yes, see my previous message;
you should NSLogged a NSDate object
Cheers!
On Fri, Mar 20, 2009 at 2:17 PM, Charles E. Heizer <heiz...@llnl.gov> wrote:
> Thanks,
> No it's just playing around right now. It would be nice to be able to
> specify if you wanted NSDate to be sub-second or second precision based.
>
> Just as question, can NSDate be overridden to be second precision based?
>
> Thanks,
> - Charles
>
>
> On Mar 20, 2009, at 2:05 PM, Mike Abdullah wrote:
>
>>
>> On 20 Mar 2009, at 20:50, Charles E. Heizer wrote:
>>
>>> Hello,
>>> I'm playing around with date time stuff right now and I'm trying to
>>> figure out the bets way to determine if one datetime is equal to
>>> another. The problem I'm running in to is "isEqualToDate" does not
>>> appear to work, the NSLog statement will show two identical datetime
>>> statements but I never see a "These dates are the same!".
>>>
>>> Can someone please tell me how I can get this to work.
>>>
>>> Thanks,
>>> Charles
>>>
>>> NSDate *theDateTimeToRunAt = [NSDate dateWithString:@"2009-03-20
>>> 13:18:00 -0700"];
>>> NSDate *theCurrentDateTime = [NSDate date];
>>> while(1)
>>> {
>>> NSLog(@"theDateTime1=%@ | theCurrentDate=%@", theDateTimeToRunAt,
>>> theCurrentDateTime);
>>> if ([theDateTime1 isEqualToDate:theCurrentDate]) {
>>> NSLog(@"These dates are the same!");
>>> [theDateTimeToRunAt addTimeInterval:900]; // Add 15
>>> Minutes to say
>>> hi again!
>>> }
>>>
>>> sleep(1);
>>> theDate = [NSDate date];
>>> }
>>
>> Because quite simply the dates are not exactly the same. NSDate is
>> based on NSTimeInterval which offers sub-second precision, and so it
>> is pretty unlikely that fetching the current time gives you a date
>> that is precisely 13:18. Instead, you want to compare the dates to see
>> if current date is greater than or equal to theDateTimeToRunAt.
>>
>> Is this really your intention for the code though, or just an example
>> method? If the former, why not just use +[NSThread sleepUntilDate:] ?
>>
>> Mike.
>>
>
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--
-mmw
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