On 2/22/15, 1:19 PM, "John MacFrenz" <[email protected]> wrote:

>I was thinking of the latter approach. Also a generic ring buffer
>implementation would be useful in cases like this. I almost started
>writing one, storing in array N elements of type T. However, I couldn't
>figure a way to write a method getCurrent(), which would return current
>element in buffer, so that it would always return a reference. Or any
>other clever way so user could always modify the current element in ring
>buffer.


Does the ref return intent work for you?
As in this example program (which I've verified compiles and runs):

var A = [1,2,3,4,5];


proc element(i:int) ref
{
  return A[i];
}


writeln(A);
element(1) = 10;
writeln(A);




Or is there some reason that the ref return intent does not
solve the problem?

Best,

-michael


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