What will happen when you attempt to compile and run the following code?

What will happen when you attempt to compile and run the following code?

#include

using namespace std;

class C {};

template

class A {

T_v;

public:

A() {}

A(T v): _v(v){}

T getV() { return _v; }

void add(T a) { _v+=a; }

};

int main()

{

A b;

Aa;

a.add(C());

cout << b.getV() <

return 0;

}