Base_bitset < ((_Nb)< 1 ? 0 : ((_Nb) + numeric_limits::digits - 1) / numeric_limits::digits)
)) { // private_base introduce _Base type in scope here };
Of course macros are ugly and needs to double braquets.
Can you elaborate more on what you mean? If there is only one base class, we can just say using base::base; If there are more base classes, then we probably can use either of the inherited cobstructors. -Thorsten