/* ASCII to Binary Converter (15pt)

Write a complete C program that takes a character array and 
prints its letters in binary format on the screen.

You can assume that the character array is hardcoded in the program.
In other words, you don't have to read it from the keyboard.
The following will suffice:  
	
	//char text[] = "Secret Message";
	char text[] = "Halloween";	

To test the program you can keep several text messages (commented out)
and uncomment only one for testing.

The program must automatically figure out the length of the message
by scanning the array until it finds a character with an 
ASCII value of 0 (i.e., the standard string termination character '\0').

Each letter of the message must be printed on a single line 
as an 8-bit binary number that corresponds to the ASCII code 
of the letter (see the sample runs below).

The program must define and call a function that does 
the ASCII to binary conversion for each letter and also prints the letter.
The termination character should not be printed as part of the message.
	
Sample Run #1:
	
Halloween
01001000
01100001
01101100
01101100
01101111
01110111
01100101
01100101
01101110

Sample Run #2:

Secret Message
01010011
01100101
01100011
01110010
01100101
01110100
00100000
01001101
01100101
01110011
01110011
01100001
01100111
01100101

*/


#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define DEBUG 0 

void printBinary(char c)
{
	int b[8] = {0, 0, 0, 0, 0, 0, 0, 0};  // store the binary number here
	int n = c;  // convert the char to int and work with n from now on
	
	if(DEBUG)  printf("%3d: ", c);
	
	int i=0;
	while (n != 0)    // convert to binary
	{
		b[i++] = n%2;
		n/=2;
	}
	
	for(i=7; i>=0; i--)   // print the 8-bit binary number
		printf("%d", b[i]);	
}

int main()
{
	int i;
	//char text[] = "Secret Message";
	//char text[] = "Halloween";
	//char text[] = "Cat";
	char text[] = "Hello";
	
	for(i=0; text[i] != '\0'; i++)
		printf("%c", text[i]);
	printf("\n");
		
	for(i=0; text[i]!= '\0'; i++)  // print the encoded message
	{
		printBinary(text[i]);
		printf("\n");
	}	

	printf("\n");
	system("pause");
}