CAST_ functions buffer declaration

From my experience on KSS 8.3, the buffer array of the CAST_ functions must be locally declared.

So, for example, this code will result in a compiler error:

DEF ExampleError( notLocalBuffer :IN )
    DECL CHAR notLocaBuffer[]
    DECL INT offset, aInt

    offset = 0
    CAST_FROM( notLocalBuffer[], offset, aInt )
END

while, this will give no error

DEF ExampleOk( notLocalBuffer :IN )
    DECL CHAR notLocaBuffer[], localBuffer[4]
    DECL INT offset, aInt
    DECL BOOL res

    res = strCopy(localBuffer[], notLocalBuffer[])
    offset = 0
    CAST_FROM( localBuffer[], offset, aInt )
END

The same happens with CAST_TO.

Nothing changes if the buffer is declared as a global variable or if the buffer is passed by reference ( :OUT ).

Does anyone know why?

Are there other ways to use the CAST_ functions with not locally defined arrays?

Thank you for the help

Quote from dexterv

FYI there is a typo, you have notLocaBuffer[] and notLocalBuffer[]

Yes, sorry for the typo

Quote from SkyeFire

What compiler error, specifically? At which line? Details matter.

At the line with the CAST_ command, the error is "Array index exceeds array limits".

I attach a screenshot with the code and the error as displayed on the pendant.

Quote from SkyeFire

DEF ExampleError( notLocalBuffer[] :IN )

The brackets in the definition of the input array do not affect the problem. The same error persist even with the brackets. as you can see in the attacched image (left side).

Quote from panic mode

so how about those details...? how and where is everything declared and initialized?

My goal is to have a procedure that takes in input a char array of variable lenght and perform a CAST_TO or a CAST_FROM using this array as buffer.

The example i reported is defined in a file .src with the same name of the procedure, located in a subfolder of KRC:\R1.

In this particular case the procedure I am showing in the snaps is named "test_cast" and is written in the file "test_cast.src", located in "KRC:\R1\test" folder.

I also tryed to declare a function instead of a procedure, as shown in the image (right side), but the error persist.

Thank you for your help

Quote from panic mode

[...] i am talking about variables PASSED TO your sub or function when your sub or function are called.

Here I hope to give you a better example, also with external variable initialized.

DEF test_module ( )
DECL CHAR myBuffer[12]
DECL INT myInt1, myInt2, myInt3
DECL INT offset


; Initialize ints
myInt1 = 10
myInt2 = 20
myInt3 = -30


; Cast to myBuffer
offset = 0
CAST_TO(myBuffer[], offset, myInt1, myInt2, myInt3) ; this works as the buffer array is defined locally


; Cast from buffer using a subprogram
castFromInSubprogram(myBuffer[])


END


DEF castFromInSubprogram( aBuffer[]:IN )
DECL CHAR aBuffer[]
DECL INT aInt1, aInt2, aInt3
DECL INT offset


offset = 0
CAST_FROM(aBuffer[],offset, aInt1, aInt2, aInt3) ; this does not work. Error: "Array index exceeds array limits"

END

All the code above is contained in one single module.

The error persist if I move the declaration of the char array "myBuffer" in the .dat file of the module.

Thank you again for your time

Quote from panic mode

[...] but clearly CAST_FROM() cannot handle it.

The same applies to CAST_TO().

Quote from panic mode

[...] problem seem to be only when passing buffer as a as parameter. [...]

Yes. Not only, as you suggesteded, the problem can be avoided declaring the buffer in the local DAT file but also if you declare the buffer as a GLOBAL variable and then using it directly in any subprogram, still without passing it as a parameter.

Thank you very much for the help