#include
#include
using namespace std;
auto Pair = [](auto u, auto v) {
return [=](auto f) {
return f(u, v);
};
};
auto First = [](auto p){
auto temp = [](auto u, auto v) {return u;};
return p(temp);
};
auto Second= [=](auto p){
auto temp = [](auto u, auto v) {return v;};
return p(temp);
};
void PrintAll(nullptr_t) {
}
template
void PrintAll(T t) {
cout << First(t) << endl;
PrintAll(Second(t));
}
int main()
{
auto t = Pair(1, “two”);
auto one = First(t);
auto two = Second(t);
cout << one << ", " << two << endl;
auto numbers = Pair(1, Pair(2, Pair(3, Pair(4, Pair(5, nullptr)))));
PrintAll(numbers);
return 0;
}
