nsplit.c #2

/*-*-mode:c-*-
***************************************************************************
                         CSN381: Project 1 (2:a)
             http://homepage.mac.com/hteric/Project1.pdf
***************************************************************************

         File : sumofodd.c
       Author : Jeremy Russell
         Date : September 5, 2002

  Description : 3. Write a program called 'nsplit.c' which prompts the user
                an integer between 1 and 32768 and print the 'splitted'
                form (add a space between each digits), eg. suppose you
                input 1234, you get 1 2 3 4

                Some requirements:

                a. Print a message like "Please input a number between 1
                and 32768:" when you prompt the users for a input.

                b. Check if the user has typped in a number (assume it is
                a positive integer to avoid more hassle) not in range and
                print out warning if the user did.

                c. After you print out the 'splitted' number, print out a
                message to ask users if they want to continue, your
                program has to repeat the above process again and if the
                user choose to continue .

***************************************************************************/
#include <stdio.h>

//Declare functions

int whichPowerOfTen ( int );

/***************************************************************************

     Function : main
       Author : Jeremy Russell
         Date : September 5, 2002

  Description : Split a given set of nummbers out from

    Arguments : void
      Returns : void
        Notes : None
     See Also : None

***************************************************************************/
int main ( void )
{
	int number, flag;
	int tmp, digit, size;
	char again;

	do
    {
        do 
        {
          flag  = 0;
            printf("Please input an integer: ");
            scanf("%d", &number);
                        
            if (( number < 0 ) || ( number > 32678 ))
            {
                printf ("The input is not valid.\n");
            }
            else 
            {
              flag++;
            }
        } while ( ! flag );

		// Find the power of ten whith which to start splitting.
  		size = whichPowerOfTen ( number );

		do
		{
			digit = number / size;
			number = number - (size * digit);
			size /= 10;
			printf("%d ", digit);
		} while (( number != 0) || (size));
        printf ( "\n" );

		printf ("Do you want to try again? (y/n): ");
	    scanf ("\n%c", &again);

	} while ( again != 'n' && again != 'N');

	return 0;
}


/***************************************************************************

     Function : whichPoerOfTen
       Author : Jeremy Russell
         Date : September 5, 2002

  Description : Find the power of ten to start with to split the integer.

    Arguments : number
      Returns : int
        Notes : None
     See Also : None

***************************************************************************/
int whichPowerOfTen ( int left )
{
	int tmp, size = 1;

	while (left != tmp)
	{
		size *= 10;
		tmp = left % size;
	}

	return size / 10;
}