What is overriding vs overloading?

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What is differance between Abstract and Interface

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What do we mean by a hidden argument in C++?

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Question In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Question Submitted By :: Sunil Kumar I also faced this Question!! Rank Answer Posted By Re: In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Answer # 1 use copy constructors 0 Shanthila There is something to be taken care in destructor, in copy constructor, suppose the memory is assigned to the embedded member object pointer with the parameter passed value, but if some other objects of different class also are pointing to this memory, then if some one deletes the object then this class member pointer object will become dangling, or if the object is not deleted properly then there will be memory leak. Please suggest the design change required to handle or avoid this situation

0 Answers   TCS,

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suppose A is a base class and B is the derved class. Both have a method foo which is defined as a virtual method in the base class. You have a pointer of classs B and you typecast it to A. Now when you call pointer->foo, which method gets called? The next part of the question is, how does the compiler know which method to call?

3 Answers   EA Electronic Arts,

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A file pointer always contains the __________ of the file

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What are the components of marker interface?

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How does polymorphism work?

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What is object and example?

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Out of 4 concepts, which 3 C++ Follow?

1 Answers   TCS,

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What is memory leak and memory corruption?

1 Answers   TCS,

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if i have same function with same number of argument but defined in different files. Now i am adding these two files in a third file and calling this function . which will get called and wht decide the precedence?

1 Answers  

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