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  • INTERVIEW QUESTIONS LANGUAGES C++ DETAILS
    Question :
    Define copy constructor? What is the use of copy constructor?


    Category C++ Interview Questions
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    Added on 7/19/2006
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    Answers:

    A copy constructor is used to initialize a newly declared variable from an existing variableA variable is declared which is initialized from another object,A value parameter is initialized from its corresponding argument.f(p); // copy constructor initializes formal value parameter. An object is returned by a function.C++ calls a copy constructor to make a copy of an object in each of the above cases. If there is no copy constructor defined for the class, C++ uses the default copy constructor which copies each field, ie, makes a shallow copy.





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