User:Haiderali78678/sandbox

C PROGRAMMING

Developer:c programming was developed by DENNIS RITCHIE in 1978 at AT&T bell labs. C programming was developed after b programming but b programming was not given value because of the drawbacks.But c programming was very popular due to its design and well developed assembly language. The basic syntax for starting a C program is- syntax:- #include            { printf("Hello World"); }

Header files:-Every program in c contains a header file in it.Header file is file which has "built in function" which user can use in its program.There are many types of header files in C programming. These header files contain different types of functions.
 * 1)  stdio.h:-This header file is used for input and output functions in program.
 * 2)  math.h:- This header file is used for operating maths fucntions EX:-calculating squareroot of a number.
 * 3)  stdlib.h:- This header file is for "dynamic memory allocation" which is used in file managing function.
 * 4)  time.h:- This is header file is used for management of time in c program.
 * 5)  stdard.h:- It allows user to enter indefinite number of arguments in a program.
 * 6)  ctype.h:-This header file helps user to use special character in a program.
 * 7)  string.h:-This is used for operating string handling functions in c program.