Re: Mod (%) function in C/Objective-C?
Re: Mod (%) function in C/Objective-C?
- Subject: Re: Mod (%) function in C/Objective-C?
- From: Keary Suska <email@hidden>
- Date: Mon, 11 Aug 2014 17:41:21 -0600
On Aug 11, 2014, at 2:52 PM, Dave <email@hidden> wrote:
> On 10 Aug 2014, at 16:16, Keary Suska <email@hidden> wrote:
>
>
>> I don't think so, although I would expect a C lib somewhere to address it. Anyway, isn't easier to just always abs(x)%y?
>>
>
>
>> abs(x)%y
>
> Doesn’t give the same result, it’s one off:
>
> myIndex: -5 myMod: 1 abs(x)%y: 2
> myIndex: -4 myMod: 2 abs(x)%y: 1
> myIndex: -3 myMod: 0 abs(x)%y: 0
> myIndex: -2 myMod: 1 abs(x)%y: 2
> myIndex: -1 myMod: 2 abs(x)%y: 1
> myIndex: 0 myMod: 0 abs(x)%y: 0
> myIndex: 1 myMod: 1 abs(x)%y: 1
> myIndex: 2 myMod: 2 abs(x)%y: 2
> myIndex: 3 myMod: 0 abs(x)%y: 0
> myIndex: 4 myMod: 1 abs(x)%y: 1
>
> Where:
>
> myIndex = input value.
> myMod = result of calling the mod function I added.
> abs(x)%y = abs(x)%y.
Maybe my brain isn't working correctly but that doesn't make sense to me. Could you show the output with both x and y shown? Now, you aren't dividing by a negative integer, are you? I believe that is undefined...
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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