Hi!

I want to pass a array of strings throught a function and that function is going to return back the array. So I need to use pointers for that.

Let's keep it simple!
I first have my array:

myStrArray: ARRAY[0..10] OF STRING;

Then I need to convert myStrArray to a pointer.

p_myStrArray: POINTER := ADR(myStrArray);

Then I need to pass p_myStrArray throught my function

p_returnArray := myFunc(p_myStrArray);
(*....*)
FUNCTION myFunc: POINTER
VAR_INPUT
   p_myStrArray: POINTER;
END_VAR
VAR
END_VAR
myFunc := p_myStrArray; // Return statement

And then recive my pointer and turn it back to an array

returnArray: ARRAY[0..10] OF STRING;
returnArray := p_returnArray^;

But it won't work for me. What have I missed?

Wrap your array with an fb and pass the fb to the funtion as varinout. Or better, the funtion could be an method of the fb.

If not, you don t know from inside the funtion array dimension.

Originally created by: rickj

I didn't know the compiler would allow this

FUNCTION myFunc: POINTER
VAR_INPUT
   p_myStrArray: POINTER;
END_VAR

Maybe try this instead

FUNCTION myFunc: POINTER  ARRAY[0..10] OF STRING
VAR_INPUT
   p_myStrArray: POINTER  ARRAY[0..10] OF STRING;
END_VAR[/quote]

Then when you call the function you may try this

VAR
    MyStrArray: ARRAY[0..10] OF STRING;
    PtrReturnArray : POINTER TO ARRAY[0..10] OF STRING;
END_VAR
PtrReturnArray := myFunc(ADR(MyStrArray));