C Environmental Setup

Page Index

C Overview

C Program Structure

C Basic Syntax

C Programming Blocks

C Printf and Scanf

C Data Type

C Variables

C Constant

C Keywords

C Operators

C Comments

C Identifier

C Literals

C Tokens

C Format Specifier

ASCII Value in C

C If Statement

C If Else Statement

C Nested If Statement

C Switch Case

C Nested Switch

C If Else vs Switch

C Loops

C For Loop

C While Loop

C Do While Loop

Nested Loop in C

Infinite Loop in C

C Break

C Continue

C goto

Typecasting in C

C Function Basic

Call By Value

Call By Reference

Recursion in C

Storage Classes

C Array Basics

1-D Array in C

2-D Array in C

Passing Array to Function

Return Array from a Function

Multi-Dimensional Array in C

Pointer to an Array in C

C Pointer

Pointer Arithmetic

Array of Pointers

C Pointer to Pointer

Passing Pointer to Function in C

Return Pointer From Function in C

Dangling Pointer in C

sizeof() Operators in C

Const Pointers in C

Void Pointer in C

C Deference Pointer

Null Pointer in C

C Function Pointer

C String Basics

C gets() and puts()

C String Function

C Structure Basics

typedef in C

C Bit Fields

C Array of Structure

C Nested Structure

Structure Padding in C

C Union

C File Handling Basics

C fprintf() fscanf()

C fputc() fgetc()

C fputs() fgets()

C fseek()

C rewind()

C ftell()

C Preprocessor Basics

C Macros

C #include

C #define

C #undef

C #ifdef()

C #ifndef()

How to Install C

Install c in Unix / Linux :

To setup C in Unix, you will need to follow these steps:

1. Install the C compiler: The C compiler is usually installed by default on Unix systems. However, if it is not installed on your system, you can install it using your system’s package manager. For example, on Ubuntu or Debian, you can use the following command to install the GCC compiler:

sudo apt-get install gcc

2. Write your C code: Once you have the C compiler installed, you can start writing your C code. You can use any text editor to write your code, such as Nano or Vim.

3. Save the C code: Save the C code with a .c extension. For example, if your code is named “hello”, you should save it as “hello.c”.

4. Compile the C code: Open your terminal and navigate to the directory where your C code is saved using the cd command. Then, run the following command to compile your C code:

gcc -o hello hello.c

This will compile your C code and generate an executable file named “hello”.

5. Run the executable: To run the executable file, type the following command in your terminal:

./hello

This will run your C code and output any results to your terminal.

Install C in MacOS:

To set up C in macOS, you will need to follow these steps:

Install Xcode: Xcode is a free development tool provided by Apple that includes the C compiler. You can download it from the Mac App Store or from the Apple Developer website.
Open Xcode: Once you have Xcode installed, open it and go to “Preferences” in the Xcode menu.
Install the Command Line Tools: In the “Preferences” window, go to the “Locations” tab and select the version of Xcode you have installed. Then, click the “Install” button next to “Command Line Tools”.
Write your C code: Once you have the C compiler installed, you can start writing your C code. You can use any text editor to write your code, such as TextEdit or Sublime Text.
Save the C code: Save the C code with a .c extension. For example, if your code is named “hello”, you should save it as “hello.c”.
Compile the C code: Open your terminal and navigate to the directory where your C code is saved using the cd command. Then, run the following command to compile your C code:

gcc -o hello hello.c

This will compile your C code and generate an executable file named “hello”.

7. Run the executable: To run the executable file, type the following command in your terminal:

./hello

This will run your C code and output any results to your terminal.

Install C in Windows:

To install C in Windows, you will need to follow these steps:

Download a C compiler: One popular C compiler for Windows is MinGW, which is a minimalist development environment for native Microsoft Windows applications. You can download MinGW from the official website.
Install the C compiler: Run the downloaded installer and follow the prompts to install the C compiler on your system. Be sure to select the “C Compiler” component during the installation process.
Set up the environment variables: After the installation is complete, you will need to set up the environment variables to be able to use the C compiler from the command line. To do this, follow these steps:

a. Open the Start menu and search for “Environment Variables”.

b. Click on “Edit the system environment variables” to open the System Properties window.

c. Click on the “Environment Variables” button at the bottom of the window.

d. Under “System variables”, click on “New” and enter the following information:

Variable name: PATH
Variable value: C:\\MinGW\\bin (or the path where you installed the C compiler)

e. Click “OK” to close all windows.

4. Write your C code: Once you have the C compiler installed, you can start writing your C code. You can use any text editor to write your code, such as Notepad or Visual Studio Code.

5. Save the C code: Save the C code with a .c extension. For example, if your code is named “hello”, you should save it as “hello.c”.

6. Compile the C code: Open your command prompt and navigate to the directory where your C code is saved using the cd command. Then, run the following command to compile your C code:

gcc -o hello hello.c

This will compile your C code and generate an executable file named “hello”.

7. Run the executable: To run the executable file, type the following command in your command prompt:

hello

This will run your C code and output any results to your command prompt.

List of C Programming IDE / GUI Software

There are several Integrated Development Environments (IDEs) available for C programming. Here are some popular ones:

Visual Studio Code: Visual Studio Code is a popular cross-platform IDE for C programming. It provides features like code completion, syntax highlighting, and debugging tools.
Code::Blocks: Code::Blocks is a free and open-source IDE for C programming. It provides a user-friendly interface, debugging tools, and support for multiple platforms.
Eclipse: Eclipse is a widely used IDE for C programming, which offers a comprehensive set of tools for coding, debugging, and testing C programs. It also supports multiple programming languages.
NetBeans: NetBeans is another popular IDE for C programming, which is widely used in industry. It offers a user-friendly interface, advanced debugging tools, and support for multiple programming languages.
Dev-C++: Dev-C++ is a free and open-source IDE for C programming. It comes with a user-friendly interface, syntax highlighting, and code completion features.
Xcode: Xcode is an IDE developed by Apple for macOS-based C programming. It provides a user-friendly interface, advanced debugging tools, and support for multiple programming languages.
CLion: CLion is a popular IDE for C and C++ programming, which offers advanced debugging tools, code analysis, and support for multiple platforms.
Sublime Text: Sublime Text is a text editor that provides support for C programming with the help of plugins. It offers a user-friendly interface and supports multiple programming languages.
Atom: Atom is another text editor that provides support for C programming with the help of plugins. It offers a user-friendly interface and supports multiple programming languages.
Geany: Geany is a lightweight IDE for C programming, which offers a user-friendly interface, syntax highlighting, and code completion features.

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