C++ is a very popular programming language. Every C++ program has a general structure that it must follow. Here is common structure of a C++ program. Header Section The header section is used for Including header files Declaring global variables Declaring functions Defining constants You can divide C++ functions into two categories – Builtin functions … Read more
You have learnt about member functions earlier. We now expand the idea and talk about private member function and nesting of function in C++. A function declared inside the class’s private section is known as the “private member function”. A private member function is accessible through the only public member function. Data Members Data members … Read more
An object can be passed to a function just like we pass a structure to a function. we can pass the object of another class to a function of a different class. We can pass class objects as arguments and return them from a function. When we want to initialize all data members of an … Read more
What is a file pointer? A pointer is used to handle and keep track of the files being accessed. Every file maintains two pointers called get_pointer (in input mode file) and put_pointer (in output mode file), which tells the current position where reading or writing will take place with the use of opening modes and … Read more
File streams are the libraries which are utilized in programming. These use the iostream preferred standard library because it offers cin and cout strategies which are used for analyzing from the input and writing to the output respectively. A file is a collection of associated data stored in a particular area on a disk. The … Read more
In this article, you are going to learn about an important concept in C++ called the virtual functions and pure virtual functions. However, it is recommended that you learn about basics of pointer, classes and derived classes before reading further. What is Virtual Function? A virtual function is a special type of member function that … Read more
We know that pointers are used for an object of derived classes, we can also use them for the base objects. The pointer to the base class object is type-compatible (can be used in two ways) with a pointer to the object of the derived class. To access the variable of the base class, a … Read more
To understand the topic of pointers to objects, we need to know what is an object , pointer and class. A class is defined in C++ using keyword class followed by the name of class. The body of class is defined inside the curly brackets and terminated by a semicolon at the end. What is … Read more
Understanding c preprocessor includes the source code which is written by programmers is stored in the file “program.c”. The file that is stored then processed by preprocessors and an expanded source code file is generated as named program. This expanded file is compiled by the compiler and an object code file is generated as named … Read more
C++ language allows you to create a new type of variable called reference variable. What Is A Reference Variable ? A variable that store values is called a value variable. The C++ reference variable is an alias for a value variable. It refers to the memory location of the value variable like pointer. Any changes … Read more
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