Charles Srstka questions

Charles Srstka answers

• GCD - does a serial queue require an `NSLock` or a memory barrier to synchronize work?
• Bitshifts canceling out instead of expected behavior [duplicate]
• Can't get warnings for unused functions
• Is MemoryLayout<T>.size/stride/alignment compile time?
• Converting Objective-C malloc to Swift
• PDFKit's PDFDocument init(url: URL) does not work with HTTPS
• A swiftier way to convert String to UnsafePointer<xmlChar> in Swift 3 (libxml2)
• How to stop a Function from Running in Swift 3.0
• How to check to see if one view is on top of another view?
• How to pass values using KVO?