universal function pointer

#include <iostream>
#include <string>
using std::cout; using std::endl;
using std::string;

template<typename T>
T usqr(T x);

template<typename T>
void print(T whatever);

template<typename T>
    T (*uptr)(T t) = &usqr;

int main(int argc, char* argv[]){
    print(uptr(34));//integer
    print(uptr(39.995));// a float or double
    print(uptr(69440898593));//a long long
    return 0;
}

//universal square root function
template<typename T>
T usqr(T x)
{
    return x*x;
}

template<typename T>
void print(T whatever)
{
    cout<< whatever <<endl;
}