/* 	DEMO4
	same as 3 but we condense the syntax to it's minimal form via a while
	loop and eliminate the explicit NULL assignment after the loop
*/

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

int main()
{
   char word[10];
   char *name = malloc( 10 * sizeof(char) );
   char *word_ptr=word, *name_ptr=name; /* the start of each string */

   strcpy( name, "timothy" );

   while (  (*word_ptr++ = *name_ptr++) );

   /* Question: Why don't we need to copy a null onto the end after the loop finishes?
      Answer:   Because the asignment must complete from right to left
                and then the value on left is evaluted to be true or false
                by the if statement
   */

   printf("my name is: %s\n", word );
   free( name );
   return 0;
}