Cascading member function calls with the this pointer : this « Class « C++ Tutorial

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C++ Tutorial » Class » this 
9.27.4.Cascading member function calls with the this pointer
#include <iostream>
using std::cout;
using std::endl;

#include <iomanip>
using std::setfill;
using std::setw;

class Time 
{
public:
   Timeint 0int 0int );

   Time &setTimeint, int, int );
   Time &setHourint );
   Time &setMinuteint );
   Time &setSecondint );

   int getHour() const;
   int getMinute() const;
   int getSecond() const;

   void printUniversal() const;
private:
   int hour;
   int minute;
   int second;
};

Time::Timeint hr, int min, int sec 

   setTimehr, min, sec )
}
Time &Time::setTimeint h, int m, int )
{
   setHour);
   setMinute);
   setSecond)
   return *this;
}
Time &Time::setHourint )
{
   hour = h;
   return *this
}

Time &Time::setMinuteint )
{
   minute = m;
   return *this;
}

Time &Time::setSecondint )
{
   second = s;
   return *this;
}

int Time::getHour() const 

   return hour; 
}

int Time::getMinute() const 

   return minute; 
}

int Time::getSecond() const 

   return second; 
}

void Time::printUniversal() const
{
   cout << hour << ":" << minute << ":" << second;
}

int main()
{
   Time t;
   t.setHour18 ).setMinute30 ).setSecond22 );

   t.printUniversal();

   t.setTime202020 ).printUniversal();
   cout << endl;
   return 0;
}
18:30:2220:20:20
9.27.this
9.27.1.Use the 'this' pointer.
9.27.2.Using the this pointer
9.27.3.Returning the dereferenced this pointer
9.27.4.Cascading member function calls with the this pointer
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