/*
 * Looking at ways to access lists in C:
 *  pointers, addresses, and all that.
 *
 */ 

#include <stdio.h>

#define NMAX 2000

// file global variable
int list[NMAX];

void print_array(int array[], int n){
  int i;
  printf("[");
  for (i=0; i<n; i++){
    printf("%i, ", array[i]);
  }
  printf("]\n");
}

int main(){
  int i;

  // initialize array to 0, 1, 2, ...
  for (i=0; i<NMAX; i++){
    list[i] = i;
  }

  // show some sizes and addresses
  printf(" sizeof(int) = %lu \n", sizeof(int));    // %lu = long unsigned
  printf(" 'list'     address = %p \n", list);     // %p = pointer type
  for (i=0; i<4; i++){
    printf(" '&list[%i]' address = %p \n", i, &list[i]); // & = 'take address'
  }

  printf(" print_array(list, 5) : ");
  print_array(list, 5);

  printf(" print_array(&list[10], 5) : ");
  print_array(&list[10], 5);

  return 0;
}