1064 lines
32 KiB
C++
1064 lines
32 KiB
C++
//
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// execution/inline_exception_handling.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2025 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_EXECUTION_INLINE_EXCEPTION_HANDLING_HPP
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#define ASIO_EXECUTION_INLINE_EXCEPTION_HANDLING_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/config.hpp"
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#include "asio/detail/type_traits.hpp"
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#include "asio/execution/executor.hpp"
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#include "asio/is_applicable_property.hpp"
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#include "asio/prefer.hpp"
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#include "asio/query.hpp"
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#include "asio/require.hpp"
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#include "asio/traits/execute_member.hpp"
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#include "asio/traits/query_free.hpp"
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#include "asio/traits/query_member.hpp"
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#include "asio/traits/query_static_constexpr_member.hpp"
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#include "asio/traits/static_query.hpp"
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#include "asio/traits/static_require.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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#if defined(GENERATING_DOCUMENTATION)
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namespace execution {
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/// A property to describe what guarantees an executor makes about the treatment
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/// of exceptions that are thrown by a submitted function, when that function
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/// is executed inline within @c execute.
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struct inline_exception_handling_t
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{
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/// The inline_exception_handling property applies to executors.
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template <typename T>
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static constexpr bool is_applicable_property_v = is_executor_v<T>;
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/// The top-level inline_exception_handling property cannot be required.
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static constexpr bool is_requirable = false;
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/// The top-level inline_exception_handling property cannot be preferred.
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static constexpr bool is_preferable = false;
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/// The type returned by queries against an @c any_executor.
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typedef inline_exception_handling_t polymorphic_query_result_type;
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/// A sub-property that indicates that invocation of an executor's execution
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/// function will propagate any exceptions that are thrown by the submitted
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/// function object, if that function object is executed inline.
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struct propagate_t
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{
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/// The inline_exception_handling_t::propagate_t property applies to
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/// executors.
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template <typename T>
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static constexpr bool is_applicable_property_v = is_executor_v<T>;
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/// The inline_exception_handling_t::propagate_t property can be required.
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static constexpr bool is_requirable = true;
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/// The inline_exception_handling_t::propagate_t property can be preferred.
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static constexpr bool is_preferable = true;
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/// The type returned by queries against an @c any_executor.
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typedef inline_exception_handling_t polymorphic_query_result_type;
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/// Default constructor.
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constexpr propagate_t();
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/// Get the value associated with a property object.
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/**
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* @returns propagate_t();
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*/
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static constexpr inline_exception_handling_t value();
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};
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/// A sub-property that indicates that invocation of an executor's execution
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/// function will capture any exceptions that are thrown by the submitted
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/// function object, if that function object is executed inline. Captured
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/// exceptions are forwarded to an executor-defined handling mechanism.
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struct capture_t
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{
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/// The inline_exception_handling_t::capture_t property applies to
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/// executors.
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template <typename T>
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static constexpr bool is_applicable_property_v = is_executor_v<T>;
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/// The inline_exception_handling_t::capture_t property can be required.
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static constexpr bool is_requirable = true;
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/// The inline_exception_handling_t::capture_t property can be preferred.
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static constexpr bool is_preferable = false;
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/// The type returned by queries against an @c any_executor.
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typedef inline_exception_handling_t polymorphic_query_result_type;
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/// Default constructor.
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constexpr capture_t();
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/// Get the value associated with a property object.
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/**
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* @returns capture_t();
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*/
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static constexpr inline_exception_handling_t value();
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};
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/// A sub-property that indicates that invocation of an executor's execution
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/// function will terminate the program if any exceptions that are thrown by
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/// the submitted function object, if that function object is executed inline.
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struct terminate_t
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{
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/// The inline_exception_handling_t::terminate_t property applies to
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/// executors.
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template <typename T>
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static constexpr bool is_applicable_property_v = is_executor_v<T>;
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/// The inline_exception_handling_t::terminate_t property can be required.
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static constexpr bool is_requirable = true;
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/// The inline_exception_handling_t::terminate_t property can be preferred.
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static constexpr bool is_preferable = true;
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/// The type returned by queries against an @c any_executor.
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typedef inline_exception_handling_t polymorphic_query_result_type;
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/// Default constructor.
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constexpr terminate_t();
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/// Get the value associated with a property object.
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/**
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* @returns terminate_t();
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*/
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static constexpr inline_exception_handling_t value();
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};
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/// A special value used for accessing the
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/// inline_exception_handling_t::propagate_t property.
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static constexpr propagate_t propagate;
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/// A special value used for accessing the
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/// inline_exception_handling_t::capture_t property.
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static constexpr capture_t capture;
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/// A special value used for accessing the
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/// inline_exception_handling_t::terminate_t property.
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static constexpr terminate_t terminate;
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/// Default constructor.
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constexpr inline_exception_handling_t();
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/// Construct from a sub-property value.
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constexpr inline_exception_handling_t(propagate_t);
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/// Construct from a sub-property value.
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constexpr inline_exception_handling_t(capture_t);
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/// Construct from a sub-property value.
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constexpr inline_exception_handling_t(terminate_t);
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/// Compare property values for equality.
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friend constexpr bool operator==(const inline_exception_handling_t& a,
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const inline_exception_handling_t& b) noexcept;
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/// Compare property values for inequality.
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friend constexpr bool operator!=(const inline_exception_handling_t& a,
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const inline_exception_handling_t& b) noexcept;
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};
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/// A special value used for accessing the inline_exception_handling property.
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constexpr inline_exception_handling_t inline_exception_handling;
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} // namespace execution
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#else // defined(GENERATING_DOCUMENTATION)
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namespace execution {
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namespace detail {
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namespace inline_exception_handling {
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template <int I> struct propagate_t;
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template <int I> struct capture_t;
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template <int I> struct terminate_t;
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} // namespace inline_exception_handling
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template <int I = 0>
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struct inline_exception_handling_t
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{
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#if defined(ASIO_HAS_VARIABLE_TEMPLATES)
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template <typename T>
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static constexpr bool is_applicable_property_v = is_executor<T>::value;
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#endif // defined(ASIO_HAS_VARIABLE_TEMPLATES)
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static constexpr bool is_requirable = false;
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static constexpr bool is_preferable = false;
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typedef inline_exception_handling_t polymorphic_query_result_type;
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typedef detail::inline_exception_handling::propagate_t<I> propagate_t;
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typedef detail::inline_exception_handling::capture_t<I> capture_t;
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typedef detail::inline_exception_handling::terminate_t<I> terminate_t;
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constexpr inline_exception_handling_t()
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: value_(-1)
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{
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}
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constexpr inline_exception_handling_t(propagate_t)
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: value_(0)
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{
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}
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constexpr inline_exception_handling_t(capture_t)
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: value_(1)
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{
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}
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constexpr inline_exception_handling_t(terminate_t)
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: value_(2)
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{
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}
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template <typename T>
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struct proxy
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{
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#if defined(ASIO_HAS_DEDUCED_QUERY_MEMBER_TRAIT)
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struct type
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{
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template <typename P>
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auto query(P&& p) const
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noexcept(
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noexcept(
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declval<conditional_t<true, T, P>>().query(static_cast<P&&>(p))
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)
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)
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-> decltype(
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declval<conditional_t<true, T, P>>().query(static_cast<P&&>(p))
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);
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};
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#else // defined(ASIO_HAS_DEDUCED_QUERY_MEMBER_TRAIT)
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typedef T type;
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#endif // defined(ASIO_HAS_DEDUCED_QUERY_MEMBER_TRAIT)
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};
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template <typename T>
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struct static_proxy
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{
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#if defined(ASIO_HAS_DEDUCED_QUERY_STATIC_CONSTEXPR_MEMBER_TRAIT)
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struct type
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{
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template <typename P>
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static constexpr auto query(P&& p)
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noexcept(
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noexcept(
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conditional_t<true, T, P>::query(static_cast<P&&>(p))
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)
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)
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-> decltype(
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conditional_t<true, T, P>::query(static_cast<P&&>(p))
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)
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{
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return T::query(static_cast<P&&>(p));
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}
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};
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#else // defined(ASIO_HAS_DEDUCED_QUERY_STATIC_CONSTEXPR_MEMBER_TRAIT)
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typedef T type;
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#endif // defined(ASIO_HAS_DEDUCED_QUERY_STATIC_CONSTEXPR_MEMBER_TRAIT)
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};
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template <typename T>
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struct query_member :
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traits::query_member<typename proxy<T>::type,
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inline_exception_handling_t> {};
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template <typename T>
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struct query_static_constexpr_member :
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traits::query_static_constexpr_member<
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typename static_proxy<T>::type, inline_exception_handling_t> {};
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#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
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&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
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template <typename T>
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static constexpr
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typename query_static_constexpr_member<T>::result_type
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static_query()
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noexcept(query_static_constexpr_member<T>::is_noexcept)
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{
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return query_static_constexpr_member<T>::value();
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}
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template <typename T>
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static constexpr
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typename traits::static_query<T, propagate_t>::result_type
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static_query(
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enable_if_t<
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!query_static_constexpr_member<T>::is_valid
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>* = 0,
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enable_if_t<
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!query_member<T>::is_valid
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>* = 0,
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enable_if_t<
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traits::static_query<T, propagate_t>::is_valid
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>* = 0) noexcept
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{
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return traits::static_query<T, propagate_t>::value();
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}
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template <typename T>
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static constexpr
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typename traits::static_query<T, capture_t>::result_type
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static_query(
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enable_if_t<
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!query_static_constexpr_member<T>::is_valid
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>* = 0,
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enable_if_t<
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!query_member<T>::is_valid
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>* = 0,
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enable_if_t<
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!traits::static_query<T, propagate_t>::is_valid
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>* = 0,
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enable_if_t<
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traits::static_query<T, capture_t>::is_valid
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>* = 0) noexcept
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{
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return traits::static_query<T, capture_t>::value();
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}
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template <typename T>
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static constexpr
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typename traits::static_query<T, terminate_t>::result_type
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static_query(
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enable_if_t<
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!query_static_constexpr_member<T>::is_valid
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>* = 0,
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enable_if_t<
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!query_member<T>::is_valid
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>* = 0,
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enable_if_t<
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!traits::static_query<T, propagate_t>::is_valid
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>* = 0,
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enable_if_t<
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!traits::static_query<T, capture_t>::is_valid
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>* = 0,
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enable_if_t<
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traits::static_query<T, terminate_t>::is_valid
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>* = 0) noexcept
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{
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return traits::static_query<T, terminate_t>::value();
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}
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template <typename E,
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typename T = decltype(inline_exception_handling_t::static_query<E>())>
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static constexpr const T static_query_v
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= inline_exception_handling_t::static_query<E>();
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#endif // defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
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// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
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friend constexpr bool operator==(const inline_exception_handling_t& a,
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const inline_exception_handling_t& b)
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{
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return a.value_ == b.value_;
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}
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friend constexpr bool operator!=(const inline_exception_handling_t& a,
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const inline_exception_handling_t& b)
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{
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return a.value_ != b.value_;
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}
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struct convertible_from_inline_exception_handling_t
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{
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constexpr convertible_from_inline_exception_handling_t(
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inline_exception_handling_t) {}
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};
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template <typename Executor>
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friend constexpr inline_exception_handling_t query(
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const Executor& ex, convertible_from_inline_exception_handling_t,
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enable_if_t<
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can_query<const Executor&, propagate_t>::value
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>* = 0)
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#if !defined(__clang__) // Clang crashes if noexcept is used here.
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#if defined(ASIO_MSVC) // Visual C++ wants the type to be qualified.
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noexcept(is_nothrow_query<const Executor&,
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inline_exception_handling_t<>::propagate_t>::value)
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#else // defined(ASIO_MSVC)
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noexcept(is_nothrow_query<const Executor&, propagate_t>::value)
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#endif // defined(ASIO_MSVC)
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#endif // !defined(__clang__)
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{
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return asio::query(ex, propagate_t());
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}
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template <typename Executor>
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friend constexpr inline_exception_handling_t query(
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const Executor& ex, convertible_from_inline_exception_handling_t,
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enable_if_t<
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!can_query<const Executor&, propagate_t>::value
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>* = 0,
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enable_if_t<
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can_query<const Executor&, capture_t>::value
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>* = 0)
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#if !defined(__clang__) // Clang crashes if noexcept is used here.
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#if defined(ASIO_MSVC) // Visual C++ wants the type to be qualified.
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noexcept(is_nothrow_query<const Executor&,
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inline_exception_handling_t<>::capture_t>::value)
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#else // defined(ASIO_MSVC)
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noexcept(is_nothrow_query<const Executor&, capture_t>::value)
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#endif // defined(ASIO_MSVC)
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#endif // !defined(__clang__)
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{
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return asio::query(ex, capture_t());
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}
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template <typename Executor>
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friend constexpr inline_exception_handling_t query(
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const Executor& ex, convertible_from_inline_exception_handling_t,
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enable_if_t<
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!can_query<const Executor&, propagate_t>::value
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>* = 0,
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enable_if_t<
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!can_query<const Executor&, capture_t>::value
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>* = 0,
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enable_if_t<
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can_query<const Executor&, terminate_t>::value
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>* = 0)
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#if !defined(__clang__) // Clang crashes if noexcept is used here.
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#if defined(ASIO_MSVC) // Visual C++ wants the type to be qualified.
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noexcept(is_nothrow_query<const Executor&,
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inline_exception_handling_t<>::terminate_t>::value)
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#else // defined(ASIO_MSVC)
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noexcept(is_nothrow_query<const Executor&, terminate_t>::value)
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#endif // defined(ASIO_MSVC)
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#endif // !defined(__clang__)
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{
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return asio::query(ex, terminate_t());
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}
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ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(propagate_t, propagate);
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ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(capture_t, capture);
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ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(terminate_t, terminate);
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private:
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int value_;
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};
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#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
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&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
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template <int I> template <typename E, typename T>
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const T inline_exception_handling_t<I>::static_query_v;
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#endif // defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
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// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
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template <int I>
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const typename inline_exception_handling_t<I>::propagate_t
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inline_exception_handling_t<I>::propagate;
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template <int I>
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const typename inline_exception_handling_t<I>::capture_t
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inline_exception_handling_t<I>::capture;
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template <int I>
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const typename inline_exception_handling_t<I>::terminate_t
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inline_exception_handling_t<I>::terminate;
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namespace inline_exception_handling {
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template <int I = 0>
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struct propagate_t
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{
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#if defined(ASIO_HAS_VARIABLE_TEMPLATES)
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template <typename T>
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static constexpr bool is_applicable_property_v = is_executor<T>::value;
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#endif // defined(ASIO_HAS_VARIABLE_TEMPLATES)
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static constexpr bool is_requirable = true;
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static constexpr bool is_preferable = true;
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typedef inline_exception_handling_t<I> polymorphic_query_result_type;
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constexpr propagate_t()
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{
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}
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template <typename T>
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struct query_member :
|
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traits::query_member<
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typename inline_exception_handling_t<I>::template
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proxy<T>::type, propagate_t> {};
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template <typename T>
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struct query_static_constexpr_member :
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traits::query_static_constexpr_member<
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typename inline_exception_handling_t<I>::template
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static_proxy<T>::type, propagate_t> {};
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#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
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&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
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template <typename T>
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static constexpr
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typename query_static_constexpr_member<T>::result_type
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static_query()
|
|
noexcept(query_static_constexpr_member<T>::is_noexcept)
|
|
{
|
|
return query_static_constexpr_member<T>::value();
|
|
}
|
|
|
|
template <typename T>
|
|
static constexpr propagate_t static_query(
|
|
enable_if_t<
|
|
!query_static_constexpr_member<T>::is_valid
|
|
>* = 0,
|
|
enable_if_t<
|
|
!query_member<T>::is_valid
|
|
>* = 0,
|
|
enable_if_t<
|
|
!traits::query_free<T, propagate_t>::is_valid
|
|
>* = 0,
|
|
enable_if_t<
|
|
!can_query<T, capture_t<I>>::value
|
|
>* = 0,
|
|
enable_if_t<
|
|
!can_query<T, terminate_t<I>>::value
|
|
>* = 0) noexcept
|
|
{
|
|
return propagate_t();
|
|
}
|
|
|
|
template <typename E, typename T = decltype(propagate_t::static_query<E>())>
|
|
static constexpr const T static_query_v
|
|
= propagate_t::static_query<E>();
|
|
#endif // defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
static constexpr inline_exception_handling_t<I> value()
|
|
{
|
|
return propagate_t();
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const propagate_t&, const propagate_t&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const propagate_t&, const propagate_t&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const propagate_t&, const capture_t<I>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const propagate_t&, const capture_t<I>&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const propagate_t&, const terminate_t<I>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const propagate_t&, const terminate_t<I>&)
|
|
{
|
|
return true;
|
|
}
|
|
};
|
|
|
|
#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
|
|
&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
template <int I> template <typename E, typename T>
|
|
const T propagate_t<I>::static_query_v;
|
|
#endif // defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
|
|
// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
template <int I = 0>
|
|
struct capture_t
|
|
{
|
|
#if defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
template <typename T>
|
|
static constexpr bool is_applicable_property_v = is_executor<T>::value;
|
|
#endif // defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
|
|
static constexpr bool is_requirable = true;
|
|
static constexpr bool is_preferable = false;
|
|
typedef inline_exception_handling_t<I> polymorphic_query_result_type;
|
|
|
|
constexpr capture_t()
|
|
{
|
|
}
|
|
|
|
template <typename T>
|
|
struct query_member :
|
|
traits::query_member<
|
|
typename inline_exception_handling_t<I>::template
|
|
proxy<T>::type, capture_t> {};
|
|
|
|
template <typename T>
|
|
struct query_static_constexpr_member :
|
|
traits::query_static_constexpr_member<
|
|
typename inline_exception_handling_t<I>::template
|
|
static_proxy<T>::type, capture_t> {};
|
|
|
|
#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
|
|
&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
template <typename T>
|
|
static constexpr typename query_static_constexpr_member<T>::result_type
|
|
static_query()
|
|
noexcept(query_static_constexpr_member<T>::is_noexcept)
|
|
{
|
|
return query_static_constexpr_member<T>::value();
|
|
}
|
|
|
|
template <typename E, typename T = decltype(capture_t::static_query<E>())>
|
|
static constexpr const T static_query_v = capture_t::static_query<E>();
|
|
#endif // defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
static constexpr inline_exception_handling_t<I> value()
|
|
{
|
|
return capture_t();
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const capture_t&, const capture_t&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const capture_t&, const capture_t&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const capture_t&, const propagate_t<I>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const capture_t&, const propagate_t<I>&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const capture_t&, const terminate_t<I>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const capture_t&, const terminate_t<I>&)
|
|
{
|
|
return true;
|
|
}
|
|
};
|
|
|
|
#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
|
|
&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
template <int I> template <typename E, typename T>
|
|
const T capture_t<I>::static_query_v;
|
|
#endif // defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
|
|
// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
template <int I>
|
|
struct terminate_t
|
|
{
|
|
#if defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
template <typename T>
|
|
static constexpr bool is_applicable_property_v = is_executor<T>::value;
|
|
#endif // defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
|
|
static constexpr bool is_requirable = true;
|
|
static constexpr bool is_preferable = true;
|
|
typedef inline_exception_handling_t<I> polymorphic_query_result_type;
|
|
|
|
constexpr terminate_t()
|
|
{
|
|
}
|
|
|
|
template <typename T>
|
|
struct query_member :
|
|
traits::query_member<
|
|
typename inline_exception_handling_t<I>::template
|
|
proxy<T>::type, terminate_t> {};
|
|
|
|
template <typename T>
|
|
struct query_static_constexpr_member :
|
|
traits::query_static_constexpr_member<
|
|
typename inline_exception_handling_t<I>::template
|
|
static_proxy<T>::type, terminate_t> {};
|
|
|
|
#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
|
|
&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
template <typename T>
|
|
static constexpr
|
|
typename query_static_constexpr_member<T>::result_type
|
|
static_query()
|
|
noexcept(query_static_constexpr_member<T>::is_noexcept)
|
|
{
|
|
return query_static_constexpr_member<T>::value();
|
|
}
|
|
|
|
template <typename E, typename T = decltype(terminate_t::static_query<E>())>
|
|
static constexpr const T static_query_v
|
|
= terminate_t::static_query<E>();
|
|
#endif // defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
|
|
// && defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
static constexpr inline_exception_handling_t<I> value()
|
|
{
|
|
return terminate_t();
|
|
}
|
|
|
|
friend constexpr bool operator==(const terminate_t&, const terminate_t&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
friend constexpr bool operator!=(const terminate_t&, const terminate_t&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator==(const terminate_t&, const propagate_t<I>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator!=(const terminate_t&, const propagate_t<I>&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
friend constexpr bool operator==(const terminate_t&, const capture_t<I>&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
friend constexpr bool operator!=(const terminate_t&, const capture_t<I>&)
|
|
{
|
|
return true;
|
|
}
|
|
};
|
|
|
|
#if defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
|
|
&& defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
template <int I> template <typename E, typename T>
|
|
const T terminate_t<I>::static_query_v;
|
|
#endif // defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
} // namespace inline_exception_handling
|
|
} // namespace detail
|
|
|
|
typedef detail::inline_exception_handling_t<> inline_exception_handling_t;
|
|
|
|
ASIO_INLINE_VARIABLE constexpr
|
|
inline_exception_handling_t inline_exception_handling;
|
|
|
|
} // namespace execution
|
|
|
|
#if !defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
|
|
template <typename T>
|
|
struct is_applicable_property<T, execution::inline_exception_handling_t>
|
|
: integral_constant<bool, execution::is_executor<T>::value>
|
|
{
|
|
};
|
|
|
|
template <typename T>
|
|
struct is_applicable_property<T,
|
|
execution::inline_exception_handling_t::propagate_t>
|
|
: integral_constant<bool, execution::is_executor<T>::value>
|
|
{
|
|
};
|
|
|
|
template <typename T>
|
|
struct is_applicable_property<T,
|
|
execution::inline_exception_handling_t::capture_t>
|
|
: integral_constant<bool, execution::is_executor<T>::value>
|
|
{
|
|
};
|
|
|
|
template <typename T>
|
|
struct is_applicable_property<T,
|
|
execution::inline_exception_handling_t::terminate_t>
|
|
: integral_constant<bool, execution::is_executor<T>::value>
|
|
{
|
|
};
|
|
|
|
#endif // !defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
|
|
namespace traits {
|
|
|
|
#if !defined(ASIO_HAS_DEDUCED_QUERY_FREE_TRAIT)
|
|
|
|
template <typename T>
|
|
struct query_free_default<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
can_query<T, execution::inline_exception_handling_t::propagate_t>::value
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = is_nothrow_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::value;
|
|
|
|
typedef execution::inline_exception_handling_t result_type;
|
|
};
|
|
|
|
template <typename T>
|
|
struct query_free_default<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
!can_query<T, execution::inline_exception_handling_t::propagate_t>::value
|
|
&& can_query<T, execution::inline_exception_handling_t::capture_t>::value
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = is_nothrow_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::value;
|
|
|
|
typedef execution::inline_exception_handling_t result_type;
|
|
};
|
|
|
|
template <typename T>
|
|
struct query_free_default<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
!can_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::value
|
|
&& !can_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::value
|
|
&& can_query<T,
|
|
execution::inline_exception_handling_t::terminate_t>::value
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = is_nothrow_query<T,
|
|
execution::inline_exception_handling_t::terminate_t>::value;
|
|
|
|
typedef execution::inline_exception_handling_t result_type;
|
|
};
|
|
|
|
#endif // !defined(ASIO_HAS_DEDUCED_QUERY_FREE_TRAIT)
|
|
|
|
#if !defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
|
|
|| !defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
execution::detail::inline_exception_handling_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef typename execution::detail::inline_exception_handling_t<0>::
|
|
query_static_constexpr_member<T>::result_type result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return execution::inline_exception_handling_t::
|
|
query_static_constexpr_member<T>::value();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
!execution::detail::inline_exception_handling_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
&& !execution::detail::inline_exception_handling_t<0>::
|
|
query_member<T>::is_valid
|
|
&& traits::static_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef typename traits::static_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::result_type
|
|
result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return traits::static_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::value();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
!execution::detail::inline_exception_handling_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
&& !execution::detail::inline_exception_handling_t<0>::
|
|
query_member<T>::is_valid
|
|
&& !traits::static_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::is_valid
|
|
&& traits::static_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef typename traits::static_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::result_type result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return traits::static_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::value();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t,
|
|
enable_if_t<
|
|
!execution::detail::inline_exception_handling_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
&& !execution::detail::inline_exception_handling_t<0>::
|
|
query_member<T>::is_valid
|
|
&& !traits::static_query<T,
|
|
execution::inline_exception_handling_t::propagate_t>::is_valid
|
|
&& !traits::static_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::is_valid
|
|
&& traits::static_query<T,
|
|
execution::inline_exception_handling_t::terminate_t>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef typename traits::static_query<T,
|
|
execution::inline_exception_handling_t::terminate_t>::result_type
|
|
result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return traits::static_query<T,
|
|
execution::inline_exception_handling_t::terminate_t>::value();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t::propagate_t,
|
|
enable_if_t<
|
|
execution::detail::inline_exception_handling::propagate_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef typename execution::detail::inline_exception_handling::
|
|
propagate_t<0>::query_static_constexpr_member<T>::result_type result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return execution::detail::inline_exception_handling::propagate_t<0>::
|
|
query_static_constexpr_member<T>::value();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t::propagate_t,
|
|
enable_if_t<
|
|
!execution::detail::inline_exception_handling::propagate_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
&& !execution::detail::inline_exception_handling::propagate_t<0>::
|
|
query_member<T>::is_valid
|
|
&& !traits::query_free<T,
|
|
execution::inline_exception_handling_t::propagate_t>::is_valid
|
|
&& !can_query<T,
|
|
execution::inline_exception_handling_t::capture_t>::value
|
|
&& !can_query<T,
|
|
execution::inline_exception_handling_t::terminate_t>::value
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef execution::inline_exception_handling_t::propagate_t result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return result_type();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t::capture_t,
|
|
enable_if_t<
|
|
execution::detail::inline_exception_handling::capture_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
|
|
static constexpr bool is_noexcept = true;
|
|
|
|
typedef typename execution::detail::inline_exception_handling::
|
|
capture_t<0>::query_static_constexpr_member<T>::result_type result_type;
|
|
|
|
static constexpr result_type value()
|
|
{
|
|
return execution::detail::inline_exception_handling::capture_t<0>::
|
|
query_static_constexpr_member<T>::value();
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct static_query<T, execution::inline_exception_handling_t::terminate_t,
|
|
enable_if_t<
|
|
execution::detail::inline_exception_handling::terminate_t<0>::
|
|
query_static_constexpr_member<T>::is_valid
|
|
>>
|
|
{
|
|
static constexpr bool is_valid = true;
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static constexpr bool is_noexcept = true;
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typedef typename execution::detail::inline_exception_handling::
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terminate_t<0>::query_static_constexpr_member<T>::result_type result_type;
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static constexpr result_type value()
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{
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return execution::detail::inline_exception_handling::terminate_t<0>::
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query_static_constexpr_member<T>::value();
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}
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};
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#endif // !defined(ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
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// || !defined(ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
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} // namespace traits
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#endif // defined(GENERATING_DOCUMENTATION)
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_EXECUTION_INLINE_EXCEPTION_HANDLING_HPP
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