yield.h

//          Copyright 2003-2013 Christopher M. Kohlhoff
//          Copyright Oliver Kowalke, Nat Goodspeed 2015.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

#pragma once
#include <boost/system/error_code.hpp>

namespace util {
namespace fibers_ext {

//[fibers_asio_yield_t
class yield_t {
public:
    yield_t() = default;

    yield_t operator[]( boost::system::error_code & ec) const {
        yield_t tmp;
        tmp.ec_ = & ec;
        return tmp;
    }

//private:
    // ptr to bound error_code instance if any
    boost::system::error_code   *   ec_{ nullptr };
};

extern thread_local yield_t yield;
//]

}  // namespace fibers_ext
}  // namespace util

#include "detail/yield.hpp"