Difference Between Shallow Copy and Deep Copy in C++ | C++ Interview Questions and answers

difference between shallow copy and deep copy in c++
The pointer will be copied. but the memory it points to will not be copied -- the field in both the original object and the copy will then point to the same dynamically allocated memory, which is not usually what you want.

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[ilakkiyameenu]

difference between shallow copy and deep copy in c++
The pointer will be copied. but the memory it points to will not be copied -- the field in both the original object and the copy will then point to the same dynamically allocated memory, which is not usually what you want.

[lavanyaumapathy]

If an object has pointers to dynamically allocated memory, and the dynamically allocated memory needs to be copied when the original object is copied, then a deep copy is required. A class that requires deep copies generally needs: A constructor to either make an initial allocation or set the pointer to NULL.

[lavanyaumapathy]

The copy constructor is used to initialize the new object with the previously created object of the same class. ... An object copy is a process where a data object has its attributes copied to another object of the same data type. In .Net Shallow copy and deep copy are used for copying data between objects.

[kalieswaran]

One of the very important part writing class in C++ is to implement copy constructor and overloaded = operator function. ... Copy Constructor: It is called when and object is initialized at the time of creation. ... Default copy constructor and =operator function which is inserted by ...

[hemamalinig]

Shallow copies duplicate as little as possible. A shallow copy of a collection is a copy of the collection structure, not the elements. With a shallow copy, two collections now share the individual elements.

[agilan]

C++ is a general-purpose programming language. It has imperative, object-oriented and generic programming features

[hemamalinig]

Deep copies duplicate everything. A deep copy of a collection is two collections with all of the elements in the original collection
duplicated.