title: NSArray to NSString....Some Crashes occur
body: <p>I have some problem with converting NSArray to NSString.</p>
  
  <p>Here is the code.</p>
  
  <pre><code>- (void)createStringWithArray:(NSArray *)arr_1 andTheOtherArray:(NSArray *)are_2
  {
       NSString *outputString = @"Start";
  
       if (arr_1) {
           for (Object *object in arr_1) {
               outputString = [outputString stringByAppendingFormat:@"\n(%f, %f)", object.value1, object.value2];
           }
           outputString = [outputString stringByAppendingFormat:@"\nArray 1 End"];
       }
       if (arr_2) {
           for (Object *object in arr_2) {
               outputString = [outputString stringByAppendingFormat:@"\n(%f, %f)", object.value1, object.value2];
           }
           outputString = [outputString stringByAppendingFormat:@"\nArray 2 End"];
       }
  
       NSLog(@"%@", outputString);
  }
  </code></pre>
  
  <p>There are 48 objects and 1568 objects in each are_1 and are_2.</p>
  
  <p>I cannot find any problem with iPhone Simulator
  but, the application is crashed with no logs with the iPad mini and iPhone5 device.
  It occurs on the second loop function.</p>
  
  <p>I guess there must be memory issue, but I don't know what is wrong exactly.</p>
  
  <p>Please help on this.</p>