A collection of helper functions to ease porting from QSharedPointer
to std::shared_ptr, by helping with the most egregious API
incompatibilites of QSharedPointer, namely:
- static_pointer_cast overload for QSharedPointer
- dynamic_pointer_cast overload for QSharedPointer
- const_pointer_cast overload for QSharedPointer
- make_qshared - like std::make_shared, but returning QSharedPointer
The casts are designed to be used like their std counterparts
operating on std::shared_ptr. We advise to used unqualified lookup
QSharedPointer<Base> base = make_qshared<Derived>(~~~);
auto derived = dynamic_pointer_cast<Derived>(base); // not KDToolBox::...If you target C++20, then this is also the way to call
std::dynamic_pointer_cast (unqualifed lookup of functions with
explicit template arguments doesn't find candidates by ADL prior to
C++20) For this reason, the functions are defined in inline namespace KDToolBox.
If you restrict your code to the std-compatible subset of QSharedPointer and use the above four functions, then porting from QSharedPointer to std::shared_ptr will be as easy as
s/QSharedPointer/std::shared_ptr/
s/QWeakPointer/std::weak_ptr/
s/make_qshared/std::make_shared/
Enjoy!