[Dev-C++] problem with iterating vector<string,allocator<string> > in vc++

[bhadram r. <bha...@ya...>]

dear friends,
                The following code is giving error like it cannot find the << convertor for vector<string,allocator<string> > object how to solve this problem. Please help me.
 
Thanking you,
yours sincerely,
bhadram
 
# pragma warning(disable:4786)
# include <textquery2.h>
using namespace bhadram2;
int main()
{
 TextQuery* tq=new TextQuery;
 tq->retrieve_text();
 tq->strip_lines();
 tq->display_word_locations();
 return 0;
}

 
 
 
# include <iostream>
# include <fstream>
# include <string>
# include <algorithm>
# include <vector>
# include <set>
# include <map>
using namespace std;
namespace bhadram2
{
typedef vector<string,allocator<string> > vecString;
typedef pair<short,short> Location;
typedef vector<Location,allocator<Location> > Locations;
typedef pair<vecString*,Locations*> WordLocations; 

class TextQuery
{
private:
 vector<string>* lines_of_text;
 WordLocations* wordLocations;
public:
 retrieve_text();
 display_lines_of_text();
 strip_lines();
 display_word_locations();
};
TextQuery::display_word_locations()
{
 vector<string,allocator<string> >* words=wordLocations->first;
 Locations* locations=wordLocations->second;
 vector<string,allocator<string> >::iterator iter=words->begin();
 while(iter!=words->end())
 {
  cout<<(*words)<<endl;
  iter++;
 }
}
TextQuery::strip_lines()
{
 vector<string,allocator<string> >* words=new vector<string>;
 vector<Location,allocator<Location> >* locations=new vector<Location>;
 vector<string,allocator<string> >::iterator iter=lines_of_text->begin();
 
 
 while(iter!=lines_of_text->end())
 {
  short line_no=0;
  string::size_type pos=0,prev_pos=0;
  line_no++;
  string textline=(*iter);
  cout<<textline;
  iter++;
  short word_cnt=0;
  string word;
  while((pos=textline.find_first_of(' ',prev_pos))!=string::npos)
  {
   word_cnt++;
   word=textline.substr(prev_pos,pos-prev_pos);
   words->push_back(word);
   locations->push_back(make_pair(line_no,word_cnt));
   pos++;
   prev_pos=pos;
  }
  words->push_back(word);
  word_cnt++;
  locations->push_back(make_pair(line_no,word_cnt));
 }
 wordLocations=new WordLocations(words,locations);
}
 

TextQuery::retrieve_text()
{
 lines_of_text=new vector<string,allocator<string> >;
 string file_name;
 cout<<"enter the file name: ";
 cin>>file_name;
 fstream infile(file_name.c_str(),ios::in);
 if(!infile)
  cout<<"not file found"<<endl;
 string textline;
 while(getline(infile,textline,'\n'))
 {
  lines_of_text->push_back(textline);
 }
}
TextQuery::display_lines_of_text()
{
 vector<string,allocator<string> >::iterator iter=lines_of_text->begin();
 while(iter!=lines_of_text->end())
 {
  cout<<(*iter)<<endl;
  iter++;
 }
}
};

		
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