[PD-dev] [ pure-data-Bugs-1996275 ] [change] lets some duplicates thru

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Bugs item #1996275, was opened at 2008-06-17 12:38
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: puredata
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Hans-Christoph Steiner (eighthave)
Assigned to: Nobody/Anonymous (nobody)
Summary: [change] lets some duplicates thru

Initial Comment:
Sometimes some duplicates get through [change] since it is doing a != for the comparison.  Instead it should do a  comparison with a set precision, something like this:

http://howto.wikia.com/wiki/Howto_compare_float_numbers_in_the_C_programming_language

//compares if the float f1 is equal with f2 and returns 1 if true and 0 if false
 int compare_float(float f1, float f2)
 {
  float precision = 0.00001;
  if (((f1 - precision) < f2) && 
      ((f1 + precision) > f2))
   {
    return 1;
   }
  else
   {
    return 0;
   }
 }

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You can respond by visiting: 
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