Interview question unsolved for long time...Plz help

This is a discussion on Interview question unsolved for long time...Plz help within the C++ Programming forums, part of the General Programming Boards category; Please help me with following questions (Multiple choice) No Points if all choices are not ticked Code: **** Which of ...

  1. #1
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    Interview question unsolved for long time...Plz help

    Please help me with following questions

    (Multiple choice)
    No Points if all choices are not ticked

    Code:
    ****   Which of the following code fragments would trigger execution of the copy constructor of MyClass?
    
    1. MyClass  X; MyClass  Y(X);
    
    2. MyClass  X; MyClass  Y; X=Y;
    
    3 MyClass  X; MyClass  Y=X;
    
    4 MyClass  fn1() 
    {   static MyClass  X; 
        return  X; 
    }; 
    const MyClass & Y=fn1();
    
    5 int fn1(MyClass   Y) 
    { return  1; 
    }; 
    int i; MyClass Z; 
    i=fn1(Z);
    
    
    ***  Which of the following is true about default COPY constructor?
    (Multiple CHoice )
    
    1 takes no arguments
    2 exists for any class
    3 performs a shallow copy
    4 will be executed when one object is assigned to another
    5 is compiler generated

  2. #2
    C++まいる!Cをこわせ! Elysia's Avatar
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    Ah, and this is an assignment of sorts? Questions you need to know the answer to?
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  3. #3
    and the hat of wrongness Salem's Avatar
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    > Please help me with following questions
    You tell us which answers you think are correct, then we'll tell you if you're on the right track.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

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