summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/asio/include/asio/traits/set_error_free.hpp
diff options
context:
space:
mode:
Diffstat (limited to '3rdparty/asio/include/asio/traits/set_error_free.hpp')
-rw-r--r--3rdparty/asio/include/asio/traits/set_error_free.hpp112
1 files changed, 112 insertions, 0 deletions
diff --git a/3rdparty/asio/include/asio/traits/set_error_free.hpp b/3rdparty/asio/include/asio/traits/set_error_free.hpp
new file mode 100644
index 00000000000..b7455be5025
--- /dev/null
+++ b/3rdparty/asio/include/asio/traits/set_error_free.hpp
@@ -0,0 +1,112 @@
+//
+// traits/set_error_free.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 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_TRAITS_SET_ERROR_FREE_HPP
+#define ASIO_TRAITS_SET_ERROR_FREE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/type_traits.hpp"
+
+#if defined(ASIO_HAS_DECLTYPE) \
+ && defined(ASIO_HAS_NOEXCEPT) \
+ && defined(ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+# define ASIO_HAS_DEDUCED_SET_ERROR_FREE_TRAIT 1
+#endif // defined(ASIO_HAS_DECLTYPE)
+ // && defined(ASIO_HAS_NOEXCEPT)
+ // && defined(ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace traits {
+
+template <typename T, typename E, typename = void>
+struct set_error_free_default;
+
+template <typename T, typename E, typename = void>
+struct set_error_free;
+
+} // namespace traits
+namespace detail {
+
+struct no_set_error_free
+{
+ ASIO_STATIC_CONSTEXPR(bool, is_valid = false);
+ ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
+};
+
+#if defined(ASIO_HAS_DEDUCED_SET_ERROR_FREE_TRAIT)
+
+template <typename T, typename E, typename = void>
+struct set_error_free_trait : no_set_error_free
+{
+};
+
+template <typename T, typename E>
+struct set_error_free_trait<T, E,
+ typename void_type<
+ decltype(set_error(declval<T>(), declval<E>()))
+ >::type>
+{
+ ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
+
+ using result_type = decltype(
+ set_error(declval<T>(), declval<E>()));
+
+ ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept(
+ set_error(declval<T>(), declval<E>())));
+};
+
+#else // defined(ASIO_HAS_DEDUCED_SET_ERROR_FREE_TRAIT)
+
+template <typename T, typename E, typename = void>
+struct set_error_free_trait :
+ conditional<
+ is_same<T, typename remove_reference<T>::type>::value
+ && is_same<E, typename decay<E>::type>::value,
+ typename conditional<
+ is_same<T, typename add_const<T>::type>::value,
+ no_set_error_free,
+ traits::set_error_free<typename add_const<T>::type, E>
+ >::type,
+ traits::set_error_free<
+ typename remove_reference<T>::type,
+ typename decay<E>::type>
+ >::type
+{
+};
+
+#endif // defined(ASIO_HAS_DEDUCED_SET_ERROR_FREE_TRAIT)
+
+} // namespace detail
+namespace traits {
+
+template <typename T, typename E, typename>
+struct set_error_free_default :
+ detail::set_error_free_trait<T, E>
+{
+};
+
+template <typename T, typename E, typename>
+struct set_error_free :
+ set_error_free_default<T, E>
+{
+};
+
+} // namespace traits
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_TRAITS_SET_ERROR_FREE_HPP