Round off to nearest .50

In my book it said that i can use this

cout.setf(ios::fixed, ios::floatfield);
cout.precision(2);

But what if i want to round it off to the nearest 0.50?

like double Cash = 10.34 will be 10.50

Thanks.

you could try configuring ceil() to work for you... you might also need floor()... I think there's a better way, but I can't think of it right now...

I/O functions don't do math. Just round it manually.

Code:

---

double round(double number)
{
 double change = number - (int)number;
 number -= change;
 if(change < 0.25) change = 0;
 else if(change > 0.75) change = 1;
 else change = 0.50;
 return number + change;
}

---