atoi() string to number conversion

atoi() function:           atoi() function converts a string of digits into an integer value.  The general format of the atoi() function is:

                        

Syntax:           int atoi(string);

            Function accepts a string as an argument and returns the result value as an integer.

#include<stdio.h>

#include<stdlib.h>

main ()

{

int i;

char buffer [256];

printf ("Enter a number: ");

fgets (buffer, 256, stdin);

i = atoi (buffer);

printf ("The value entered is %d.",i);

}