tir, 13 01 2009 kl. 12:36 -0600, skrev Jonathan Kotta:
> Doesn't that always set the value to the default, unless you give it a
> new value?  Then you can't read the current value without making it
> global.

No, but I the syntax regarding persistent variables can be somewhat
confusing. The line

  persistent ml_reffreq = 440;

will be interpreted as: the first time the function is called the
variable will be assigned the value 440. In all subsequent calls to the
function the variable will have whatever value it was given in previous
calls.

If that explanation is confusing, I recommend playing around with
persistent variables to see what happens.

Søren


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