/* pvm.cpp */
// Malliohjelma p„iv„m„„r„n k„ytt„mises„/ vl-97
#include <stdio.h>
#include <iostream.h>
#include <iomanip.h>
#include <time.h>

//---------------------------------------------------------------------------
// P„iv„m„„r„-luokka, mukana vain p„iv„ykseen liittyv„
class cPvm {
private:
  int pv;
  int kk;
  int vv;
public:
  const cPvm &paivays() {         // Palautetaan nykyinen p„iv„m„„r„
    pv = 14; kk = 2; vv = 2000;
    return *this;
  }

  void alusta(int ap=0,int ak=0, int av=0) {
    paivays();
    if ( ap > 0 ) pv = ap;
    if ( ak > 0 ) kk = ak;
    if ( av > 0 ) vv = av;
    if ( vv < 50 ) vv += 2000;
    if ( vv < 100 ) vv += 1900;
  }

  cPvm(int ap=0,int ak=0, int av=0) { alusta(ap,ak,av); }

  ostream &tulosta(ostream &os = cout) const {
    char oldf  = os.fill('0');
    os << setw(2) << pv << "." << setw(2) << kk << "." << setw(4) << vv;
    os.fill(oldf);
    return os;
  }

  cPvm &operator=(const char *s) {
    int p=0,k=0,v=0;
    sscanf(s,"%d.%d.%d",&p,&k,&v);
    alusta(p,k,v);
    return *this;
  }

}; // cPvm
//---------------------------------------------------------------------------
ostream &operator<<(ostream &os,const cPvm &pvm) { return pvm.tulosta(os);  }

//---------------------------------------------------------------------------
int main(void)
{
  cPvm tammi2000(1,1), maalis97(1,3,97),  tanaan;

  cout << tammi2000 << " " << maalis97 << " " << tanaan << endl;

  cPvm pvm;

  pvm = "12.1.1995"; cout << pvm << endl;
  pvm = "15.2"     ; cout << pvm << endl;
  pvm = "14"       ; cout << pvm << endl;

  return 0;
}