Incorrect output.

==============PLEASE NOTE THAT THIS IS A CONTINUATION OF THE PROBLEM at:
https://www.experts-exchange.com/questions/21180841/STDIN-STDOUT-STDERR.html
for this reason i prefer to stay in this forum although all the code is mostly C++:
===========================================================
Instead of print a string i am printing a negative num. why?

================= wc.h from file==============================

class wc
{
 public:
  typedef  map<std::string, int> datastructure_type;
  typedef  datastructure_type::iterator iterator;

  //  void display();
  //  void read(ifstream & f);
  void read(istream & f);
  void mostCommonWord();
  void display(map<std::string, int>::iterator,
                      map<std::string, int>::iterator);

  int getTotalCount()const {return totalCount;}
  int getDistinctCount() const {return distinctCount;}
  int getMostCommonCount()const {return theMostCommonCount;}
  std::string getMostCommonWord()const { return themostCommonWord;} <===========here is the call
  void helpMenu();
  iterator begin() {return words.begin();}
  iterator end(){ return words.end();}

 private:
  datastructure_type words;
  int totalCount;
  int distinctCount;
  int theMostCommonCount;
  std::string themostCommonWord;
};
==============================read( ) and ... ===========================
void wc::read(istream &f)
{
   std::string word;
   int count = 0;

   //   f->seekg(0, ios::beg);
   f.seekg(0, ios::beg);
   f >> word;
   //  f >> word;

     //cout<<"Reading from file...\n"; //prompting

  //  while(f.peek() != EOF){
   //   while(f>>word){
     while(!f.eof()){
    removePunc(word);

if(passWordTest(word)){
  if( words.find(word) == words.end()  )
   words[word] = 0; //word is not in map set it count to 0 for the first time.
 words[word]++; //word is there, increment its count.
 count++; //count the number of word stored.

}
 f >> word;
}
  if(words.size() == 0)
{
  std::cout<<"File failed to open\n";
  exit(0);
}
std::cout<<endl;
  totalCount = count;
  distinctCount = words.size();
}

=======================wc::mostCommonWord()===================

void wc::mostCommonWord()
{
  map<std::string, int>::iterator itr = words.begin();
  map<std::string, int>::iterator last = words.end();

  std::string maxWord = itr->first;
  int max = itr->second;
  int saveMax = itr->second;

  itr++;
  while(itr != last)
    {
      if(itr->second > max)
      {
          max = itr->second;
          maxWord = itr->first;
      }
        itr++;
    }
  if(max == saveMax){
    std::cout<<"Conflict or no most commonly word found\n";
    exit(0);
  }

  themostCommonWord = maxWord;
  theMostCommonCount = max;
}