enum Days { Sunday, Monday, Tuesday, Wednesday,Thursday, Friday, Saturday };
for( Days d = Sunday; d < Saturday; ++d )
cout << "d is: " << d << endl;
C++ won't know how to increment d unless we define how that operator works for the type Days. Overload operator ++ so this "for" loop compiles and runs correctly.
day &operator++(day &d) {
d = (day)(d + 1);
return d;
}
i wrote this is this correct
>>i wrote this is this correct
Don't know -- did you test it?
i really tired but cant compile it never complied it without a class so i am confused . i have done overloading using class but this one i have no clue !
this works
enum Days { Sunday, Monday, Tuesday, Wednesday,Thursday, Friday, Saturday };
void operator++(Days& d)
{
if( d == Saturday )
d = Sunday;
else
d = (Days)((int)d + 1);
}
int main()
{
Days d = Sunday;
do
{
switch(d)
{
case Sunday: cout << "Sunday\n"; break;
case Monday: cout << "Monday\n"; break;
case Tuesday: cout << "Tuesday\n"; break;
case Saturday: cout << "Saturday\n"; break;
default: cout << (int)d << "\n"; break;
}
++d;
}while( d != Sunday );
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