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annotate anagram/support/agbaltree.h @ 6:607e3be6bad8

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Adjust to the moving target called the C++ standard. Apparently nowadays it's not allowed to define an explicit copy constructor but not an assignment operator. Consequently, defining the explicit copy constructor in terms of the implicit/automatic assignment operator for general convenience no longer works. Add assignment operators. Caution: not tested with the IBM compiler, but there's no particular reason it shouldn't work.
author David A. Holland
date Mon, 30 May 2022 23:46:22 -0400
parents 13d2b8934445
children
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1 /**********************************************************
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2
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3 The AnaGram Class Library
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4
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5 The AgBalancedTree Class
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6 Copyright 1997 Parsifal Software. All Rights Reserved.
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7 See the file COPYING for license and usage terms.
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8
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9 ***********************************************************/
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10
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11 #ifndef AGBALTREE_H
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12 #define AGBALTREE_H
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13
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14 #include <stdlib.h>
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15 #include "port.h"
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16
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17 #include "agcontainer.h"
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18
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19
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20 template <class T>
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21 class AgBalancedTree : public AgIndexedContainer<T> {
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22 public:
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23
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24 // Define Node
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25 class Node {
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26 public:
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27 Node *left, *right;
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28 T data;
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29 unsigned count;
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30 Node (const T &t);
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31 ~Node();
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32 void resetCount();
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33 T &locate(const unsigned x) const;
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34 void *operator new(size_t);
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35 void operator delete(void *);
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36 };
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37
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38 Node *root;
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39 virtual int compare(const T &x, const T &y) const;
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40
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41 // Process methods
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42 int insert(const T &target, Node *&node);
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43 int identify(T &target, Node *&node);
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44 int identify(T *&target, Node *&node);
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45 int remove(const T &target, Node *&node);
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46 int includes(const T &target, Node *node) const;
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47 int lookup(T &target, Node *node) const;
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48
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49 void rotateLeft(Node *&node);
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50 void rotateRight(Node *&node);
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51
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52 Node *extractMin(Node *&node);
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53 Node *extractMax(Node *&node);
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54
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55 // default comparison function
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56
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57 public:
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58 AgBalancedTree() : AgIndexedContainer<T>(), root(0) {}
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59 virtual ~AgBalancedTree();
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60 int insert(const T &t);
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61 int identify(T &t);
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62 int identify(T *&t);
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63 int remove(const T &t);
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64 int includes(const T &t) const;
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65 int lookup(T &t) const;
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66 AgBalancedTree<T> &reset();
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67 unsigned size() const;
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68 void *operator new(size_t n) { return malloc(n); }
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69 void operator delete(void *p) { free(p); }
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70 const T &operator [] (const unsigned x) const { return root->locate(x); }
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71 T &operator [] (const unsigned x) { return root->locate(x); }
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72 AgBalancedTree<T> operator + (AgBalancedTree<T> &x);
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73 AgBalancedTree<T> operator * (AgBalancedTree<T> &x);
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74 AgBalancedTree<T> &operator *= (AgBalancedTree<T> &x);
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75 AgBalancedTree<T> operator - (AgBalancedTree<T> &x);
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76 int operator < (const AgBalancedTree<T> &) const;
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77 };
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78
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79
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80 #endif /* AGBALTREE_H */