looping and paging every 16 iterations

natronp · 08-10-2010, 08:44 AM

I need to add some very basic paging within a for loop. I'd like to loop through an array and shove groups of 16 into their own separate arrays.

Does anyone have an objective c modulus (modulo?) operator/paging example i can look at?

Don't come from a computer science background and that one (modulo) has so far escaped me...

thanks for any help!

TUX2K · 08-10-2010, 09:46 AM

%

TUX2K · 08-10-2010, 09:47 AM

Ok that one was a but small.

Just do some thing like:

Code:

if( i % 2 = 0)
{
}

natronp · 08-10-2010, 09:49 AM

Code:

if( i % 16 = 0)
{
}

so within my loop, this statement would catch each time i hit a multiple of 16?

TUX2K · 08-10-2010, 09:53 AM

Yes, that seems correct.
With one minor change:

Code:

if( i % 16 == 0)
{
}

= is assignment
== is compare.

My bad.

natronp · 08-10-2010, 10:48 AM

Yeah, i saw/caught that... thanks!

one more thing... do you know how to create/init an array with a dynamically created reference/name?

i.e.:

NSMutableArray *["array"+i] = [[NSMutableArray alloc]init];

I need to create a new/unique array within my loop when ever i get to 16...

thanks!

Quote:

Originally Posted by TUX2K

Yes, that seems correct.
With one minor change:

Code:

if( i % 16 == 0)
{
}

= is assignment
== is compare.

My bad.