Wednesday, 17 May 2023

Explain Basic Structure of C Programing

C is a high level language and structured programming language that was originally developed by Dennis M. Ritchie to develop the UNIX operating system at Bell Labs. C programming language features were derived from an earlier language called “B” (Basic Combined Programming Language – BCPL). C is very popular because of Reliability, Portability, Flexibility, Interactivity, and Modularity. C is a middle level programming language. Main feature of C is we can divide programme into the smaller modules which increases efficiency of programme.



Section

Description

Documentation

It consists of a description of the program, the name of the programmer, and the date of creation.

These are usually written in the form of comments.

Link

All header files are included in this section and contain various functions of the library.

Copies of these header files are included in your code before compilation.

Definition

Contains preprocessor directives with symbolic constants.

For example: #define allows you to use constants in your code. Replace all constants with their values ​​in your code.

Global Declaration

Includes global variables, function declarations, static global variables and function declarations.

Main() Function

Whenever you Execute of any C program it always begins with the main() function.

It is mandatory to have a main() function in every C program.

Subprograms

Contains all custom functions (functions provided by the user). These can include built-in functions and function definitions declared in the global declarations section. These are called main() functions.

C contains following topics at TCCI

Introduction to C, Basic Syntax, Token, Data Types and Variables, Constants, Literals, Storage class, Operators, Loop Controls, For Loop, While Loop, Do-While Loop, Decision Making, Arrays, String, Function, Pointer, Structure, Union, Type Casting, Recursion, Files, Command Line Argument.

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