mirror of
https://git.suyu.dev/suyu/ext-boost.git
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externals: Update boost to 1.72 and add Boost Context
This commit is contained in:
Fernando Sahmkow
parent
5e8300b76a
commit
77abe07b3b
618 changed files with 96299 additions and 14263 deletions
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@ -24,6 +24,66 @@
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namespace boost {
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namespace asio {
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#if defined(BOOST_ASIO_HAS_CONCEPTS) \
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&& defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) \
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&& defined(BOOST_ASIO_HAS_DECLTYPE)
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namespace detail {
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template <typename T>
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struct is_completion_signature : false_type
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{
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};
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template <typename R, typename... Args>
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struct is_completion_signature<R(Args...)> : true_type
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{
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};
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template <typename T, typename... Args>
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BOOST_ASIO_CONCEPT callable_with = requires(T t, Args&&... args)
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{
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t(static_cast<Args&&>(args)...);
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};
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template <typename T, typename Signature>
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struct is_completion_handler_for : false_type
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{
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};
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template <typename T, typename R, typename... Args>
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struct is_completion_handler_for<T, R(Args...)>
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: integral_constant<bool, (callable_with<T, Args...>)>
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{
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};
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} // namespace detail
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template <typename T>
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BOOST_ASIO_CONCEPT completion_signature =
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detail::is_completion_signature<T>::value;
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#define BOOST_ASIO_COMPLETION_SIGNATURE \
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::boost::asio::completion_signature
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template <typename T, completion_signature Signature>
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BOOST_ASIO_CONCEPT completion_handler_for =
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detail::is_completion_handler_for<T, Signature>::value;
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#define BOOST_ASIO_COMPLETION_HANDLER_FOR(s) \
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::boost::asio::completion_handler_for<s>
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#else // defined(BOOST_ASIO_HAS_CONCEPTS)
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// && defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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// && defined(BOOST_ASIO_HAS_DECLTYPE)
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#define BOOST_ASIO_COMPLETION_SIGNATURE typename
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#define BOOST_ASIO_COMPLETION_HANDLER_FOR(s) typename
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#endif // defined(BOOST_ASIO_HAS_CONCEPTS)
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// && defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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// && defined(BOOST_ASIO_HAS_DECLTYPE)
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/// An interface for customising the behaviour of an initiating function.
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/**
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* The async_result traits class is used for determining:
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@ -42,7 +102,7 @@ namespace asio {
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* The primary template assumes that the CompletionToken is the completion
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* handler.
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*/
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template <typename CompletionToken, typename Signature>
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template <typename CompletionToken, BOOST_ASIO_COMPLETION_SIGNATURE Signature>
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class async_result
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{
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public:
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@ -68,12 +128,21 @@ public:
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{
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}
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#if defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) \
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|| defined(GENERATING_DOCUMENTATION)
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#if defined(GENERATING_DOCUMENTATION)
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/// Initiate the asynchronous operation that will produce the result, and
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/// obtain the value to be returned from the initiating function.
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template <typename Initiation, typename RawCompletionToken, typename... Args>
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static return_type initiate(
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BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_MOVE_ARG(RawCompletionToken) token,
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BOOST_ASIO_MOVE_ARG(Args)... args);
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#elif defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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template <typename Initiation,
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BOOST_ASIO_COMPLETION_HANDLER_FOR(Signature) RawCompletionToken,
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typename... Args>
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static return_type initiate(
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BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_MOVE_ARG(RawCompletionToken) token,
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@ -85,9 +154,9 @@ public:
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}
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#else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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// || defined(GENERATING_DOCUMENTATION)
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template <typename Initiation, typename RawCompletionToken>
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template <typename Initiation,
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BOOST_ASIO_COMPLETION_HANDLER_FOR(Signature) RawCompletionToken>
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static return_type initiate(
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BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_MOVE_ARG(RawCompletionToken) token)
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@ -97,7 +166,8 @@ public:
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}
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#define BOOST_ASIO_PRIVATE_INITIATE_DEF(n) \
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template <typename Initiation, typename RawCompletionToken, \
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template <typename Initiation, \
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BOOST_ASIO_COMPLETION_HANDLER_FOR(Signature) RawCompletionToken, \
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BOOST_ASIO_VARIADIC_TPARAMS(n)> \
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static return_type initiate( \
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BOOST_ASIO_MOVE_ARG(Initiation) initiation, \
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@ -113,17 +183,26 @@ public:
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#undef BOOST_ASIO_PRIVATE_INITIATE_DEF
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#endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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// || defined(GENERATING_DOCUMENTATION)
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private:
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async_result(const async_result&) BOOST_ASIO_DELETED;
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async_result& operator=(const async_result&) BOOST_ASIO_DELETED;
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};
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#if !defined(GENERATING_DOCUMENTATION)
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template <BOOST_ASIO_COMPLETION_SIGNATURE Signature>
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class async_result<void, Signature>
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{
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// Empty.
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};
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#endif // !defined(GENERATING_DOCUMENTATION)
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/// Helper template to deduce the handler type from a CompletionToken, capture
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/// a local copy of the handler, and then create an async_result for the
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/// handler.
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template <typename CompletionToken, typename Signature>
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template <typename CompletionToken, BOOST_ASIO_COMPLETION_SIGNATURE Signature>
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struct async_completion
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{
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/// The real handler type to be used for the asynchronous operation.
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@ -233,22 +312,50 @@ struct async_result_has_initiate_memfn
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typename ::boost::asio::decay<ct>::type, sig>::completion_handler_type
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#endif
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#if defined(GENERATION_DOCUMENTATION)
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# define BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ct, sig) \
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auto
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#elif defined(BOOST_ASIO_HAS_RETURN_TYPE_DEDUCTION)
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# define BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ct, sig) \
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auto
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#else
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# define BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ct, sig) \
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BOOST_ASIO_INITFN_RESULT_TYPE(ct, sig)
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#endif
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#if defined(GENERATION_DOCUMENTATION)
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# define BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(ct, sig, expr) \
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void_or_deduced
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#elif defined(BOOST_ASIO_HAS_DECLTYPE)
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# define BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(ct, sig, expr) \
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decltype expr
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#else
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# define BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(ct, sig, expr) \
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BOOST_ASIO_INITFN_RESULT_TYPE(ct, sig)
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#endif
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#if defined(GENERATING_DOCUMENTATION)
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template <typename CompletionToken, typename Signature,
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template <typename CompletionToken,
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completion_signature Signature,
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typename Initiation, typename... Args>
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BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, Signature)
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async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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void_or_deduced async_initiate(
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BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_NONDEDUCED_MOVE_ARG(CompletionToken),
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BOOST_ASIO_MOVE_ARG(Args)... args);
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#elif defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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template <typename CompletionToken, typename Signature,
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template <typename CompletionToken,
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BOOST_ASIO_COMPLETION_SIGNATURE Signature,
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typename Initiation, typename... Args>
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inline typename enable_if<
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detail::async_result_has_initiate_memfn<CompletionToken, Signature>::value,
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BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, Signature)>::type
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BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(CompletionToken, Signature,
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(async_result<typename decay<CompletionToken>::type,
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Signature>::initiate(declval<BOOST_ASIO_MOVE_ARG(Initiation)>(),
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declval<BOOST_ASIO_MOVE_ARG(CompletionToken)>(),
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declval<BOOST_ASIO_MOVE_ARG(Args)>()...)))>::type
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async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_NONDEDUCED_MOVE_ARG(CompletionToken) token,
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BOOST_ASIO_MOVE_ARG(Args)... args)
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@ -259,7 +366,8 @@ async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_MOVE_CAST(Args)(args)...);
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}
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template <typename CompletionToken, typename Signature,
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template <typename CompletionToken,
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BOOST_ASIO_COMPLETION_SIGNATURE Signature,
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typename Initiation, typename... Args>
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inline typename enable_if<
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!detail::async_result_has_initiate_memfn<CompletionToken, Signature>::value,
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@ -280,10 +388,15 @@ async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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#else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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template <typename CompletionToken, typename Signature, typename Initiation>
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template <typename CompletionToken,
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BOOST_ASIO_COMPLETION_SIGNATURE Signature,
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typename Initiation>
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inline typename enable_if<
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detail::async_result_has_initiate_memfn<CompletionToken, Signature>::value,
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BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, Signature)>::type
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BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(CompletionToken, Signature,
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(async_result<typename decay<CompletionToken>::type,
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Signature>::initiate(declval<BOOST_ASIO_MOVE_ARG(Initiation)>(),
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declval<BOOST_ASIO_MOVE_ARG(CompletionToken)>())))>::type
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async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_NONDEDUCED_MOVE_ARG(CompletionToken) token)
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{
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@ -292,7 +405,9 @@ async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_MOVE_CAST(CompletionToken)(token));
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}
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template <typename CompletionToken, typename Signature, typename Initiation>
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template <typename CompletionToken,
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BOOST_ASIO_COMPLETION_SIGNATURE Signature,
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typename Initiation>
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inline typename enable_if<
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!detail::async_result_has_initiate_memfn<CompletionToken, Signature>::value,
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BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, Signature)>::type
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@ -309,12 +424,17 @@ async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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}
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#define BOOST_ASIO_PRIVATE_INITIATE_DEF(n) \
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template <typename CompletionToken, typename Signature, \
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template <typename CompletionToken, \
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BOOST_ASIO_COMPLETION_SIGNATURE Signature, \
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typename Initiation, BOOST_ASIO_VARIADIC_TPARAMS(n)> \
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inline typename enable_if< \
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detail::async_result_has_initiate_memfn< \
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CompletionToken, Signature>::value, \
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BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, Signature)>::type \
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BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(CompletionToken, Signature, \
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(async_result<typename decay<CompletionToken>::type, \
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Signature>::initiate(declval<BOOST_ASIO_MOVE_ARG(Initiation)>(), \
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declval<BOOST_ASIO_MOVE_ARG(CompletionToken)>(), \
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BOOST_ASIO_VARIADIC_MOVE_DECLVAL(n))))>::type \
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async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation, \
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BOOST_ASIO_NONDEDUCED_MOVE_ARG(CompletionToken) token, \
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BOOST_ASIO_VARIADIC_MOVE_PARAMS(n)) \
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@ -325,7 +445,8 @@ async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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BOOST_ASIO_VARIADIC_MOVE_ARGS(n)); \
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} \
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\
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template <typename CompletionToken, typename Signature, \
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template <typename CompletionToken, \
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BOOST_ASIO_COMPLETION_SIGNATURE Signature, \
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typename Initiation, BOOST_ASIO_VARIADIC_TPARAMS(n)> \
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inline typename enable_if< \
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!detail::async_result_has_initiate_memfn< \
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@ -350,6 +471,114 @@ async_initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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#endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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#if defined(BOOST_ASIO_HAS_CONCEPTS) \
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&& defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) \
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&& defined(BOOST_ASIO_HAS_DECLTYPE)
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namespace detail {
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template <typename Signature>
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struct initiation_archetype
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{
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template <completion_handler_for<Signature> CompletionHandler>
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void operator()(CompletionHandler&&) const
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{
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}
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};
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} // namespace detail
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template <typename T, completion_signature Signature>
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BOOST_ASIO_CONCEPT completion_token_for = requires(T&& t)
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{
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async_initiate<T, Signature>(detail::initiation_archetype<Signature>{}, t);
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};
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#define BOOST_ASIO_COMPLETION_TOKEN_FOR(s) \
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::boost::asio::completion_token_for<s>
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#else // defined(BOOST_ASIO_HAS_CONCEPTS)
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// && defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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// && defined(BOOST_ASIO_HAS_DECLTYPE)
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#define BOOST_ASIO_COMPLETION_TOKEN_FOR(s) typename
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#endif // defined(BOOST_ASIO_HAS_CONCEPTS)
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// && defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
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// && defined(BOOST_ASIO_HAS_DECLTYPE)
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namespace detail {
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template <typename>
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struct default_completion_token_check
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{
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typedef void type;
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};
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template <typename T, typename = void>
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struct default_completion_token_impl
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{
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typedef void type;
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};
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template <typename T>
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struct default_completion_token_impl<T,
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typename default_completion_token_check<
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typename T::default_completion_token_type>::type>
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{
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typedef typename T::default_completion_token_type type;
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};
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} // namespace detail
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#if defined(GENERATING_DOCUMENTATION)
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/// Traits type used to determine the default completion token type associated
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/// with a type (such as an executor).
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/**
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* A program may specialise this traits type if the @c T template parameter in
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* the specialisation is a user-defined type.
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*
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* Specialisations of this trait may provide a nested typedef @c type, which is
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* a default-constructible completion token type.
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*/
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template <typename T>
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struct default_completion_token
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{
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/// If @c T has a nested type @c default_completion_token_type,
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/// <tt>T::default_completion_token_type</tt>. Otherwise the typedef @c type
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/// is not defined.
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typedef see_below type;
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};
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#else
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template <typename T>
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struct default_completion_token
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: detail::default_completion_token_impl<T>
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{
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};
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#endif
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#if defined(BOOST_ASIO_HAS_ALIAS_TEMPLATES)
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template <typename T>
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using default_completion_token_t = typename default_completion_token<T>::type;
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#endif // defined(BOOST_ASIO_HAS_ALIAS_TEMPLATES)
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#if defined(BOOST_ASIO_HAS_DEFAULT_FUNCTION_TEMPLATE_ARGUMENTS)
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#define BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(e) \
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= typename ::boost::asio::default_completion_token<e>::type
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#define BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(e) \
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= typename ::boost::asio::default_completion_token<e>::type()
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#else // defined(BOOST_ASIO_HAS_DEFAULT_FUNCTION_TEMPLATE_ARGUMENTS)
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#define BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(e)
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#define BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(e)
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#endif // defined(BOOST_ASIO_HAS_DEFAULT_FUNCTION_TEMPLATE_ARGUMENTS)
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} // namespace asio
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} // namespace boost
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