Crash on App Start-Up

Hi, have you taken a look at a crash log for your app? Sometimes those contain additional info about the crash. You can find info about getting crash logs from iOS here.

Alternatively, you could add in assert statements to ensure that your dictionaries are not nil and that the keys are contained within the dictionary. Also, how is pageToSet generated?

It looks like the pacibsp instruction is a pointer authentication instruction https://developer.arm.com/documentation/dui0801/h/mpg1476202746202

"pageToSet" and "parameterToSet" are passed in as integers. I checked their values when the code crashes and both are valid numbers (pageToSet is 2, parameterToSet is 1, and source is "i "). Next time it blows up I'll try and get the crash log. Here is the whole function:

public func updateParameterStatus(pageToSet: Int, parameterToSet: Int, source: String){

    if  (pageToSet >= 1) && (pageToSet <= 10) && (parameterToSet >= 1) && (parameterToSet <= 20){

        page[pageToSet].parameter[parameterToSet].source = source // this line crashes sometimes on start up for some reason

        if source == "t "{             page[pageToSet].parameter[parameterToSet].isComputed = true         } else {             page[pageToSet].parameter[parameterToSet].isComputed = false         }

               page[pageToSet].parameter[parameterToSet].timeStamp = N777.currentTime.timeIntervalSinceReferenceDate         page[pageToSet].parameter[parameterToSet].isValid = true         page[pageToSet].parameter[parameterToSet].isStale = false

                 if source == "i " || source == "d " {             page[pageToSet].parameter[parameterToSet].isImported = true         } else {             page[pageToSet].parameter[parameterToSet].isImported = false         }

        page[pageToSet].parameter[parameterToSet].hasBeenEntered = true     } }