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Reading instream data into a map

Posted on 2004-09-20
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Last Modified: 2010-04-01
Hello,

I am attemping to read data from a file into a map.  The only examples I find are strings hard coded into a Map.

#include <iostream>
#include <map>
#include <string>
#include "H:\440.h"
using namespace std;

int main()
{
    typedef map<string,unsigned> myMap;
   
    myMap s;
      string word;
      
      //int i = 0;
      //string array[300];
      
      for (int i = 0; i < 300; i++)
      {
      
         cin >> word;
                   cout << s[i]->first = word;
                }

}

I have no idea what I'm doing.....
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Comment
Question by:nothing8171
  • 2
3 Comments
 
LVL 1

Author Comment

by:nothing8171
ID: 12108826
I'm sorry...it's not actually data....they are strings.
0
 
LVL 11

Accepted Solution

by:
avizit earned 500 total points
ID: 12108956
following should give you a hint , in a map you have to associate a  value with each key , so here in this case i have taken a string  as the key , and the counter i's value as the value , i am storing the string and the value in the map and later displaying it

include <iostream>
#include <map>
#include <string>
using namespace std;

int main()
{
  typedef map<string,unsigned> myMap;

  myMap s;
  string word;

  for (int i = 0; i < 5; i++){
    cin >> word;
    s[word]=i;
  }

  myMap::iterator itr;
  for(itr = s.begin(); itr != s.end(); itr++){
    cout<<"string:"<<itr->first<<" key:"<<itr->second<<endl;
  }

}

0
 
LVL 1

Author Comment

by:nothing8171
ID: 12109201
Excellent!  Thank you so much!!!
0

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