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- February 4, 2019 at 10:29 am #52987
Friend function goes about as a friend of the class. It can get to the private and protected members from the class. The friend function isn’t a member from the class, however, it must be recorded in the class definition.
The non-member function can’t get to the private data of the class. At times, it is essential for the non-member function to get to the data.
The friend function is a non-member function and can get to the private data of the class.
Following are the qualities of a friend function:
1) The friend function isn’t to the extent of the class in which it has been declared.
2) Since it isn’t to the extent of the class, so it can’t be called by utilizing the object of the class. Consequently, friend function can be invoked like a normal function.
3) A friend function can’t get to the private members directly, it needs to utilize an object name and dot operator with every member name.
4) Friend function utilizes objects as contentions.
Let’s understand this through an example:
using namespace std;
friend int add(Addition x)
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