Exception handing in program can connect the unexpected events to higher exections context, it's able to recover from the abnormal events better.
C++ could specify whether or a function could throw exceptions too.
void MyFunc() throw(...) { throw 1; } throw could emit any type: string, int, class, .... class CTest{ }; void MyFunc() { CDtorDemo D; cout<< "In MyFunc(). Throwing CTest exception./n"; throw CTest(); }