SaveVars(integer,string,integer) unordered_map

#include <iostream>
#include <string>
#include <tuple>
#include <utility>
#include <unordered_map>

typedef std::tuple<std::string,int> key_t;

struct key_hash : public std::unary_function<key_t, std::size_t>
{
   std::size_t operator()(const key_t& k) const
   {
      return std::get<0>(k)[0] ^ std::get<1>(k);
   }
};
struct key_equal : public std::binary_function<key_t, key_t, bool>
{
   bool operator()(const key_t& v0, const key_t& v1) const
   {
      return (
               std::get<0>(v0) == std::get<0>(v1) &&
               std::get<1>(v0) == std::get<1>(v1)
             );
   }
};



class playervars {
private:
    typedef std::unordered_map<key_t,int,key_hash,key_equal> variable_i;
    variable_i vari;
    int numero;
public:
    void SetInt(int playerid, std::string nomevar,int valor) {
        vari[std::make_tuple(nomevar,playerid)] = valor;
    }
    int GetInt(int playerid, std::string nomevar) {
        auto itr = vari.find(std::make_tuple(nomevar,playerid));
        if (vari.end() != itr)
        {
            return itr->second;
        }
    }
};

playervars PVar;

int main()
{
    PVar.SetInt(5,"carro",10);

    std::cout << PVar.GetInt(5,"carro") << std::endl;


    system("pause");
    return 0;
}