I am trying to implement the code snippet below. However I am unable to get my expected results. For example if my disanceFromLoc = 0.16, I am still getting my output as 0.16 km.
I have an Entity \"Item\" in Core Data.Item has two attributes: name and number.name is an NSString* and number is an NSNumber*.I specified \"Integer 32\" as the type for number in the Core Data model
how do I set the value of an NSNumber variable (without creating a new object) in objective-c? Background
Why is NSNumber immutable? Was there a good reason? Because now I am thinking about creating my own class just for the sa开发者_开发百科ke of mutability.A number is a very basic data type. A number is
Sorry to bother again, but as I am new C++ I am having a lot of weird and silly problems. I am programing a MCMC method. I read in this forum that the WELL RNG was a good alternative to generate rand
I am trying to take EXIF data from the iPhone to calculate brightness. I need to access two specific NSNumber\'s ExifExposureTime and ExifISOSpeed to be converted to floats, but when I try to convert
I\'m working on a nice app as per usual and then this happens! You spin the wheel of fortune in my app, and when the spinning animation is finished, the app is supposed to randomize a number, and disp
I have an iOS 4 project using Core Data. When I design the Core Data Model, the attributes have Int开发者_如何转开发eger 64, Integer 32, Integer 16, Decimal, Double, Float, and Boolean.
I am trying to compare a view tag with another tag by using the following code for(UIView *subView in cardsContainerView.subviews){
So I understand you need NSNumber to save integers in Core Data. My question is what is the best technique for accessing the integers here, performing maths, and then updating?
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