// straus1.cpp
#include <iostream>
using namespace std;
class Vector {
public:
   enum { max = 32000 };
   class Range {
   public:
      int index;
      Range(int i): index(i){}
   };
   class Size {};
   Vector(int);
   int &operator[](int);
private:
   int *p;
   int sz;
};

void f();

int main()
{ cout << "begin main()\n";
f();
cout << "end main()\n";
return 0;
}

Vector::Vector(int s)
{ cout << "Vector::Vector\n";
if (s<0 || s>max) throw Size();
sz = s;
p = new int[sz];
}

int &Vector::operator[](int i)
{ cout << "Vector::operator[](int)\n";
if (i>0 && i<sz) return p[i];
throw Range(i); }

void use_vectors()
{ cout << "use_vectors()\n";
Vector v(10);
int i;
for (i=9; i<12; i++)
{ v[i]=i*i;
cout << v[i] << " ";
}
Vector vbad(-10);
cout << "BAD\n";
}

void f()
{ cout << "begin f()\n";
try
{ use_vectors(); }
catch (Vector::Range r)
{ cout << "Index " << r.index << " out of range!\n";
exit(99);
}
catch (Vector::Size)
{ cout << "ERROR in the constructor Vector::Size\n";
exit(99);
}
cout << "end f()\n";
}

begin main()
begin f()
use_vectors()
Vector::Vector
Vector::operator[](int)
Vector::operator[](int)
81 Vector::operator[](int)
Index 10 out of range!