// C++ example 21-9-99 part 3        corporation.cpp

#include <std/string.h>
#include <iostream.h>

#include "legalentity.h"
#include "person.h"
#include "corporation.h"

corporation::corporation(string n, string a, person *p): legalentity(n,a)
{ president=p;
  numemployees=0; }

string corporation::tostring(void)
{ return name+" at "+address; }

person *corporation::getpresident(void)
{ return president; }

void corporation::changepresident(person *p)
{ president=p; }

int corporation::getnumemployees(void)
{ return numemployees; }

person *corporation::getemployee(int i)
{ if (i<0 || i>=numemployees)
    return NULL;
  return employees[i]; }

void corporation::employ(person *p)
{ if (numemployees>=100)
  { cerr << "too many employees for "+name+"\n";
    exit(1); }
  employees[numemployees]=p;
  numemployees+=1;
  p->setemployer(this); }

void corporation::printall(void)
{ cout << "Corporation: " << tostring() << "\n";
  cout << "  President: " << president->tostring() << "\n";
  cout << "  " << numemployees << " employees:\n";
  for (int i=0; i<numemployees; i+=1)
    cout << "    " << employees[i]->tostring() << "\n"; }