#361 Q_NEW_X() fails when QEVT_DYN_CTOR is defined

[Quantum Leaps]

When QEVT_DYN_CTOR is defined, the macro Q_NEW_X() becomes variadic and performs initialization of the event parameters (RAII for dynamic events). However, when the allocation fails, the initialization via the ctor() member function fails, because it is called on a nullptr (this == nullptr). This crashes the program.
--MMS

[Quantum Leaps]

This issue has been fixed by re-designing the feature of event initialization at the point of dynamic allocation. Please see the documentation of QEvt::init() at https://www.state-machine.com/qpcpp/class_q_p_1_1_q_evt.html

--MMS