C Primer Plus, Fourth Edition

Chapter 10

1:	What will this program print? #include <stdio.h> int main(void) { int ref[] = {8, 4, 0, 2}; int *ptr; int index; for (index = 0, ptr = ref; index < 4; index++, ptr++) printf("%d %d\n", ref[index], *ptr); return 0; }
A1:	The printout is this: 8 8 4 4 0 0 2 2
2:	In question 1, how many elements does ref have?
A2:	The array ref has 4 elements because that is the number of values in the initialization list.
3:	In question 1, ref is the address of what? What about ref + 1? What does ++ref point to?
A3:	The array name ref points to the first element of the array, the integer 8. The expression ref + 1 points to the second element, the integer 4. The construction ++ref is not a valid C expression; ref is a constant, not a variable.
4:	What ...