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c++ Programming Glossary: upcast

When implementing several COM interfaces at once how do I upcast to IUnknown?

http://stackoverflow.com/questions/1742329/when-implementing-several-com-interfaces-at-once-how-do-i-upcast-to-iunknown

implementing several COM interfaces at once how do I upcast to IUnknown Suppose my COM object implements two or more COM.. both base interfaces are derived from IUnknown I cannot upcast implicitly such upcast would be umbiguous. To upcast explicitly.. are derived from IUnknown I cannot upcast implicitly such upcast would be umbiguous. To upcast explicitly I need to use either..

Why exactly do I need an explicit upcast when implementing QueryInterface() in an object with multiple interfaces()

http://stackoverflow.com/questions/1742848/why-exactly-do-i-need-an-explicit-upcast-when-implementing-queryinterface-in-a

exactly do I need an explicit upcast when implementing QueryInterface in an object with multiple.. when I implement QueryInterface for IUnknown I explicitly upcast this pointer to one of the interfaces if iid __uuidof IUnknown..

Is it safe to “upcast” a method pointer and use it with base class pointer?

http://stackoverflow.com/questions/4272909/is-it-safe-to-upcast-a-method-pointer-and-use-it-with-base-class-pointer

it safe to &ldquo upcast&rdquo a method pointer and use it with base class pointer Let's.. points to the original member Clause 5.2.9 9 says you can upcast only if you can also downcast as specified in § 4.11 An rvalue.. once in D's inheritance diagram. The danger inherent in upcasting method pointers is that you could call mp on an object whose..

Pointer to member conversion

http://stackoverflow.com/questions/4295117/pointer-to-member-conversion

portion of the standard says it is perfectly legal to upcast member pointers using an explicit static_cast which is exactly..

dynamic_cast of “this” inside constructor

http://stackoverflow.com/questions/6299266/dynamic-cast-of-this-inside-constructor

A D A struct X X A struct E C D X E D this undefined upcast from E to A might use path E D A but D is not constructed..

C-Style upcast and downcast involving private inheritance

http://stackoverflow.com/questions/844816/c-style-upcast-and-downcast-involving-private-inheritance

Style upcast and downcast involving private inheritance Consider the following..