Question

How do I fix my error of binding on line 74?

#include <iostream>
#include <fstream>
#include <cctype>
#include <cstring>
#include <iomanip>
using namespace std;
#include "AvlTree.h"
class WordCount
{
public:
    char *word;
    int *lines;
    int count;
    int size;
    bool operator<(const WordCount &rhs) const {return strcmp(word, rhs.word) < 0;}
    bool operator!= (const WordCount &rhs) const {return strcmp(word, rhs.word) != 0;}
    WordCount():lines(NULL), count(0), size(0) {word = new char[1]; word[0] = '\0';}
    friend ostream& operator<< (ostream &os, const WordCount &rhs);
    WordCount& operator= (const WordCount &rhs)
    {
      if(this == &rhs)
        return *this;
    
      delete[] word;
      word = new char[strlen(rhs.word) + 1];
      strcpy(word, rhs.word);
      delete[] lines;
      lines = new int[rhs.size];
      for(int i = 0; i < rhs.count; i++)
        lines[i] = rhs.lines[i];
      
      count = rhs.count;
      size = rhs.size;
    
      return *this;
    } // operator=
};

ostream& operator<< (ostream &os, const WordCount &rhs)
{
os << setw(18) << left << rhs.word << rhs.count << "   ";
for(int i = 0; i < rhs.count - 1; i++)
    os << rhs.lines[i] << ',';

os << rhs.lines[rhs.count - 1];
return os;
}

void readFile(const char *filename, AvlTree <WordCount> &tree)
{
int lineCount = 1;
char *ptr, *ptr2, line[10000];
WordCount word, word2;
word2.word = new char[10000];
ifstream inf(filename);

while(inf.getline(line, 10000))
{
    for(ptr = line; *ptr && !isalpha(*ptr); ptr++);
  
    while(*ptr)
    {
    
      for(ptr2 = ptr; isalpha(*ptr2); ptr2++)
        *ptr2 = tolower(*ptr2);
    
      char temp = *ptr2;
      *ptr2 = '\0';
    
      if(strlen(ptr) > 0)
      {
        strcpy(word2.word, ptr);
        WordCount &tempWord = tree.find(word2);
      
        if(tempWord.word[0] != '\0')
        {
          if(tempWord.count == tempWord.size)
          {
            int *tempLine = new int[tempWord.size * 2];
          
            for(int i = 0; i < tempWord.count; i++)
              tempLine[i] = tempWord.lines[i];
          
            delete [] tempWord.lines;
            tempWord.lines = tempLine;
            tempWord.size *= 2;
          } // if we need to resize the lines
        
          tempWord.lines[tempWord.count++] = lineCount;
        }
        else // word not in tree
        {
          word.word = new char[strlen(ptr) + 1];
          strcpy(word.word, ptr);
          word.lines = new int[10];
          word.count = 1;
          word.size = 10;
          word.lines[0] = lineCount;
          tree.insert(word);
        }
      
      } // if a real word
      
      *ptr2 = temp;
      for(ptr = ptr2; *ptr && !isalpha(*ptr); ptr++);
    
    } // while more in line
  
    lineCount++;
} // while more lines
} // readFile()

int main(int argc, char** argv)
{
WordCount word;
AvlTree <WordCount> tree(word);
readFile(argv[1], tree);
tree.printTree();
return 0;
} // main())

Answer 1

#include <iostream>
#include <fstream>
#include <cctype>
#include <cstring>
#include <iomanip>
using namespace std;
#include "AvlTree.h"
class WordCount
{
public:
    char *word;
    int *lines;
    int count;
    int size;
    bool operator<(const WordCount &rhs) const {return strcmp(word, rhs.word) < 0;}
    bool operator!= (const WordCount &rhs) const {return strcmp(word, rhs.word) != 0;}
    WordCount():lines(NULL), count(0), size(0) {word = new char[1]; word[0] = '\0';}
    friend ostream& operator<< (ostream &os, const WordCount &rhs);
    WordCount& operator= (const WordCount &rhs)
    {
      if(this == &rhs)
        return *this;
    
      delete[] word;
      word = new char[strlen(rhs.word) + 1];
      strcpy(word, rhs.word);
      delete[] lines;
      lines = new int[rhs.size];
      for(int i = 0; i < rhs.count; i++)
        lines[i] = rhs.lines[i];
      
      count = rhs.count;
      size = rhs.size;
    
      return *this;
    } // operator=
};

ostream& operator<< (ostream &os, const WordCount &rhs)
{
os << setw(18) << left << rhs.word << rhs.count << "   ";
for(int i = 0; i < rhs.count - 1; i++)
    os << rhs.lines[i] << ',';

os << rhs.lines[rhs.count - 1];
return os;
}

void readFile(const char *filename, AvlTree <WordCount> &tree)
{
int lineCount = 1;
char *ptr, *ptr2, line[10000];
WordCount word, word2;
word2.word = new char[10000];
ifstream inf(filename);

while(inf.getline(line, 10000))
{
    for(ptr = line; *ptr && !isalpha(*ptr); ptr++);
  
    while(*ptr)
    {
    
      for(ptr2 = ptr; isalpha(*ptr2); ptr2++)
        *ptr2 = tolower(*ptr2);
    
      char temp = *ptr2;
      *ptr2 = '\0';
    
      if(strlen(ptr) > 0)
      {
        strcpy(word2.word, ptr);
        WordCount &tempWord = tree.find(word2);
      
        if(tempWord.word[0]!= '\0')
        {
          if(tempWord.count == tempWord.size)
          {
            int *tempLine = new int[tempWord.size * 2];
          
            for(int i=0; i< tempWord.count; i++)
              tempLine[i] = tempWord.lines[i];
          
            delete[] tempWord.lines;
            tempWord.lines = tempLine;
            tempWord.size *= 2;
          } // if we need to resize the lines
        
          tempWord.lines[tempWord.count++] = lineCount;
        }
        else // word not in tree
        {
          word.word = new char[strlen(ptr) + 1];
          strcpy(word.word, ptr);
          word.lines = new int[10];
          word.count = 1;
          word.size = 10;
          word.lines[0] = lineCount;
          tree.insert(word);
        }
      
      } // if a real word
      
      *ptr2 = temp;
      for(ptr = ptr2; *ptr && !isalpha(*ptr); ptr++);
    
    } // while more in line
  
    lineCount++;
} // while more lines
} // readFile()

int main(int argc, char** argv)
{
WordCount word;
AvlTree <WordCount> tree(word);
readFile(argv[1], tree);
tree.printTree();
return 0;
} // main())