[thelist] mod (%) help

[Ken Schaefer]

intWheels = x
intRemainder = x MOD 4
intCompleteWheelSets = (x - intRemainder) / 4

?

Cheers
Ken


> -----Original Message-----
> From: thelist-bounces at lists.evolt.org [mailto:thelist-bounces at lists.evolt.org]
> On Behalf Of Brian Cummiskey
> Sent: Thursday, 17 July 2008 5:05 PM
> To: thelist at lists.evolt.org
> Subject: Re: [thelist] mod (%) help
>
> Aaron Vegh wrote:
> >
> > if (wheelqty % 4 == 0) {
> >       $wheel_discount = givediscount(wheelqty);
> > }
> > else {
> >       $wheel_discount = 0;
> > }
> >
>
>
> Thanks Aaron.   I thought of something similar to this too, however, it
> doesn't take into account the fact that 4 should still be discounted,
> but the remainder would not be.  The problem is that the remainder
> doesn't roll over.
>
> ie, if wheelqty = 6
> we have 2 left over from the mod, so by that logic, nothing would get
> discounted.   the end result from ordering 6 wheels against 1 kit is
> that the 4 get discounted, the other 2 at regular price.   I can easily
> find this with the mod.
>
> Now, take an example of 10 wheels (and this will be the case for
> anything over 8 wheels).
> 4 get the discount
> 10%4 mod returns 2
> that leaves me 2 full price...   but now i'm missing 4 wheels due to the
> mod counter 'wrapping'  [1,2,3,0,1,2 <--- this is our 2 returned]
>
> i somehow need to track each mod loop iteration, and then add that as
> '4' to the returned mod figure.  so, 4 + 2 returned from the modulus = 6
> at regular price.
>
>
>
> Further, once this is worked out, I need to wrap it in another iteration
> to test against kit quantity....
>
>
> if 2 kits, 8 wheels get discount.
> if they only ordered 7, the 2nd set of 3 wheels doesn't count as a kit,
> so only 4 wheels get the discount out of the 7 and 3 at regular price.
> if 8 , all 8 get discounted
> if 9, 8 discounted, 1 regular price.
>
>
> and so on for X kits
>
>
> It seems so simple, yet i can't put it in a logical statement.