Run-Time Type Identification And Destructors

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When destructor cleanup is enabled, a pointer to a class with a virtual destructor can't be deleted if that class is not compiled with run-time type identification enabled. The run-time type identification and destructor cleanup options are on by default. They can be disabled from the C++ page of the Project Options dialog box, or by using the -xd and -RT command-line options.


 class Alpha {
    virtual ~Alpha() {
 void func(Alpha *Aptr) {
    delete Aptr; // Error.  Alpha is not a polymorphic class type

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