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C++ is a high-level object-oriented programming language that enables programmers to create lightweight, portable applications. The Standard Template Library (STL) in C++ provides extensive library support (STL).

Features of the C++ Language

C++ has a number of interesting features, including:

  • Object-oriented: C++ is a programming language that focuses on objects. This means that the focus is on "things" and the manipulations that occur around them. The user of the item is stripped of information on how these manipulations operate.
  • Support for a large library: Many functions are available via the C++ Standard Template Library (STL), which aid in the rapid writing of code. For example, standard libraries exist for various containers such assets, maps, hash tables, and so on.
  • When latency is a vital metric, C++ is the preferred alternative. A C++ program's compilation and execution times are significantly faster than those of most other general-purpose programming languages.
  • Unlike interpreted programming languages, which do not need compilation, C++ code must first be compiled into low-level code before being executed.
  • Pointer Support: C++ also supports pointers, which are commonly found in programming but aren't often present in other languages.


C/C++ is one of the most popular programming languages since it is used in nearly all of the programs and systems you use. C++ is present in almost every program that we use, whether it's Windows, photo editing apps, your favorite game, or your web browser.


C++ Language Uses/Applications

Let's take a look at some fascinating places where C++ is commonly used after we've explored C++ functionality.

Operating Systems

All operating systems, including Microsoft Windows, Mac OS X, and Linux, are written in C++. Since it is a strongly typed and fast programming language, C/C++ is the cornerstone of all well-known operating systems. This makes it an excellent option for designing an operating system. Furthermore, C is very similar to assembly, which aids in the development of low-level operating system modules.


C++ is used to program the rendering engines of various web browsers simply because of its speed. To ensure that users do not have to wait for content to appear on the screen, rendering engines must execute faster. As a consequence, the programming language for such low-latency systems is C++.


C++ is the primary programming language of many high-level libraries. Because of its speed, C++ is used in the backend of many Machine Learning libraries. The backend programming language for Tensorflow, one of the most commonly used Machine Learning libraries, is C++. Since they involve multiplications of large matrices for the purpose of training Machine Learning models, such libraries necessitated high-performance computations. As a consequence, success becomes extremely important. In such libraries, C++ comes to the rescue.


All graphics applications necessitate fast rendering, and C++, like web browsers, aids in the reduction of latency. C++ is the backend programming language for software that uses computer vision, digital image processing, and high-end graphical processing. C++ is used as the primary programming language in even the most common games with a lot of graphics. The pace that C++ provides in these circumstances allows developers to reach a wider audience since an optimized program can run on low-end devices with limited computing capacity.

Banking Applications

Infosys Finacle, one of the most widely used core banking systems, uses C++ as one of the backend programming languages. On a regular basis, banking applications process millions of transactions, requiring high concurrency and low latency support. Because of the pace and multithreading support provided by the numerous Standard Template Libraries that come as part of the C++ programming package, C++ immediately becomes the preferred option in such applications.

Cloud/Distributed Systems

C++ is also used by large companies developing cloud storage services and other distributed systems because it integrates well with hardware and is compatible with a wide range of machines. Scalable file systems that operate similar to the hardware are used in cloud storage systems. In such cases, C++ becomes the chosen language because it is similar to the hardware and because its multithreading libraries have high concurrency and load tolerance, which is critical in such scenarios.


C++ and C, the predecessor to C++, are used to write Postgres and MySQL, two of the most widely used databases. These databases are used in almost every well-known application that we all use on a daily basis - Quora, YouTube, and so on.

Embedded Systems

Since C++ is closer to the hardware level than other high-level programming languages, it is used as the primary programming language in a variety of embedded systems such as medical machines, smartwatches, and so on.

Telephone Switches

C++ is commonly used in programming telephone switches, routers, and space probes since it is one of the fastest programming languages.


C and C++ are the backend programming languages used by compilers for different programming languages. This is due to the fact that C and C++ are lower-level languages that are closer to the hardware and therefore make suitable candidates for such compilation systems. There are some of the C++ programming language's uses and implementations. Let's look at the advantages of C++ over other programming languages.


Advantages of C++ Language

C++ has the following two characteristics that make it a popular option in most applications:

  • C++ is a faster programming language than most others, and it has excellent concurrency support. This makes it useful in situations where efficiency is crucial and latency is needed to be kept to a minimum. Such demands are common in high-load servers like web servers, application servers, database servers, and so on. C++ is used extensively in such servers.
  • C++ is more closely related to hardware than most other programming languages, such as Python. This makes it useful in situations where software is tightly coupled with hardware and low-level software support is needed.