Swift append Array in For Loop - ios

Question

let me start with the code:
var lat1:CLLocationDegrees = 50.102760
var lat2:CLLocationDegrees = -26.135170
.
.
.
var lat191:CLLocationDegrees = 60.289139
var LocCount = 191
for var iLat = 3; iLat == LocCount; ++iLat{
AirportLat.append("lat" + iLat)
}
What i try is go to count up the name of the var that should be appended to my array is there a way to do this?

Answer 1

Well, that's a difficult way to do it.
How about:
var latArray = <CLLocationDegrees>()
latArray += [50.102760]
latArray += [-26.135170]
.
.
.
latArray += [60.289139]
println("LocCount check = \(latArray.count)")
A better still way to do it would be to put the latitudes into a file (so you can change them, add to them, etc. without recompiling your code) and read them in, but I'll leave that as an exercise...
...and if you want to use the other answer's dictionary idea, you can add
for i in 0 ..< latArray.count {
dict["lat\(i+1)"] = latArray[i]
}

Answer 2

First off its not good practice to define 191 variables. Use Dictionary instead where keys are: lat1, lat2 .... lat191.
After that you can loop over Dictionary values and manipulate with them.
But if you still want to aggregate all variables to Array you can use class_copyIvarList to fetch all variables start with lat and write as:
class Myclass : NSObject{
var lat1:CLLocationDegrees = 50.102760
var lat2:CLLocationDegrees = -26.135170
var lat3:CLLocationDegrees = 60.289139
var AirportLat:Array<CLLocationDegrees> = []
func fetchValues() -> Array<CLLocationDegrees>{
var aClass : AnyClass? = self.dynamicType
var propertiesCount : CUnsignedInt = 0
let propertiesInAClass : UnsafeMutablePointer<Ivar> = class_copyIvarList(aClass, &propertiesCount)
for var i = 0; i < Int(propertiesCount); i++ {
var propName:String = NSString(CString: ivar_getName(propertiesInAClass[Int(i)]), encoding: NSUTF8StringEncoding)
var propValue : AnyObject! = self.valueForKey(propName)
if propName.hasPrefix("lat") {
AirportLat.append(propValue as CLLocationDegrees)
}
}//for
return AirportLat
}
}
var cc = Myclass()
cc.fetchValues()
Output:
[50.10276, -26.13517, 60.289139]
Comment: the class must inherit NSObject