Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A: They present a degree of freedom in the interface design options.
Member functions & friend functions are equally privileged (100% vested). The major difference is that a friend function is called such as f(x), whereas a member function is called like x.f(). Therefore the ability to select between member functions (x.f()) and friend functions (f(x)) let a designer to choose the syntax that is deemed most readable, which lowers maintenance costs.
The major disadvantage of friend functions is that they need an extra line of code while you wished dynamic binding. In order to get the effect of a virtual friend, the friend function must call a hidden (usually protected) virtual member function. It is called the Virtual Friend Function Idiom. For instance:
class Base {
public:
friend void f(Base& b);
... protected:
virtual void do_f();
...
};
inline void f(Base& b)
{
b.do_f();
}
class Derived : public Base {
virtual void do_f(); // "Override" the behavior of f(Base& b)
void userCode(Base& b)
f(b);
In userCode(Base&) , the statement f(b) will invoke b.do_f(), that is virtual. It means that Derived::do_f() will get control actually if b is a object of class Derived. Note down that Derived overrides behavior of the protected virtual member function do_f(); this does not have its own variation of the friend function, f(Base&).
how can i print any english work using star .?
A PROGRAM TO CALCULATE AREA OF TRIANGLE
What are the legal requirements with which websites must comply in order to meet the needs of persons with disabilities? Why is maximizing accessibility important to everyone?
Addition of array elements: #define rows 3 #define cols 3 void main() { int i=0,j=0,sum=0; int arr[rows][cols];
Hi there I am looking for help with c++ coursework. Could you please provide me with email address to email a copy of it. Thanks
Question 1 Write a program that accepts a 3x3 matrix from the user and finds the transpose of it Question 2 Explain Brief about class and objects. Also describe friend functi
P o i n t er s to Members: In C a pointer is created to locate the address of another variable for faster access. Consider the following example. int x, *p; p =
What is the difference between early binding and late binding? What are advantages of early binding? a.) Late binding refers to function calls which aren't resolved until run t
Write a program called A1Q3, that reads it the radius of a circle as an integer and prints the circle's diameter, circumference and area. Use a constant value for pi. Do all calc
1) Factorial (for this question just provide an answer for each part) 1.1 Debug the following program to calculate N! #include using namespace std; main()
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd