forked from boostorg/mqtt5
927c1c6e3a
Summary: related to T13767 T13767 Reviewers: ivica Reviewed By: ivica Subscribers: miljen, iljazovic Differential Revision: https://repo.mireo.local/D29686
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
//
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// Copyright (c) 2023-2024 Ivica Siladic, Bruno Iljazovic, Korina Simicevic
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASYNC_MQTT5_TRAITS_HPP
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#define ASYNC_MQTT5_TRAITS_HPP
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#include <optional>
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#include <vector>
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#include <boost/container/small_vector.hpp>
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#include <boost/range/iterator_range_core.hpp>
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#include <boost/type_traits/remove_cv_ref.hpp>
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namespace async_mqtt5 {
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template <typename>
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constexpr bool is_optional_impl = false;
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template <typename T>
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constexpr bool is_optional_impl<std::optional<T>> = true;
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template <typename T>
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constexpr bool is_optional = is_optional_impl<boost::remove_cv_ref_t<T>>;
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template <typename, template <typename...> typename>
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constexpr bool is_specialization = false;
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template <template <typename...> typename T, typename... Args>
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constexpr bool is_specialization<T<Args...>, T> = true;
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template <typename T>
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constexpr bool is_vector = is_specialization<
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boost::remove_cv_ref_t<T>, std::vector
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>;
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template <typename... Args>
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constexpr std::true_type is_small_vector_impl(
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boost::container::small_vector_base<Args...> const &
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);
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constexpr std::false_type is_small_vector_impl( ... );
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template <typename T>
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constexpr bool is_small_vector =
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decltype(is_small_vector_impl(std::declval<T>()))::value;
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template <typename T>
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constexpr bool is_pair = is_specialization<
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boost::remove_cv_ref_t<T>, std::pair
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>;
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template <typename T>
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constexpr bool is_boost_iterator = is_specialization<
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boost::remove_cv_ref_t<T>, boost::iterator_range
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>;
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} // end namespace async_mqtt5
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#endif // !ASYNC_MQTT5_TRAITS_HPP
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