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Arrays and Pointers

An alternative approach to iteration through an array:
  • determine the address of the first element in the array
  • determine the address of the last element in the array
  • set a pointer variable to refer to the first element
  • use pointer arithmetic to move from element to element
  • terminate loop when address exceeds that of last element
Example: 

int *p;
int a[6];
for (p = &a[0]; p < &a[6]; p++) {
	printf("%2d ", *p);
}