Use while to loop through a map : map iterator « Map Multimap « C++





Use while to loop through a map

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

using namespace std;

typedef map<string, int> STRING2INT;

int main(void)
{
    STRING2INT DateMap;
    STRING2INT::iterator DateIterator;
    string DateBuffer;

    DateMap["January"] = 1;
    DateMap["February"] = 2;
    DateMap["March"] = 3;
    DateMap["April"] = 4;
    DateMap["May"] = 5;
    DateMap["June"] = 6;
    DateMap["July"] = 7;
    DateMap["August"] = 8;
    DateMap["September"] = 9;
    DateMap["October"] = 10;
    DateMap["November"] = 11;
    DateMap["December"] = 12;

    DateIterator = DateMap.end();
    while(DateIterator == DateMap.end())
     {
        cout << "Enter a Month :";
        cin >> DateBuffer;
        if((DateIterator = DateMap.find(DateBuffer)) != DateMap.end())
            cout << (*DateIterator).first << " is Month Number "
                 << (*DateIterator).second << endl;
        else
            cout << "Enter a Valid Month (example: March)" << endl;
     }

}
  
    
  










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