Find value by key : map find « map multimap « C++ Tutorial

1. C++ Tutorial
2. map multimap
3. map find

#include <map>
#include <iostream>
#include <string>

using namespace std;
typedef map<int, string> INT2STRING;

int main(void){
   INT2STRING theMap;
   INT2STRING::iterator theIterator;
   string theString = "One, Two";
   int index= 1;

   theMap.insert(INT2STRING::value_type(0,"Zero"));
   theMap.insert(INT2STRING::value_type(1,"One"));
   theMap.insert(INT2STRING::value_type(2,"Two"));
   theMap.insert(INT2STRING::value_type(3,"Three"));
   theMap.insert(INT2STRING::value_type(4,"Four"));
   theMap.insert(INT2STRING::value_type(5,"Five"));
   theMap.insert(INT2STRING::value_type(6,"Six"));
   theMap.insert(INT2STRING::value_type(7,"Seven"));
   theMap.insert(INT2STRING::value_type(8,"Eight"));
   theMap.insert(INT2STRING::value_type(9,"Nine"));


   for( index = 0; index < theString.length(); index++){
      theIterator = theMap.find(theString[index] - '0');
      if(theIterator != theMap.end())      // is 0 - 9
        cout << (*theIterator).second << " ";
      else                // not 0 - 9
        cout << "[err] ";
   }
 }