A Summary of the WWDC25 Group Lab

Hi guys,just downloaded the GM but still can't override the same error had with another El Capitan beta..After downloading the installer, I try to execute, the program runs good for a while showing the time remaining, but then it stops with that error message:this core storage operation..Please help!I'd rather not to have a clean install..

I noticed (in optimized builds) that dead code stripping didn't seem to be performed for sqrt, while it did when replacing sqrt with eg exp.What's the reason for this?Here's a little program to demonstrate it:import Cocoa // (For CACurrentMediaTime) struct DeadCodeEliminationTester { var usedValue: UInt64 = 0 // Will be printed at the end. Non-ignored results are xored into this value. // Function that returns the time (in seconds) it takes to make a // hundred million calls to fn, using or ignoring the result of the calls. mutating func timeLotsOfCallsTo(fn: (Double) -> Double, useResults: Bool) -> Double { let startTime = CACurrentMediaTime() var temporaryUsedValue: UInt64 = 0 for i in 0 ..< 100_000_000 { let doubleResult = fn(Double(i)) temporaryUsedValue ^= unsafeBitCast(doubleResult, UInt64.self) } let stopTime = CACurrentMediaTime() if useResults { usedValue ^= temporaryUsedValue } return stopTime - startTime } mutating func testFunction(fn: (Double) -> Double, label: String) { let timeUsing

Hello, we are a group of Brazilian students and are now working in collaboration with a french institution to develop a RK app. We want to know if there is any further development in Sage's Backend solution to support other studies.Thanks in advance. Cheers from Brazil!Pietro.

As everyone is working on new apps for tvOS, but very few will have an actual AppleTV before the release, I'm thinking we could maybe create a list of people who have a Developer Kit and are willing to beta test for others as well. It would definitely help the community if we were helping each other beta test, as we're the only ones who can.

I asked this question over on Stack Overflow and based on the answers I have recieved what I want to do should be possible however I am still leaning towards it can not be done.I have a NSTimer updating several views via a delegate on a set timeframe.I thought it would look nice to place my views into a split view on an iPad as well as the iPhone 6x Plus. I successfully moved my views into a split view controller however when I rotate the device only one side is updated via the delegate (master is updated or detail is updated) depending on where I was in the app when I rotate the device from portrait. That side continues to Update while the device is in the Split View Mode. If I click on a new row in the master and the master was updating (detail was not) then the detail starts updating and the master stops.I have a MasterTimer class that is instantiated once and only once when the app is launched or returns to the foreground that has several delegate methods (protocol). This masterTimer class has an instance

This is a strange issue. I have an application that creates an email for the user to send. Everything appears to work, except that one of my users is reporting he can't get it to send. It displays my no accounts configured blah blah blah error. Which is strange because from what I can tell, he does have a valid email account set up that he can send from on the phone. He's not particularly tech savvy, so I am going to be working with his IT group later to try and get some more details.Basically, my question is this: under what circumstances will mfmailcomposeviewcontroller cansendmail return false?