/*
    ptrArith_4.c
    same as 3 but we condense the syntax to its minimal form via a while
    loop and eliminate the explicit '\0' assignment after the loop
*/

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

#define WORD_LENGTH 30

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

    strcpy(name, "Professor");

    while (*word_ptr++ = *name_ptr++);  /* THIS IS IT!!! */

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

    printf("My name is: %s\n", word);

    return 0;
}