nakiwo

// Xcode4.4
// llvm4の機能のうち一部が、
// iOS 5.1 SDK で使えない

// 例
NSNumber *b = @YES; // error

NSArray *array = @[ @1, @2, @3 ];
NSNumber *n = array[1]; // error

nakiwo

@interface TestView : UIView
@end

@implementation TestView

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
    UIView *view = [super hitTest:point withEvent:event];
    if(view == self) {
        return nil;

nakiwo

- (void)didReceiveMemoryWarning
{
    if([self isViewLoaded] && self.view.window == nil) {
        // viewWillUnloadでやっていた処理を書く
        self.view = nil;
        // viewDidUnloadでやっていた処理を書く
    }

    [super didReceiveMemoryWarning];
}