11.cpp

// Compile this with C++11: -std=c++11

#include <utility>
#include <iostream>
#include <vector>
#include <tuple>
#include <numeric>
#include <functional>

using namespace std;

typedef int (*FType)(int);

int runtime(const vector<FType>& fv)
{
    // do something
    return fv.size();
}

template<typename ... T>
int runtime_wrapper(T&& ... args)
{
    vector<FType> v = { std::forward<T>(args)... }; // perfect forwarding
    return runtime(v);
}


int f1(int) {}
int f2(int) {}

int main()
{
    cout << runtime_wrapper(f1) << endl;
    cout << runtime_wrapper(f1, f2) << endl;
    // cout << runtime_wrapper(2) << endl;  // Strong-typed, only accept FType
}