Legacy of C programming language

Now you C see it, now you don't. I'll let myself out.

Projection of encoded telegraphic messages, 1870 - by Jules Did
Projection of encoded telegraphic messages, 1870 - by Jules Did | Photo Josse/Leemage/GettyImages

As a member of the current generation, learning C and then C++ is a rite of passage we all must go through in our college years. It is something we all love to whine about but it is also something we love doing, because of the sheer openness and the treasure trove of knowledge it provides. Today, we celebrate and ask ourselves as to why is C still casting a shadow over our lives.

C is a system programming language. Initially designed for writing the UNIX OS, it has transcended its original directive and is now used for a wide variety of system programming, such as database management systems, compilers virtual machines, and much more.

Due to its fluid nature, C has stayed relevant throughout these years. Modern languages have strong type-checking and do not allow for experimentation. Even today, most C compilers do stronger type-checking, and warn of potential mistakes. However, these checks can be overridden and we can write type-unsafe code, allowing us to perform type-unsafe operations or tasks like writing device drivers.

C is so flexible in its syntax that it is possible to write obfuscated code in it. There has been a yearly contest since the 1980s for the same as well.

Unlike other programming languages, C requires no specific runtime. Routines are executed and tasks are performed, but when a C program is run, the task is directly executed and performed.

C’s syntax and semantics are often considered a low-level programming language. Thus, beginners can easily pick up and learn the language as well.

One of C's defining features has been its portability or the ability to use it on multiple machines. Cross-platforming was a thing C did much before modern video games came into the picture.

C comes with a comprehensive standard library that provides functions for performing a wide range of tasks, from input/output operations to string manipulation and mathematical computations.

C supports modular programming through the use of functions, allowing developers to break down complex programs into manageable components. This modularity facilitates code reuse and improves maintainability.

Relevance:

Many modern programming languages, including C++, Java, and Python, have their roots in C. Understanding C provides a solid foundation for learning these languages, as many of their constructs and syntax are derived from C.

C is widely taught in computer science and engineering programs due to its fundamental nature and the insight it provides into how computers operate. Learning C helps students grasp key programming concepts and develop problem-solving skills.

Operating systems like Windows, Linux, and macOS, as well as many embedded systems, are predominantly written in C. The language’s ability to interact closely with hardware and its minimalistic runtime make it ideal for these applications.

Ben Franklin famously once said that the only things that are permanent are life, death, and taxes. I think we can add C to that list as well now, for it is a creature of the eternal night.

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