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The model used to open the store is incompatible with the one used to create the store
...el select your new version of data model for current data model
THAT'S NOT ALL ) You should perform so called "light migration".
Go to your AppDelegate and find where the persistentStoreCoordinator is being created
Find this line if (![_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteS...
Convert hyphens to camel case (camelCase)
...-i in marker-image and capture only the i. This is then uppercased in the callback function and replaced.
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“Cloning” row or column vectors
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You can index with None to do the same thing.
– DanielSank
May 19 '15 at 1:54
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How to validate an e-mail address in swift?
...s quite funny that ............ as well as (1) the regex being utterly, totally incorrect (2) the regex (even within the context of what it's trying to do) has major errors (3) the Swift is wrong (4) even setting that aside, the style is totally wrong (5) not that it matters given all the rest but i...
Weak and strong property setter attributes in Objective-C
...g' part (casting from NS to CF) is a little tricky. You still have to manually manage CFRelease() and CFRetain() for CF objects. When you convert them back to NS objects you have to tell the compiler about the retain count so it knows what you have done.
Its all here.
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Is there a printf converter to print in binary format?
...ers need to know how to properly use the standard library. Maybe using an indexed array for assignment would have been a good demonstration (and will actually work, since b isn't reset to all-zeros each time you call the function).
– tomlogic
Aug 10 '10 at 17:...
Difference between int32, int, int32_t, int8 and int8_t
...es not define anything named int8 or int32 -- the latter (if they exist at all) is probably from some other header or library (most likely predates the addition of int8_t and int32_t in C99).
Plain int is quite a bit different from the others. Where int8_t and int32_t each have a specified size, in...
How can I add an item to a IEnumerable collection?
...erloading operator+ as Concat (by the way, do you know that in VB, you can index IEnumerable as if it was an array - it uses ElementAt under the hood): connect.microsoft.com/VisualStudio/feedback/…. If we also get two more overloads of Concat to take a single item both on the left and on the right...
Check if a folder exist in a directory and create them using C#
...er named MP_Upload , and if it does not exist, create the folder automatically?
7 Answers
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How to get current timestamp in milliseconds since 1970 just the way Java gets
...e UNIX epoch, but the spec only says it must be the system-wide real time wall clock. There is no requirement for the steady_clock to match reality, only that it only move forward.
– Oz.
Jul 27 '15 at 23:22
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