#include <iostream>
#include <string>
#include <vector>

using namespace std;

struct Base {
    string type;
    int av;

    Base () { av = 2; type = "Base"; }
};

struct A : public Base {
    int bv;

    A () { av = 1; bv = 3; type = "A"; }
};

struct database {

    vector <Base*> basev;

    Base* findb (int value) {
        static Base sbase; Base* pbase = &sbase;
        pbase->type = "nothing";

        for (int i = 0; i < basev.size (); ++i) {
            if (basev [i]->av == value) return basev [i];
        }
        return pbase;
    }

} db;


int main() {

    Base* pBase = new Base;
    A* pA = new A;

    pBase->av = 5;
    pA->av = 2;

    db.basev.push_back (pBase);
    db.basev.push_back (pA);

    Base* found = db.findb (2);

    if (found->av > -1) {
        cout << "Found " << found->type << endl;
    }

    delete pBase, pA;

    cout << "\nDone";
}