Searching crash

[mazraf]

I got my search function to search one array, while displaying titles from another and keeping pairs of information together. I would now like to expand it from pairs to threes, and possibly fours. Unfortunately, as soon as I added objects into a third array (without changing the search-related coding at all), the simulator thres an uncaught exception error and crash. The arrays are NSMutableArrays, and they each contain 120 strings. I don't understand why it would crash a good program when all I did was add objects to the array. Any suggestions?

[smithdale87]

Any suggestions?

Post the code where you're adding the objects. Also post the exception that you're getting.

[mazraf]

- (void)viewDidLoad {
    [super viewDidLoad];

	// Initialize the source arrays
	TdataSource = [[NSMutableArray alloc]init];
	RdataSource = [[NSMutableArray alloc]init];
	BdataSource = [[NSMutableArray alloc]init];
	IdataSource = [[NSMutableArray alloc]init];

	[TdataSource addObject:@""];
// x120
	[RdataSource addObject:@""];
// x120
	[BdataSource addObject:@""];
// x120
	[IdataSource addObject:@""];
// x120

	//initialize the other arrays;
	TtableData =	[[NSMutableArray alloc]init];
	RtableData =	[[NSMutableArray alloc]init];
	BtableData =	[[NSMutableArray alloc]init];
	ItableData =	[[NSMutableArray alloc]init];
}

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {

	// remove all data that belongs to the previous search
	[TtableData removeAllObjects];
	[RtableData removeAllObjects];
	
	if([searchText isEqualToString:@""] || searchText==nil) {
		[myTableView reloadData];
		return;
	}
	
	NSString *searchLower = [searchText lowercaseString];
	
	NSInteger counter = 0;
	
	for(NSString *name in RdataSource) {
		NSString *nameLower = [name lowercaseString];
		NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init];
		NSRange r = [nameLower rangeOfString:searchLower];
		
		if(r.location != NSNotFound) {
			[RtableData addObject:name];
			[TtableData addObject:[TdataSource objectAtIndex:counter]];
		}
		
		counter++;
		[pool release];
	}
	
	[myTableView reloadData];
}

I'm actually unsure what the exception is. The simulator goes behind xcode, and I get a message under 'Build and Go' at the top that says '___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___'
It is thrown as soon as you try to enter text in the search field. It only happens after I uncomment a block of 120 addObjects. 2 is good, 3 crashes, and I haven't tried with 4.

[smithdale87]

when you get the exception, open up the console, type "bt".. this should give you exactly what line in your code is crashing

[mazraf]

(gdb) bt
#0  0x302ac924 in ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ ()
#1  0x963f2e3b in objc_exception_throw ()
#2  0x3028e5fb in +[NSException raise:format:arguments:] ()
#3  0x3028e55a in +[NSException raise:format:] ()
#4  0x305684e9 in _NSArrayRaiseBoundException ()
#5  0x30505a47 in -[NSCFArray objectAtIndex:] ()
#6  0x00007a74 in -[SearchViewController searchBar:textDidChange:] (self=0xd59ac0, _cmd=0x319f5a4a, searchBar=0xd5d670, searchText=0xd6e9e0) at /Users/krv/Desktop/MobilePearls/Classes/SearchViewController.m:635
#7  0x30ac2a9c in -[UISearchBar(UISearchBarStatic) _searchFieldEditingChanged] ()
#8  0x309596b1 in -[UIControl(Deprecated) sendAction:toTarget:forEvent:] ()
#9  0x3095bcd9 in -[UIControl(Internal) _sendActionsForEventMask:withEvent:] ()
#10 0x30960dc2 in -[UITextField fieldEditorDidChange:] ()
#11 0x3096f177 in -[UIFieldEditor webViewDidChange:] ()
#12 0x30509e5a in _nsnote_callback ()
#13 0x302389e5 in _CFXNotificationPostNotification ()
#14 0x30507710 in -[NSNotificationCenter postNotificationName:object:userInfo:] ()
#15 0x3024a10d in __invoking___ ()
#16 0x30249ff8 in -[NSInvocation invoke] ()
#17 0x358763a7 in SendDelegateMessage ()
#18 0x332dcebf in WebEditorClient::respondToChangedContents ()
#19 0x358e7f22 in WebCore::Editor::respondToChangedContents ()
#20 0x358e681c in WebCore::Editor::appliedEditing ()
#21 0x358e66b3 in WebCore::TypingCommand::typingAddedToOpenCommand ()
#22 0x358d689f in WebCore::TypingCommand::insertTextRunWithoutNewlines ()
#23 0x358d67db in WebCore::TypingCommand::insertText ()
#24 0x358d6623 in WebCore::TypingCommand::doApply ()
#25 0x358d6348 in WebCore::EditCommand::apply ()
#26 0x358d5695 in WebCore::TypingCommand::insertText ()
#27 0x358d4b9c in WebCore::Editor::insertTextWithoutSendingTextEvent ()
#28 0x358d47d5 in WebCore::EventHandler::defaultTextInputEventHandler ()
#29 0x358a39d6 in WebCore::EventTargetNode::defaultEventHandler ()
#30 0x358a3660 in WebCore::EventTargetNode::dispatchGenericEvent ()
#31 0x358a3101 in WebCore::EventTargetNode::dispatchEvent ()
#32 0x358d4467 in WebCore::EventHandler::handleTextInputEvent ()
#33 0x358d4369 in WebCore::Editor::insertText ()
#34 0x332dc83d in -[WebHTMLView(WebNSTextInputSupport) insertText:] ()
#35 0x358d41f4 in -[WAKResponder tryToPerform:with:] ()
#36 0x332dc323 in -[WebView(WebViewEditingActions) _performResponderOperation:with:] ()
#37 0x332dc280 in -[WebView(WebViewEditingActions) insertText:] ()
#38 0x30a50c05 in -[UIWebDocumentView insertText:] ()
#39 0x30a1c1b6 in -[UIKeyboardImpl addInputString:fromVariantKey:] ()
#40 0x30b18d61 in -[UIKeyboardLayoutStar sendStringAction:forKey:] ()
#41 0x30b17736 in -[UIKeyboardLayoutStar handleHardwareKeyDownFromSimulator:] ()
#42 0x308fff85 in -[UIApplication handleEvent:withNewEvent:] ()
#43 0x308fad82 in -[UIApplication sendEvent:] ()
#44 0x309013e1 in _UIApplicationHandleEvent ()
#45 0x32046375 in PurpleEventCallback ()
#46 0x30245560 in CFRunLoopRunSpecific ()
#47 0x30244628 in CFRunLoopRunInMode ()
#48 0x32044c31 in GSEventRunModal ()
#49 0x32044cf6 in GSEventRun ()
#50 0x309021ee in UIApplicationMain ()
#51 0x00001dc0 in main (argc=1, argv=0xbfffef7c) at /Users/krv/Desktop/MobilePearls/main.m:14
(gdb)

So, the problem is with my 'main.m' at line 14?

int main(int argc, char *argv[]) {
    
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    int retVal = UIApplicationMain(argc, argv, nil, nil);
    [pool release];
    return retVal;
}

That's the code from my main. Line 14 is the int retval line, I think.

[mazraf]

Fixed it. I got the name of one set of arrays wrong. They all had to be the same size, but they weren't.