It is usually used with operator overloading operation. In this Page, we will discuss two following concept, 1. a Friend function can friend more than one class. main. For example, if you provided a public getSecret in MyClass, everyone could have access to that private variable even if they shouldn't know about it.This breaks encapsulation. 1 branch 0 tags. We use the keyword friend to declare friend class. You would typically write a friend function in order to work with a class object as the second argument: a constructor foo::foo ( const . I think this only works one way (the containing class can use the contained class) but that is probably OK. What is the equivalent of EXCEPT in MySQL? 2. As mentioned previously, there are two ways to implement a friend function in C++: friend class Exmp_B; // Friend Class, cout<<"The private member's value accessed using friend class is: " << i.A_value<
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