Friend Function in C++

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Friend Function in C++ Welcome to C++ Programming. In this article, we will talk about friend Function and friend Class trying to understand what do they mean and why are they useful in C++ design process. These will be the module outline we will take examples of Matrix Vector Multiplication and Linked List, and finally will end with somenotes. As you know as usual the outline will be available on the left of your slide So, let us first introduce the basic notion of friend function. On the left you have the view of ordinary function. So the situation is like this, that I have a class myclass which as some private data, it has a constructor, and it has; I am sorry if just ignore this line. I have this function written outside of this class which is trying to do something with the class. What is it doing? It takes an object of the class by reference parameter call by reference, and then it tries to print the data element component of that objective. Now, what do we know, this is pr...
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How To Use Class and Object In C++

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Class and Object In C++

                            In C++ the concept of classes and objects is very useful.Now lets see how to use it and what is the syntax.Simply the class is written same as its name like class before the main method.Class with brackets like class{}.

                            Now lets take a look to object it is a logical thing.If you have class A and we want to create its object.We will do in main method A object; The A refers to class A and object refers to the object of class A.

                            Now lets create a function in class A.We have class A{} inside the brackets we will write public: just ignore what is this just write it for now after that in next line write void show(){ cout<<"Member function"<<endl;} Now we have create a function in a class.

                             Now we will call this function in main function with the object of class.After the A object in main just in next line write object.show(); Now run the program and you will see the output.


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class and object
                    
                            

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Friend Function in C++

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Image
Friend Function in C++ Welcome to C++ Programming. In this article, we will talk about friend Function and friend Class trying to understand what do they mean and why are they useful in C++ design process. These will be the module outline we will take examples of Matrix Vector Multiplication and Linked List, and finally will end with somenotes. As you know as usual the outline will be available on the left of your slide So, let us first introduce the basic notion of friend function. On the left you have the view of ordinary function. So the situation is like this, that I have a class myclass which as some private data, it has a constructor, and it has; I am sorry if just ignore this line. I have this function written outside of this class which is trying to do something with the class. What is it doing? It takes an object of the class by reference parameter call by reference, and then it tries to print the data element component of that objective. Now, what do we know, this is pr...
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