9. Header Files of C Programming

Header Files of C programming :

A header file is a file which is generally available in the include directory in the C language . It is an ASCII (American standard code for information interchange) type file . C language uses several header files , each of which contains declaration that are functionally related. For example, <math.h> header file contains declaration for mathematical function. The header files also contained the information about library functions. Some important header files are <stdio.h> Standard input output header, <conio.h> Console input output header, <math.h> Mathematical header, <string.h> String manipulation header, <stdlib.h> Standard library of utility functions header, <ctype.h> Character type testing and conversion header , etc .

Header files and related Libray functions in C programming
Header files and related Libray functions in C programming

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