Computer Science Canada

Changing upper bound of flexible array inside of a procedure
Author:  jQwotos [ Mon Mar 06, 2017 1:03 pm ]
Post subject:  Changing upper bound of flexible array inside of a procedure
What is it you are trying to achieve?
Is it possible to change the upper bound of a flexible array inside of a procedure when it is passed as a variable argument?
In addition, is it possible to declare a flexible array inside of a record?
What is the problem you are having?
I can't change the upper bound of a flexible array inside of a procedure.
I know we can pass a flexible array into a procedure by doing this
code:

procedure example(var list: array 1 .. * of typeSec)
end example

But I want to do something like this
code:

procedure example(var list: array 1 .. * of typeSec)
     new list, 10
end example

Please specify what version of Turing you are using
OpenTuring V1.2.0 beta (Running in Wine on a Mac)
Author:  pttptppt [ Mon Mar 06, 2017 10:25 pm ]
Post subject:  RE:Changing upper bound of flexible array inside of a procedure
I could be very wrong as Im a complete noob. But Im pretty sure the first example is not actually a flexible array.
From what Ive used in flexible arrays, the format is like:
var list: flexible array 1 .. 0 of typeSpec

and then
new list, 10

I have never done that by putting it in a procedure parameters like that but you could get around that very easily, though not as efficiently.

Perhaps if you share what your trying to accomplish, I can provide an alternative? Otherwise hope someone from this inactive forum site responds!
Author:  jQwotos [ Mon Mar 06, 2017 10:29 pm ]
Post subject:  RE:Changing upper bound of flexible array inside of a procedure
this would be my deceleration and procedure
code:

var list: flexible array 1 .. 9 of typeSec

procedure modify_array(var list: array 1 .. * of typeSec)
     new list, upper(list) + 1
     % do stuff
end modify_array

because turing doesn't like
code:

procedure modify_array(var list: flexible array 1 .. * of typeSec)
     new list, upper(list) + 1
     % do stuff
end modify_array

because it won't accept "flexible" when trying to pass it into the procedure
Author:  Insectoid [ Thu Mar 09, 2017 12:38 pm ]
Post subject:  RE:Changing upper bound of flexible array inside of a procedure
Turing is incomplete and flexible arrays are one of the features that was never completely implemented. I recommend avoiding them, and just using large fixed-length arrays instead.

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