title: Removing time components from an NSDate object using Objective C/Cocoa
body: <p>I'm trying to write a simple function using Objective C that accepts an NSDate object and returns an NSDate object that contains the same date value but has removed any time components from the date.</p>
  
  <p>For example if I were to pass an NSDate with a value of '2010-10-12 09:29:34' the function would return 2010-10-12 00:00:00.</p>
  
  <p>The I'm using function seems to work properly.  However, when I test the iPhone app I'm developing with Instruments it reports there is a memory leak in the function I'm using.  Take a look at my function below.  Where is there a memory leak?  Is there a better way to achieve the functionality I desire?</p>
  
  <p>Thanks in advance!!</p>
  
  <pre><code>-(NSDate *)dateWithOutTime:(NSDate *)datDate
  {
      if (datDate == nil)
      {
          datDate = [NSDate date];
      }
  
      unsigned int      intFlags   = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
      NSCalendar       *calendar   = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
      NSDateComponents *components = [[[NSDateComponents alloc] init] autorelease];
  
       components = [calendar components:intFlags fromDate:datDate];
  
       return [calendar dateFromComponents:components];
  }
  </code></pre>