How to make negative numbers into positive
If you want to force a number to change or keep it positive. Here is the way: abs() for int fabs() for double fabsf() for float If you want more info, you can look here: http://stackoverflow.com/
How to create an iOS App Previews with QuickTime
How to create a iOS App Preview First look for the System Requirement: iOS device with Lightning connector Retina display iOS 8 A Mac with OS X Yosemite In other words: You can only use iPhone and iPad that have Lightning connector. Only iPhone and iPad with Retina Display And the iOS 8 For more questions…