C language printf() function: a function that produces formatted output

Function name : printf

Header file : <stdio.h>

Function prototype: int printf(char *format...);

Function : Function that generates formatted output

Parameters : char *format... format to be output

Return value : The total number of characters written is returned on success, and a negative number is returned on failure.

Program example : Output the number 10 in decimal, octal, hexadecimal and different lengths

 #include<stdio.h>#include<string.h>#defineI555#defineR5.5intmain(void){inta=10;printf(%d,%o,%xn,a,a,a);printf( %5dn,a);return0;}

Running results

 10,12,a10