Persistent Variables during recursion
pete at mollysrevenge.com
Thu Jan 26 14:50:07 CST 2012
You need to pass the persistent variables as parameters to the recursive
function. When you call the function for the first time, just make sure
the variables are empty, then when you call it from within itself, they'll
get passed with whatever the values are at the time of the call.
On Thu, Jan 26, 2012 at 12:04 PM, Bob Sneidar <bobs at twft.com> wrote:
> Hi all. This is my first foray into recursive functions. There are two
> variables I would like to be persistent for as long as the script is
> running, but I want them to be empty the first time I call the recursive
> function. I have tried declaring the variables as local, but each time the
> function calls itself, the variables are wiped as though a new set is made.
> If I declare them as global, then of course the value persists even after
> the last recursion terminates. The function has no idea if it is the first
> time through or one of the iterations. Any idea how to get around this?
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