dolphin8

#include <utility>

namespace demo {
    template <typename Hd, typename Tl>
    using cons_t = std::pair<Hd, Tl>;

    constexpr auto nil = nullptr;

    constexpr auto cons(auto hd, auto tl) {
        return std::make_pair(hd, tl);

dolphin8

#include <iostream>
#include <utility>
#include <boost/context/all.hpp>
#include <boost/asio.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>

namespace spawn {
  namespace asio = boost::asio;
  namespace ctx = boost::context;