ceph/src/boost/libs/thread/include/boost/thread/futures/future_error_code.hpp

   1 //  (C) Copyright 2008-10 Anthony Williams
   2 //  (C) Copyright 2011-2012,2015 Vicente J. Botet Escriba
   3 //
   4 //  Distributed under the Boost Software License, Version 1.0. (See
   5 //  accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7
   8 #ifndef BOOST_THREAD_FUTURES_FUTURE_ERROR_CODE_HPP
   9 #define BOOST_THREAD_FUTURES_FUTURE_ERROR_CODE_HPP
  10
  11 #include <boost/thread/detail/config.hpp>
  12 #include <boost/core/scoped_enum.hpp>
  13 #include <boost/system/error_code.hpp>
  14 #include <boost/type_traits/integral_constant.hpp>
  15
  16 namespace boost
  17 {
  18
  19   //enum class future_errc
  20   BOOST_SCOPED_ENUM_DECLARE_BEGIN(future_errc)
  21   {
  22       broken_promise = 1,
  23       future_already_retrieved,
  24       promise_already_satisfied,
  25       no_state
  26   }
  27   BOOST_SCOPED_ENUM_DECLARE_END(future_errc)
  28
  29   namespace system
  30   {
  31     template <>
  32     struct BOOST_SYMBOL_VISIBLE is_error_code_enum< ::boost::future_errc> : public true_type {};
  33
  34     #ifdef BOOST_NO_CXX11_SCOPED_ENUMS
  35     template <>
  36     struct BOOST_SYMBOL_VISIBLE is_error_code_enum< ::boost::future_errc::enum_type> : public true_type { };
  37     #endif
  38   } // system
  39
  40   BOOST_THREAD_DECL
  41   const system::error_category& future_category() BOOST_NOEXCEPT;
  42
  43   namespace system
  44   {
  45     inline
  46     error_code
  47     make_error_code(future_errc e) BOOST_NOEXCEPT
  48     {
  49         return error_code(underlying_cast<int>(e), boost::future_category());
  50     }
  51
  52     inline
  53     error_condition
  54     make_error_condition(future_errc e) BOOST_NOEXCEPT
  55     {
  56         return error_condition(underlying_cast<int>(e), boost::future_category());
  57     }
  58   } // system
  59 } // boost
  60
  61 #endif // header