The debugger pipes up with an error on this line of code:



It gives the error message: "Operator not applicable to this operand type." This confuses me. Change is a real number, and Quarters is an integer. I would expect the div operator to return an integer to me, which is exactly what the variable Quarters is looking for. What am I missing here? Thanks.

--Gadfly

In c++, math operators, if you use math on a double and an int, it always returns a double.
It kind of makes sense really, But in C++ that would only throw a warning I belive, because 4/.25 is 16.00, which easily becomes an int.

But that's C++, I don't know the slightest about Pascal. but I suspect it might be the same.

Wouldn't it be easier to use modulus(remainder) division to find the change?
Either way, why not just try dividing quarters by an int, or making quarters a double and see if that's what's causing the problem?

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I was able to resolve the problem by using something similar to your second suggested method. I suppose pascal doesn't like the way I wanted to do things, even though it should've worked out just fine. Freakin' Pascal. I need to learn a different language.

The problem is that "x div y" is doing integer division, not floating point division.

0.25 is simply being rounded down to integer 0, an invalid denominator, so yielding an error.

It's the same as in your PI calculating routine we did back in the summer.

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