Not strictly Cocoa, but a trick I recently incorporated to remove the
mod-bias is (email code):
float frand = (random() * 1.0) / (RAND_MAX * 1.0); // gives
0.0-0.99999...
int myRand = frand * 15; // to get a number from 0-14, inclusive.
On Aug 6, 2009, at 9:12 AM, Jeremy Pereira wrote:
That's a bit convoluted. How about:
srandom(time(NULL));
array = [[NSMutableArray alloc] init];
while ([array count] < 15)
{
int randomNo = random() % 15 + 1; // Gives biased results, by the
way
NSNumber numberToAdd = [NSNumber numberWithInt: randomNo];
if (![array containsObject: numberToAdd])
{
[array addObject: numberToAdd];
}
}
--
Carpe DM -- Seize the Dungeon Master
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