Dev - C++ - map::map no retiene datos al llamar la funcion de la clase que lo contiene

#include <iostream>

#include <map>

#include <string>

class Var{

    private:

        map<string, string> varmap;

    public:

        void setVar(string name, string type, string value);

        string getVar(string name);

};

void Var::setVar(string name, string type, string value){

    varmap.insert({name, value});

}

string Var::getVar(string name){

    string bufferOut;

    bufferOut = varmap[name];

    return bufferOut;

}

std::varmap.insert(pair<string, string>(name, value));

std::varmap.insert(pair<string, string>(name, value));

#include <iostream>

#include <map>

#include <string>

using namespace std;

class Var

{

    private:

        map<string, string> varmap;

    public:

        void setVar(string name, string value);

        string getVar(string name);

};

void Var::setVar(string name, string value)

{

    varmap.insert(pair<string, string>(name, value));

}

string Var::getVar(string name)

{

    string bufferOut;

    bufferOut = varmap[name];

    return bufferOut;

}

int main()

{

    Var v;

    v.setVar("uno", "dos");

    cout << "\nValue: " << v.getVar("uno") << endl;

    return EXIT_SUCCESS;

}

string Var::getVar(string name)

{

    return varmap[name];

}

void set(string name, value){

    Var v;

    v.setVar(name, value);

}

void get(string name){

    Var v;

    v.getVar(name);

}

enum ID

{

	Uno,

	Dos,

	Tres,

	Elements

}

mymap.insert(pair<int, string>(0, "dato"));

....

return mymap[Uno]; 		// devuelve dato