Re: Explanation for behavior

Hi,

I have the below code for printing out the contents of a map.
The output prints the strings contained in the value for each key in
the map.
In the first for loop, I am clearing the list contents and I am
storing the reference to the list in each of the map's entries.
Could somebody let me know as to why even after clearing the contents
of the list, I can see different strings contained in the map for each
key?

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

int main() {
   typedef list<string> tslist;
   tslist slist;
   map<int, tslist> tmap;
   int i = 0, j =0;
   for (; i < 10; i++) {
           slist.clear();
           char str[10];
           itoa(i, str, 10);
           slist.push_front(string(str));
           tmap[i] = slist;
   }

   i = 0;
   for (; i < 10; i++) {
           tslist temp = tmap[i];
           tslist::iterator iter = temp.begin();
           while(iter!=temp.end()) {
                   string& temp = *iter;
                   cout << temp.c_str() << endl;
                   iter++;
           }
   }
   return 0;
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