#include <iostream>#include <fstream>#include <cctype>#include <cstring>#include <cstdlib> // exit()#include "genSplay.h"using namespace std;class Word {public:    Word() {        freq = 1;    }    int operator== (const Word& ir) const {        return strcmp(word,ir.word) == 0;    }    int operator< (const Word& ir) const {        return strcmp(word,ir.word) < 0;    }private:    char *word;    int freq;    friend class WordSplay;};class WordSplay : public SplayTree<Word> {public:    WordSplay() {        differentWords = wordCnt = 0;    }    void run(ifstream&,char*);private:    int differentWords, // counter of different words in a text file;        wordCnt;        // counter of all words in the same file;    void visit(SplayingNode<Word>*);};void WordSplay::visit(SplayingNode<Word> *p) {    differentWords++;    wordCnt += p->info.freq;}void WordSplay::run(ifstream& fIn, char *fileName) {    char ch = ' ', i;    char s[100];    Word rec;    while (!fIn.eof()) {        while (1)            if (!fIn.eof() && !isalpha(ch)) // skip nonletters                 fIn.get(ch);            else break;        if (fIn.eof())       // spaces at the end of fIn;             break;        for (i = 0; !fIn.eof() && isalpha(ch); i++) {             s[i] = toupper(ch);             fIn.get(ch);        }        s[i] = '\0';        if (!(rec.word = new char[strlen(s)+1])) {             cerr << "No room for new words.\n";             exit(1);        }        strcpy(rec.word,s);        Word *p = search(rec);        if (p == 0)             insert(rec);        else p->freq++;    }    inorder();    cout << "\n\nFile " << fileName         << " contains " << wordCnt << " words among which "         << differentWords << " are different\n";}int main(int argc, char* argv[]) {    char fileName[80];    WordSplay splayTree;    if (argc != 2) {         cout << "Enter a file name: ";         cin  >> fileName;    }    else strcpy(fileName,argv[1]);    ifstream fIn(fileName);    if (fIn.fail()) {        cerr << "Cannot open " << fileName << endl;        return 1;    }    splayTree.run(fIn,fileName);    fIn.close();    return 0;}