Sparrow Forum

1. 

   markjsb
   Member

   I'm having a bit of a problem with accessing an Array

   I'm declaring it in the h file

   and then in the init of the implementation I give it the values:

   allowed1 = [[NSArray alloc] arrayWithObjects:@"12",@"13",@"14",@"15",@"16",@"24",@"25",@"26",@"34",@"37",@"35",@"36",@"47",@"45",@"46",@"57",@"56",@"67",nil];
   [allowed1 retain];

   I later on call this function:

   void checkMove (int pos){
       if (lastPos >= pos){
           tempNum = pos*10 + lastPos;
       }else{
           tempNum = lastPos*10 + pos;
       }
       NSLog(@"tempNum %i", tempNum);
       //should now have a string with selection from old Node to the new Node
       canPlay = NO;
       for (int i in allowed1){
           do something
       }
   }

   In this function allowed1 shows up as an undeclared identifier.

   It seems to be some kind of scope issue, but I can't seem to get it right. Any help would be much appreciated.

   Mark

   Posted 1 year ago #
2. 

   freerunnering
   Moderator

   Not sure if this is the problem but I spotted one problem.

   allowed1 = [[NSArray alloc] arrayWithObjects:@"12",@"13",@"14",@"15",@"16",@"24",@"25",@"26",@"34",@"37",@"35",@"36",@"47",@"45",@"46",@"57",@"56",@"67",nil];
   [allowed1 retain];

   It should be either:

   allowed1 = [[NSArray alloc] initWithObjects:@"12",@"13",@"14",@"15",@"16",@"24",@"25",@"26",@"34",@"37",@"35",@"36",@"47",@"45",@"46",@"57",@"56",@"67",nil];

   Or:

   allowed1 = [NSArray arrayWithObjects:@"12",@"13",@"14",@"15",@"16",@"24",@"25",@"26",@"34",@"37",@"35",@"36",@"47",@"45",@"46",@"57",@"56",@"67",nil];
   [allowed1 retain];

   Posted 1 year ago #
3. 

   Shilo
   Master Sparrow

   Freerunnering is correct.

   You will also need to change the for statement since you are passing NSStrings into the NSArray instead of numbers. I personally would use c-arrays.

   Change your for statement to this:

   for (NSString *string in allowed1) {
       int i = [string intValue];
       NSLog(@"i = %i", i);
   }

   Posted 1 year ago #
4. 

   markjsb
   Member

   Thanks for pointing that out to me.

   However the problem still persists. Allowed1 still shows up as an undeclared identifier in my function. So won't compile.

   Really, really appreciate any help on this

   Mark

   Posted 1 year ago #
5. 

   ahnt
   Moderator

   is it possible that you have allowed1 in one class and you try to use it in another one?

   Since the "undeclared identifier" normally points to the fact that you haven't defined that variable for that score?

   Cheers Arend

   Posted 1 year ago #
6. 

   freerunnering
   Moderator

   Is NSArray *allowed1 declared in the .h file? (inside the @interface{ })

   Posted 1 year ago #
7. 

   markjsb
   Member

   Hi Arend

   No it's the same class.

   I've worked out what it was. I'm using the Linda.com video's to get into Objective C. I'd watched an early video on setting up a function, pretty similar to AS3.0, so used that. What I needed to do was set up a method. Once that was declared properly in the h and then set up in the m I was able to access the 'allowed1' array in both, phew.

   In the same time it's taken me to work that out, I had a full working prototype in AS3.0!!

   Appreciate the help everyone it was ALL used and comprehended.

   Mark

   Posted 1 year ago #
8. 

   Shilo
   Master Sparrow

   No problem! AS3 is indeed easier but objective-c has grown on me. You will get used to it in no time.

   Posted 1 year ago #

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