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C Language

the-c-programming-language.png

What is C?

  • C is a general-purpose programming language created by Dennis Ritchie at the Bell Laboratories in 1972.

  • It is a very popular language, despite being old.

  • C is strongly associated with UNIX, as it was developed to write the UNIX operating system.

Why Learn C?

  • It is one of the most popular programming language in the world.

  • If you know C, you will have no problem learning other popular programming languages such as Java, Python, C++, C#, etc, as the syntax is similar.

  • C is very fast, compared to other programming languages, like Java and Python.

  • C is very versatile; it can be used in both applications and technologies Difference between C and C++

  • C++ was developed as an extension of C, and both languages have almost the same syntax.

  • The main difference between C and C++ is that C++ support classes and objects, while C does not.

  • For more visit: C (programming language)

Get Started With C

To start using C, you need two things:

  • A text editor, like Notepad, to write C code.
  • A compiler, like GCC, to translate the C code into a language that the computer will understand. There are many text editors and compilers to choose from. In this tutorial, we will use an IDE (see below).

Install IDE

  • An IDE (Integrated Development Environment) is used to edit AND compile the code.

  • Popular IDE's include Code::Blocks, Eclipse, and Visual Studio. These are all free, and they can be used to both edit and debug C code.

  • Note: Web-based IDE's can work as well, but functionality is limited.

  • We will use vscode in our tutorial, which we believe is a good place to start.

  • You can find the latest version of vscode at https://code.visualstudio.com/download.

vscode

C Quickstart

Let's create our first C file.

Add hello world source code file

  • Open vscode
  • In the File Explorer title bar, select New File and name the file helloworld.c

new-file-button

  • Write the following C code and save the file as firstprogram.c (File > Save File as):

firstprogram.c

#include <stdio.h>

int main() {
  printf("Hello World!\n");
  return 0;
}
  • open terminal

toggle-termial

  • run this command
$ gcc helloworld.c -o a.out && ./a.out

output

Hello World!