hash_map not reporting true size when used with hash_comp

I have observed that when we use the hash_comp and define our own
comparison function, hash_map::size() always reports the size of 1,
doesn't matter how many elements we add in the map. We have to use the
hash_comp with user defined comparison function to use the key as
char*.

Plz see the code below - let me know if am wrong any where.

// hash_map_size.cpp
// compile with: /EHsc
#define _DEFINE_DEPRECATED_HASH_CLASSES 0
#include <hash_map>
#include <iostream>
#include <string>

using namespace std;
using namespace stdext;

struct eqint
{
    bool operator()(int i1, int i2) const
    {
        if(i1==i2)
            return true ;
        else
            return false ;
    }
};

typedef hash_map<int, int> MYHMAP1;
typedef hash_map<int, int>::size_type MYHMAP_SIZETYPE1;
typedef pair<int, int> Int_Pair;

typedef hash_map<int, int, hash_compare<int, eqint>> MYHMAP2;
typedef hash_map<int, int, hash_compare<int, eqint>>::size_type
MYHMAP_SIZETYPE2;
typedef pair<int, int> Int_Pair;

int main( )
{

    // The following code provides the value of the size as expected 1
and 2
    // Here I am not using the comparison function in the hash_map
definition

    MYHMAP1 phm1;
    MYHMAP_SIZETYPE1 i ;

    phm1.insert(Int_Pair(1, 1));
    i = phm1.size();
    cout << "The hash_map length is " << phm1.size() << "." << endl;

    phm1.insert(Int_Pair(2, 4));
    i = phm1.size();
    cout << "The hash_map length is now " << i << "." << endl;

    // The folling code doesn't provides the value of the size as
expected 1 and 2
    // but it provides the result as 1 and 1
    // Here I am using the comparision function in the hash_map
definition

    MYHMAP2 phm2;
    MYHMAP_SIZETYPE2 j ;

    phm2.insert(Int_Pair(1, 1));
    j = phm2.size();
    cout << "The hash_map length is " << phm2.size() << "." << endl;

    phm2.insert(Int_Pair(2, 4));
    j = phm2.size();
    cout << "The hash_map length is now " << j << "." << endl;
}

Is this bug or I am doing some thing wrong here.

Thanks
-Nilesh