The introduction to C++ topic covers everything from its origin to basic features. C++ and C programming languages were developed in the same laboratory called Bell Labs. While C was invented in 1972, C++ was created in 1979. The fundamental concepts of C++ feature C programming, with an addition of object-oriented programming concepts and other functionalities. C++ exhibits low-level and high-level programming properties, enabling it to exhibit powerfulness and versatility.
Introduction to C++:
Due to its unique features, C++ programming evolved as a popular language with extensive use across various applications, particularly in developing specific high-performing programming, including gaming software, system programming, and applications that necessitate control over system resources.
With such broad functionalities, learning C++ will add an advantage to learners as it widens the scope of developing a wide range of projects. First, learners can concentrate on developing small projects initially, and in the later stage get accustomed to advanced topics in C++, such as multithreading, exception handling, and templates.
Introduction to C++ Programming: Some Salient Features:
I) Supports OOPs Programming:
Due to the inclusion of classes and objects, C++ supports designing real-world objects.
In any object-oriented programming language, the four basic elements include encapsulation, inheritance, polymorphism, and abstraction. Similarly, as in other object-oriented programming languages, C++ supports these four features.
What are the Foundational Concepts of Object-Oriented Programming?
Encapsulation
The process of bundling data and methods into one unit in the form of a class is known as encapsulation. It enables the safeguarding of sensitive data while restricting access to unwanted users.
Inheritance
Through inheritance, the existing classes allow them to share their behaviors and properties with new classes and to inherit them. The advantage is that it reduces the burden for programmers to write extensive code, as existing code is reusable.
Polymorphism
A function or an object can represent in different forms to exhibit various behaviors.
Abstraction
The process of hiding complex details and showcasing only important and necessary features is possible in software through abstraction.
II) Low-Level Manipulation:
Like C programming, C++ features pointers that allow direct memory access, enhance efficiency, minimize code size, and many more. Moreover, pointer manipulation in C++ allows gain control over computer memory and hardware.
III) Memory Management
The resource allocation and deallocation processes are easier, and programmers can perform those functions by manual memory management. By using options such as new and delete, it is possible to manage the memory manually.
IV) Compatibility of C++ with C
It is known that C++ is an extension of the C programming language. Hence, C++ shows compatibility with C in many aspects while exhibiting incompatibility in a few instances. As a result, a C program can run in a C++ compiler without any modifications.
V) Multi-Paradigm Language
C++ is known as a multi-paradigm language as it supports the implementation of multiple programming styles, including simple procedural programming to complex object-oriented programming and generic programming.
VI) Standard Template Library (STL):
C++ features a software library known as standard template library (STL), which contains four kinds of pre-written data, including iterators, functions, containers, and algorithms. With such features, the programs in C++ are robust and reusable. Moreover, it also manipulates objects and stores data easily.
VII) Exhibits Higher Performance:
With the featuring of advanced capabilities, C++ ensures higher performance. Making it a suitable program for use across high-performing applications that demand faster execution. Examples include embedded software, real-time systems, and game engines.
A Brief Description of Syntax and Structure of C++
Although C++ shows much similarity with C programming, there are certain powerful features such as objects, classes, and templates.
Explanation of the Syntax:
In introduction to C++, let’s discuss about some important syntax.
The inclusion of #include<iostream> enables the C++ program to inherit certain pre-defined libraries that are important to perform specific operations without writing the code. For instance, just by including “count,” the programmer can print the output in the console. The function for “count” is already included in the library.
Int main():
As soon as the programmer includes int main(), the program identifies it as the starting point for a C++ program.
Control Structures:
Similar to other languages, C++ features statements such as switch, for loops, while, and if-else in its programming concepts.
Functions:
Functions play an important role in organizing code into reusable programming blocks. With C++ exhibiting advanced programming functionalities, it supports both user-defined and built-in functions.
Variables and Data Types:
In addition to the basic data types such as int, double, float, bool, char, and others, certain customized data types like struct and class is available in C++ programming.
