// mem.C -- illustrate memory addresses, layout of C++ program

#include <iostream.h>
#include <iomanip.h>

double pi = 3.14;

void fun1(int, int, int, int, int, int, int, int, int, int);
void fun2(int);
void fun3(int);

int main()
{
  int a, b, c[257], *p = new int;
  
  cout << "starting main()\n";
  cout << hex;
  cout << "  address of pi          " << setw(8) << &pi << endl;
  cout << "  address of a           " << setw(8) << &a << endl;
  cout << "  address of b           " << setw(8) << &b << endl;
  cout << "  address of c[0]        " << setw(8) << &c[0] << endl;
  cout << "  address of c[256]      " << setw(8) << &c[256] << endl;
  cout << "  address of pointer p   " << setw(8) << &p << endl;
  cout << "  address value in p     " << setw(8) << p << endl;
  cout << "  address of fun1        " << setw(8) << (unsigned) fun1 << endl;
  cout << "  address of fun2        " << setw(8) << (unsigned) fun2 << endl;
  cout << "  address of fun3        " << setw(8) << (unsigned) fun3 << endl;

  fun1(1,2,3,4,5,6,7,8,9,10);
  return 0;
}

void fun1(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j)
{
  int *p = new int;

  cout << "starting fun1()\n";
  cout << "  address of param a     " << setw(8) << &a << endl;
  cout << "  address of param j     " << setw(8) << &j << endl;
  cout << "  address value in p     " << setw(8) << p << endl;

  fun2(a+b+c+d+e+f+g+h+i+j);
}

void fun2(int n)
{
  int a[65536], *p = new int[65536];

  cout << "starting fun2()\n";
  cout << "  address of param n     " << setw(8) << &n << endl;
  cout << "  address of local a[0]  " << setw(8) << &a[0] << endl;
  cout << "  address of a[65535]    " << setw(8) << &a[65535] << endl;
  cout << "  address value in p     " << setw(8) << p << endl;
  cout << "  address of p[65535]    " << setw(8) << &p[65535] << endl;

  fun3(16);
}

void fun3(int n)
{
  int a[16], *p = new int[n];

  cout << "starting fun3()\n";
  cout << "  address of param n     " << setw(8) << &n << endl;
  cout << "  address of local a[0]  " << setw(8) << &a[0] << endl;
  cout << "  address value in p     " << setw(8) << p << endl;
}