datetime.h

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#ifndef DATETIME_H
#define DATETIME_H

#include <iostream>
#include <string>
#include <stdexcept>

using namespace std;

class DateTime
{

  friend ostream& operator<<( ostream& out, const DateTime& dt );
  friend istream& operator>>( istream& in, DateTime& dt ) throw ( invalid_argument );

  public:
    DateTime();
    DateTime( int mm, int dd, int yy, int h, int m, string period ) throw ( invalid_argument );
    bool operator==( const DateTime& dt ) const;
    bool operator!=( const DateTime& dt ) const;
    bool operator<( const DateTime& dt ) const;
    bool operator>( const DateTime& dt ) const;
    void print( ostream& out = cout ) const;
    void setDate( int mm, int dd, int yy ) throw ( invalid_argument );
    void setTime( int h, int m, string period ) throw ( invalid_argument );

  private:
    int mm;
    int dd;
    int yy;
    int h;
    int m;
    string period;

}; // DateTime

#endif