text: //
  // detail/base_from_completion_cond.hpp
  // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  //
  // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  //
  // 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)
  //
  
  #ifndef ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
  #define ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
  
  #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  # pragma once
  #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  
  #include "asio/detail/config.hpp"
  #include "asio/completion_condition.hpp"
  
  #include "asio/detail/push_options.hpp"
  
  namespace asio {
  namespace detail {
  
  template <typename CompletionCondition>
  class base_from_completion_cond
  {
  protected:
    explicit base_from_completion_cond(CompletionCondition completion_condition)
      : completion_condition_(completion_condition)
    {
    }
  
    std::size_t check_for_completion(
        const asio::error_code& ec,
        std::size_t total_transferred)
    {
      return detail::adapt_completion_condition_result(
          completion_condition_(ec, total_transferred));
    }
  
  private:
    CompletionCondition completion_condition_;
  };
  
  template <>
  class base_from_completion_cond<transfer_all_t>
  {
  protected:
    explicit base_from_completion_cond(transfer_all_t)
    {
    }
  
    static std::size_t check_for_completion(
        const asio::error_code& ec,
        std::size_t total_transferred)
    {
      return transfer_all_t()(ec, total_transferred);
    }
  };
  
  } // namespace detail
  } // namespace asio
  
  #include "asio/detail/pop_options.hpp"
  
  #endif // ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
  