FT>        pB = strB;           /* point pB at string B */

 FT>        while(*pA != '\0')   /* line A (see text) */
 FT>        {
 FT>          *pB++ = *pA++;     /* line B (see text) */
              ^^^^^
 FT>        }

Notice how we're moving pB to the next value each time through this while loop.

 FT>  What I have a hard time figuring out is the reason
 FT>  why I can't replace (strB) with (pB) in the
 FT>  following line since pB points at string B:

 FT>        puts(strB);          /* show strB on screen */

When the loop is done, pB no longer points at strB, but at the
"end" of strB!

 FT>  If I re-point at strB:
 FT>        pB = strB;           /* point pB at string B */
 FT>  just above:
 FT>        puts(pB);            /* show what pB is pointing to */
 FT>  then the string is printed out!!!

Right - you changed where pB is pointing at, moving back to where it
started before the loop.

 FT>  Why do I have to point to string B a second time?  Once
 FT>  a pointer points to a specific address, doesn't it
 FT>  reflect whatever value is stored at this address as
 FT>  long as types match?

True - but if you try printing out where the pointer is pointing at, you'll
notice it change.

 FT>  #include 
 FT>  char strA[80] = "A string to be used for demonstration purposes";
 FT>  char strB[80];

 FT>  int main(void)
 FT>  {
 FT>        char *pA;            /* a pointer to type character */
 FT>        char *pB;            /* another pointer to type character */
 FT>        puts(strA);          /* show string A */
 FT>        pA = strA;           /* point pA at string A */
 FT>        puts(pA);            /* show what pA is pointing to */
 FT>        pB = strB;           /* point pB at string B */
 FT>        putchar('\n');       /* move down one line on the screen */

printf("pB is now at %p\n", (void*)pB);
printf("Coincidentally, strB is also at %p\n", (void*)strB);

 FT>        while(*pA != '\0')   /* line A (see text) */
 FT>        {
 FT>          *pB++ = *pA++;     /* line B (see text) */
 FT>        }

printf("After while loop, pB is at %p\n", (void*)pB);
printf("This is a difference of %d\n", pB - strB);
printf("Coincidentally, the string below's length is %d!\n\n",
strlen(strB));

 FT>        *pB = '\0';          /* line C (see text) */
 FT>        puts(strB);          /* show strB on screen */
 FT>        return 0;
 FT>  }

Hope this helps!


---