C++ Questions

There are three types of constructor in C++. They are Default constructor, Parameterized constructor, Copy constructor.

The function declaration should be preceded by the keyword friend.The function definitions does not use either the keyword or the scope operator :: The functions that are declared with the keyword friend as friend function.Thus, a friend function is an ordinary function or a member of another class.

If an error occurs in program, then only exception object is created otherwise, It will not be created. So it’s expensive to use in the program.

Scope resolution operator allows a program to reference an identifier in the global scope that is hidden by another identifier with the same name in the local scope.

A heap is a way to organize the elements of a range that allows for fast retrieval of the element.

Allocaters are implemented in C++ standard library but it is used for C++ template library.

ll the above listed methods are used in storing sequential files