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#include <iostream>
#include <utility>
#include <functional>
#include <vector>
#include <string>
#include <stack>
#include <thread>
using namespace std;
struct Forwarder
{
string d_cl;
Forwarder()
:
d_cl("1234567890")
{}
template<typename ...Args>
string substr(Args &&...args)
{
return d_cl.substr(std::forward<Args>(args)...);
}
//// void fwd(size_t (std::string::*ptr)())
////////////////////////////////////////////////////////////////
// template <typename Ret, typename Member, typename Arg>
// Ret fwd(Member member, Arg arg)
//
//// decltype (static_cast<Client &>(
//// *static_cast<Client *>(0)
//// ))
//
//
//// decltype(s_r)
//
//// Niet met .* decltype ((d_cl.*member)(arg))
//
// {
// return (d_cl.*member)(arg);
// }
////////////////////////////////////////////////////////////////
// template <typename Ret, typename Member, typename ...Args>
// Ret fwd(Member member, Args&&...args)
// {
// return (d_cl.*member)(std::forward<Args>(args)...);
// }
};
struct X
{
template <typename T>//, typename ...Args>
struct result
{
typedef void type;
};
void operator()(int x)
{
cout << "int\n";
}
void operator()(double x)
{
cout << "double\n";
}
void operator()(double x, char const *)
{
cout << "double, string\n";
}
void operator()(ostream &out, double &x, char const *)
{
cout << "double, string\n";
}
};
struct One
{
One()
{
cout << "One()\n";
}
One(int)
{
cout << "One(int)\n";
}
};
struct Two
{
Two()
{
cout << "Two()\n";
}
Two(int)
{
cout << "Two(int)\n";
}
};
template <typename Class, typename ...Args>
Class factory(Args &&...args)
{
return Class(std::forward<Args>(args)...);
}
void calledFunction(ostream &out)
{
out << "hello\n";
}
void calledFunction(int x)
{
++x;
}
void calledFunction(int &x)
{
++x;
}
template <typename ...Args>
void caller(Args &&...args)
{
calledFunction(std::forward<Args>(args) ...);
}
int main()
{
int x = 0;
caller(cout);
caller(x);
cout << x << '\n';
// int arg;
// X x;
// Forwarder forwarder;
//
// string &&out = forwarder.substr(5, 2);
//
// factory<One>();
// Two two(factory<Two>(3));
//
// factory<Two>(two);
//
// cout << out << '\n';
// forwarder.function(x, 0);
// forwarder.function(x, 0.0);
//
// double d;
// thread t(x, ref(cout), ref(d), "hi");
}
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