Difference between Structure and Class in C++
In C++, the structure is the same as the class with some differences. Security is the most important thing for both structure and class. A structure is not safe because it could not hide its implementation details from the end-user, whereas a class is secure as it may hide its programming and design details. In this article, we are going to discuss the difference between a structure and class in C++. But before discussing the differences, we will know about the structure and class in C++.
What is the structure in C++?
A structure is a grouping of variables of various data types referenced by the same name. A structure declaration serves as a template for creating an instance of the structure.
The syntax of the structure is as follows:
The "struct" keyword indicates to the compiler that a structure has been declared. The "structurename" defines the name of the structure. Since the structure declaration is treated as a statement, so it is often ended by a semicolon.
What is Class in C++?
A class in C++ is similar to a C structure in that it consists of a list of data members and a set of operations performed on the class. In other words, a class is the building block of Object-Oriented programming. It is a user-defined object type with its own set of data members and member functions that can be accessed and used by creating a class instance. A C++ class is similar to an object's blueprint.
The structure and the class are syntactically similar. The syntax of class in C++ is as follows:
In this syntax, the class is a keyword to indicate the compiler that a class has been declared. OOP's main function is data hiding, which is achieved by having three access specifiers: "public", "private", and "safe". If no access specifier is specified in the class when declaring data members or member functions, they are all considered private by default.
The public access specifier allows others to access program functions or data. A member of that class may reach only the class's private members. During inheritance, the safe access specifier is used. If the access specifier is declared, it cannot be changed again in the program.
Main differences between the structure and class
Here, we are going to discuss the main differences between the structure and class. Some of them are as follows:
Head-to-head comparison between the structure and class
Here, we are going to discuss a head-to-head comparison between the structure and class. Some of them are as follows:
The following are similarities between the structure and class:
Structure in C has some limitations, such as the inability to hide data, the inability to treat 'struct' data as built-in types, and the lack of inheritance support. The C++ structure overcame these drawbacks.
The extended version of the structure in C++ is called a class. The programmer makes it easy to use the class to hold both the data and functions, whereas the structure only holds data.