Introduction To Library Functions in C

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.

 

Header File Functions

stdio.h – This is a Standard i/o header file in where Input/output functions are declared

conio.h - This is a Console based input/output header file.

string.h – This is a String related functions are in this header file.

stdlib.h - This file contains standard library functions which are used in the C programs.

math.h - This is a Maths related functions are in this header file.

time.h - This file only contains time and clock related 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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