Re: bitwise operations in obj C
Re: bitwise operations in obj C
- Subject: Re: bitwise operations in obj C
- From: "Clark Cox" <email@hidden>
- Date: Wed, 17 Oct 2007 10:33:50 -0700
On 10/17/07, Erfan Aleemullah <email@hidden> wrote:
> hello all,
> I have a modulus operation in my code and it runs fine, but my original
> algorithm avoided division all together for speed reasons - I am using
> modulus due to a change in requirements.
>
> How exactly (or can I) use bit operations to achieve the same effect and
> increase my speed here ?
Are you sure that integer division is actually your bottleneck here?
Have you profiled you code?
> Code:
>
> line_Number++;
>
> if(line_Number % increment == 0)
> // lineNumber is any integer
> value > 0, can get large w/ time - 100,000++
> { // increment is user selectable
> integer from a set of given values
> ....
> ....
> }
--
Clark S. Cox III
email@hidden
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