From: Brad Stone 
Subject: recursive function
 
Hi-
 
  I'm using VB4/16 bit and I have PB DLL compiler 1.5.
 
  I have an old expression evaluator that Ethan Winer wrote ten years
ago.  It's a recursive function.  You give it an expression like
"45>SQR(4) AND 33<2" and it returns if it is true or not.  I put it in a
PB DLL and it works!  But it gets progressively slower each time I call
it.  If my database contains 20,000 data points then I call this thing
20,000 times.  It's always correct, but toward the end it may take 5 to
10 times as long as the first few calls!
 
Thanks for any ideas,
Brad Stone (salinon1@airmail.net)
 
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