Developing for iPhone, I have a collection of points that I need to make complex queries on.For example: \"How many points have a y-coordinate of 10\" and \"Return all points with an X-coordinate betw
If there is a chance that an NSArray is empty, is it better to check it and set equal to nil if it\'s empty when it is assigned or to rather do the check when it is used?
Is that possible? I\'ve seen no method that would generate a plain old C vector or array. I have just开发者_如何学运维 NSNumber objects in my array which I need as C vector or array.An alternative to
Been following the Core Data tutorial on Apple\'s developer site, and all is good until I have to add something to the fetched store. I am getting this error after a successful build and load when I t
I have a NSMutableArray which contains a few NSString objects. How can I test if the array contains a particular string literal?
Is the there a way to multiply each NSNumber contained in the array by 10? Here is what I have so far:
I have an entity called \'Job\' with two boolean attributes named \'completed\' and \'logged\'. I am trying to retrieve all completed jobs that have not been logged at app start-up and change them to
I made a plist that looks like that: <?xml version=\"1.0\" encoding=\"UTF-8\"?> <!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList 1.0.dtd\">
How do i go about seeing if my integer is in an array of integers... 开发者_如何学运维eg i want to know if 7 is in an array of [ 1 3 4 5 6 7 8]
Totally confused here. I have a PARENT UIViewController that needs to pass an NSMutableArray to a CHILD UIViewController.I\'m expecting it to be passed by reference so that changes made in the CHILD
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