occurrences.hh

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    FAUST compiler
    Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
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#ifndef __OCCURENCES__
#define __OCCURENCES__

#include "tlib.hh"

class Occurrences
{
    Tree    fKey;                   // specific property key

 public:
    Occurrences(Tree root);         // count the occurrences of each subtree of root
    int getCount(Tree t);           // return the number of occurrences of t in root

 private:
    Tree specificKey(Tree root);    // specific key for occurences counting in root
    void countOccurrences(Tree t);  // increment the occurrences of t and its subtrees
    void setCount(Tree t, int c);   // set the number of occurrences of t
};

#endif