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62 lines
1.7 KiB
C++
Executable File
62 lines
1.7 KiB
C++
Executable File
// (C) Copyright 2012 Vicente J. Botet Escriba
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/thread/detail/config.hpp>
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#ifndef BOOST_NO_EXCEPTIONS
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#include <boost/thread/future.hpp>
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namespace boost
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{
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namespace thread_detail
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{
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class future_error_category :
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public boost::system::error_category
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{
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public:
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virtual const char* name() const; //BOOST_NOEXCEPT;
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virtual std::string message(int ev) const;
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};
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const char*
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future_error_category::name() const //BOOST_NOEXCEPT
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{
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return "future";
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}
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std::string
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future_error_category::message(int ev) const
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{
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switch (BOOST_SCOPED_ENUM_NATIVE(future_errc)(ev))
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{
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case future_errc::broken_promise:
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return std::string("The associated promise has been destructed prior "
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"to the associated state becoming ready.");
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case future_errc::future_already_retrieved:
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return std::string("The future has already been retrieved from "
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"the promise or packaged_task.");
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case future_errc::promise_already_satisfied:
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return std::string("The state of the promise has already been set.");
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case future_errc::no_state:
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return std::string("Operation not permitted on an object without "
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"an associated state.");
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}
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return std::string("unspecified future_errc value\n");
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}
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}
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const system::error_category&
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future_category() BOOST_NOEXCEPT
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{
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static thread_detail::future_error_category f;
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return f;
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}
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}
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#endif
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