Hash Map

[ilknur]

Hi,i have the following code to find the frequences of same words in a file.i used hashmap for this purpose but when i run the code, it enters a infinite loop.when i debug the code,i see that the iter variable is not incremented at the end of each loop.Can anyone help me with this problem?Thanks a lot.

#include <iostream.h>
#include<fstream.h>
#include <ext/hash_map>
#include <string.h>
#define HASH __gnu_cxx
using namespace std;
using std::string;
 
HASH::hash_map <const char*,int> roots;
 
int main() {
 
    string line;
    char * lineChar;
    int word_freq;
 
    fstream rootCorpusFile("deneme.txt",ios::in);
    if(rootCorpusFile.is_open()){
        while(!rootCorpusFile.eof()){
 
            getline(rootCorpusFile,line);
            cout<<"Line is "<<line<<"\n";
             lineChar=(char*)line.c_str();           
 
             cout<<"LineChar is "<<lineChar<<"\n";
            if((word_freq=roots[lineChar])!=NULL){
                cout<<"Word "<<lineChar<<" Freq "<<word_freq;
                word_freq++;
                roots[lineChar]=word_freq;
            }
            else{
                roots[lineChar]=1;
            }
        }
 
    }
    else{
        cout<<"File can not be openned!/n";
    }
 
 
HASH::hash_map <const char*,int>::iterator iter;
 
for (iter = roots.begin(); iter != roots.end(); iter++) {
    std::string key, value;
    key = iter->first;
    value = iter->second;
    cout<<"Key "<<key<<" Value"<<value<<"\n";
 
}
 
    rootCorpusFile.close();
    return 0;
}
 
 
 
ilknur