Jeffrey Hellrung escribió:
Ion,
With your current move-emulation approach, it looks like functions like vector::push_back could actually capture genuine rvalues, similar to how operator= does, via BOOST_COPY_ASSIGN_REF( T ) for movable types T (and using const T& for nonmovable types). For example:
Yes, I know that, but I had no time to update containers to take advantage of this feature. I'll try to do it before the review, I think you need 3 overloads for C++03 systems: //const T & for C++0x, const boost::rv<T> & for C++03 push_back(BOOST_COPY_ASSIGN_REF(value_type)v); //T && for C++0x, boost::rv<T> & for C++03 push_back(BOOST_RV_REF( T ) value); #ifdef BOOST_HAS_RVALUE_REFS push_back(value_type & v) { push_back(const_cast<const value_type &>(v); } #endif However, I haven't found a way to generalize it for perfect forwarding (emplace, emplace_back) because the template parameters must be deduced from arguments and that does not work as push_back. I need help from more talented people ;-) Best, Ion