automatic-ref-counting

I have converted my app to use ARC. Before I had the following line of code: NSArray *colors = [NSArray arrayWithObjects:startColor, endColor, nil]; Since the implicit conversion of a non-Objective-C pointer type to 'id' is disallowed with ARC, I rewrote the line like this: NSArray *colors = [NSArray arrayWithObjects:(__bridge id)startColor, (__bridge id)endColor, nil]; Everything works fine on the simulator, however on the device the app crashes on the mentioned line with the error message: -[Not A Type retain]: message sent to deallocated instance Any ideas how to solve it? Brad Larson This

I need to create in an iOS application a fake va_list to pass to a NSString initWithFormat:arguments: function, this is my code: NSArray *fixedArguments = [[NSArray alloc] initWithArray:arguments]; NSRange range = NSMakeRange(0, [fixedArguments count]); va_list fakeArgList = (va_list)malloc(sizeof(NSString *) * [fixedArguments count]); __unsafe_unretained id *ptr = (__unsafe_unretained id *)fakeArgList; [fixedArguments getObjects:ptr range:range]; content = [[NSString alloc] initWithFormat:outputFormat arguments:(va_list)fakeArgList]; free(fakeArgList); The compiler complains with this message

Working on an iOS project that targets 4.0 and 5.0, using ARC. Running into an issue related to blocks, ARC and referencing an object from outside the block. Here's some code: __block AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; [operation setCompletionBlock:^ { if ([operation isCancelled]) { return; } ... do stuff ... operation = nil; }]; In this case, the compiler gives a warning that using 'operation' in the block is going to lead to a retain cycle. Under ARC, __block now retains the variable. If I add __unsafe_unretained, the compiler

I was wondering if anyone that was using the SFHFKeychainUtils managed to modify them to be compatible for ARC. More exactly the NSDictionary *attributeResult = NULL; NSMutableDictionary *attributeQuery = [query mutableCopy]; [attributeQuery setObject: (id) kCFBooleanTrue forKey:(__bridge id) kSecReturnAttributes]; OSStatus status = SecItemCopyMatching((CFDictionaryRef) attributeQuery,(CFTypeRef *)(attributeResult)); I tried OSStatus status = SecItemCopyMatching((__bridge CFDictionaryRef) attributeQuery,(CFTypeRef *)(attributeResult)); also CFTypeRef subAttributeResult = (CFTypeRef *)(objc

This question already has an answer here: Under automatic reference counting, why are retain, release, and dealloc not allowed? 4 answers After I updated to Xcode 4.2, I can no longer release anything. When I start typing "release" it suggest "release" but with a red line across. If I write it anyway it shows an error and displays these two messages: 'release' is unavailable: not available in automatic reference counting mode Automatic Reference Counting forbids explicit message send of 'release' Does anyone know what I can do? DarkDust You need to turn off Automatic Reference Counting . You