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C++/copy constructor


why do we required to pass a reference to copy constructor?

Srini , Thank you for your question.

The purpose of a copy constructor is to make a copy of a given class instance, specified by a reference to it.

If the class instance were specified directly, the compiler would attempt to make a copy of the given class instance. But that makes no sense, because it is precisely that copy constructor that is being defined.

David Spector


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David Spector


Highly knowledgeable in the C++ language, Visual C++ (MSVC), Windows API, documentation and other quality-assurance techniques, and debugging. Knowledgeable in MFC, COM, GUI design, and object-oriented design.


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