synthesize

问题 I've been building my program in the "Debug X86-64" mode (Xcode 3.6) and everything works flawlessly. However, I just tried switching to "Release X86-64" mode and upon compiling received the following errors for each of my properties: Synthesized property 'x' must either be named the same as a compatible ivar or must explicitly name an ivar. Where 'x' is one of my properties, the first being 'company' (I received 51 errors of this type.). In my .h interface file, I've listed the items this

问题 As far as I know, since XCode 4.4 the @synthesize will auto-generate the property accessors. But just now I have read a sample of code about NSUndoManager , and in the code it noticed that the @synthesize is added explicitly. Like: @interface RootViewController () @property (nonatomic, strong) NSDateFormatter *dateFormatter; @property (nonatomic, strong) NSUndoManager *undoManager; @end @implementation RootViewController //Must explicitly synthesize this @synthesize undoManager; I am feeling

问题 is there a way to synthesize an architecture in verilog such that a deeply nested endpoint can access some top level pins (from a .ucf) without expressly routing the pins through every module of the hierarchy. In my case i have a PCIe block with a deeply nested endpoint. AT the endpoint there have an address decoder that needs to provide some signal information from pins at the top level. I'd rather not modify every intervening module to carry the necessary wires. my web searches are

问题 I created a @property by right-clicking and dragging from ViewController.xib into ViewController.h , but @synthesize is not being automatically created in ViewController.m . This post said that @synthesize is no longer necessary, but I'm wondering if auto-complete needs @synthesize for it to work correctly. Q: Do I need to include @synthesize ? 回答1: In a word, no. Xcode 4.5 is fully aware of the fact that @synthesize is no longer required. You're good to go without! 回答2: When using ARC

问题 Suppose I have a structure that I want to parse into with Spirit Qi, that is defined as such: struct data_ { bool export; std::wstring name; data_() : export(false) {} }; Also, suppose the struct has been adapted to fusion like this: BOOST_FUSION_ADAPT_STRUCT( data_, (bool, export) (std::wstring, name) ) And the associated rule is: qi::rule<Iterator, data_(), skipper<Iterator> > rule_data; rule_data = -lexeme["SpecialText" >> !(alnum | '_')] [ boost::phoenix::at_c<0> = true ] // If this

问题 It's as simple as that. Running Lion. I just upgraded to XCode 4.4 loaded my most recent XCode 4.3 project file commented out one @synthesize line of code and errors abound. :( Verified compiler is set to 'LLVM 4.0'. Then I did the same test but created a new project within XCode 4.4, and voila! Auto @synthesize works within a 4.4 project. Auto @synthesize also seems to work on new properties added to the code. But existing old one generate an error. Anyone else experience this? Any other

问题 This question already has answers here : How does an underscore in front of a variable in a cocoa objective-c class work? (9 answers) Closed 6 years ago . I wrote a setter method - - (void)setMyProp:(MyProp *)myProp{ _myProp = myProp; } How is underscore put before property name is working? I know this question has been asked, but they are about user setting property name to _myProp, some convention. I am not synthesizing or changing the property name. How this underscore is working? 回答1: If

问题 I'm a newbie of Objective-C language and I'm trying to understand the basic concepts. I came from Java language so I have already know the principle of OOP programming. Here it is the code I wrote. It's very simple but it doesn't work properly. I have some issues using @property and @synthesize #import <Foundation/Foundation.h> @interface Car: NSObject @property(nonatomic,retain) NSString *brand; @property int year; @end //Car Interface #import "Car.h" @implementation Car @synthesize brand;

问题 @interface ViewController : UIViewController{ NSNumber *nmbr; } @property (nonatomic, readonly) NSNumber *nmbr; - (NSNumber*)nmbr; - (void)setNmbr:(NSNumber *)value; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; [self setNmbr:[NSNumber numberWithInt:4]]; NSLog(@"Value of number is: %@", self.nmbr); } - (NSNumber*)nmbr{ return nmbr; } - (void)setNmbr:(NSNumber *)value{ nmbr = value; } @end I am expecting the program not to let setNmbr function work because nmbr

问题 With the latest LLVM build, the requirement for synthesizing properties has been removed. Therefore I was able to remove all my @synthesize statements except for the ones for NSFetchedResultsController . Does anyone know why the compiler is warning me when I remove the @synthesize fetchedResultsController; line? Error: Use of undeclared identifier "fetchedResultsController", did you mean _fetchedResultsController? This is my code: @property (nonatomic, strong) NSFetchedResultsController