// add specified number of days to date
const Date &Date::operator+=(int additionalDays)
{
for (int i = 0; i < additionalDays; ++i)
helpIncrement();
return *this; // enables cascading
}
// overloaded postfix increment operator; note that the
// dummy integer parameter does not have a parameter name
Date Date::operator++(int)
{
Date temp = *this; // hold current state of object
helpIncrement();
// return unincremented, saved, temporary object
return temp; // value return; not a reference return
}
// overloaded prefix increment operator
Date &Date::operator++()
{
helpIncrement(); // increment date
return *this; // reference return to create an lvalue
}
// Add a specific number of days to a date
void Date::operator+=(int additionalDays)
{
for (int i = 0; i < additionalDays; i++)
helpIncrement();
// enables cascading
}
