What is friend function? C++

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As the name suggests, the function acts as a friend to a class. As a friend of a class, it can access its private and protected members. A friend function is not a member of the class. But it must be listed in the class definition.

2012-02-21, 2840👍, 0💬

What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator.
What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator. An internal iterator is implemented with member functions of the class that has items to step through. .An external iterator is implemented as a separate class that can be "at... 2012-02-23, 2776👍, 0💬

What are virtual functions? C++
What are virtual functions? C++ A virtual function allows derived classes to replace the implementation provided by the base class. The compiler makes sure the replacement is always called whenever the object in question is actually of the derived class, even if the object is accessed by a base poin... 2012-02-22, 2771👍, 0💬

What are 2 ways of exporting a function from a DLL?
What are 2 ways of exporting a function from a DLL? 1.Taking a reference to the function from the DLL instance. 2. Using the DLL ’s Type Library 2012-02-17, 2762👍, 0💬

What is abstraction? C++
What is abstraction? C++ Abstraction is of the process of hiding unwanted details from the user. 2012-02-22, 2740👍, 0💬

Which recursive sorting technique always makes recursive calls to sort subarrays that are about half size of the original array?
Which recursive sorting technique always makes recursive calls to sort subarrays that are about half size of the original array? Mergesort always makes recursive calls to sort subarrays that are about half size of the original array, resulting in O(n log n) time. 2012-02-21, 2739👍, 0💬

What is a class? C++
What is a class? C++ Class is a user-defined data type in C++. It can be created to solve a particular kind of problem. After creation the user need not know the specifics of the working of a class. 2012-02-20, 2724👍, 0💬

What is the difference between an object and a class?
What is the difference between an object and a class? Classes and objects are separate but related concepts. Every object belongs to a class and every class contains one or more related objects. - A Class is static. All of the attributes of a class are fixed before, during, and after the execution o... 2012-02-17, 2715👍, 0💬

Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through
Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through data [321]. quicksort ((data + 222), 100); 2012-02-20, 2693👍, 0💬

What do you mean by binding of data and functions?
What do you mean by binding of data and functions? Encapsulation. 2012-02-16, 2690👍, 0💬

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