FM / traits

/usr/include/boost/asio/traits

Name	Size	Mode	Actions
bulk_execute_free.hpp	3292	0644	edit dl rm
bulk_execute_member.hpp	3335	0644	edit dl rm
connect_free.hpp	2941	0644	edit dl rm
connect_member.hpp	2984	0644	edit dl rm
equality_comparable.hpp	2731	0644	edit dl rm
execute_free.hpp	2765	0644	edit dl rm
execute_member.hpp	2806	0644	edit dl rm
prefer_free.hpp	2852	0644	edit dl rm
prefer_member.hpp	2893	0644	edit dl rm
query_free.hpp	2827	0644	edit dl rm
query_member.hpp	2868	0644	edit dl rm
query_static_constexpr_member.hpp	3246	0644	edit dl rm
require_concept_free.hpp	3077	0644	edit dl rm
require_concept_member.hpp	3118	0644	edit dl rm
require_free.hpp	2877	0644	edit dl rm
require_member.hpp	2918	0644	edit dl rm
schedule_free.hpp	2733	0644	edit dl rm
schedule_member.hpp	2782	0644	edit dl rm
set_done_free.hpp	2733	0644	edit dl rm
set_done_member.hpp	2782	0644	edit dl rm
set_error_free.hpp	2993	0644	edit dl rm
set_error_member.hpp	3036	0644	edit dl rm
set_value_free.hpp	7662	0644	edit dl rm
set_value_member.hpp	7731	0644	edit dl rm
start_free.hpp	2655	0644	edit dl rm
start_member.hpp	2704	0644	edit dl rm
static_query.hpp	3067	0644	edit dl rm
static_require.hpp	3337	0644	edit dl rm
static_require_concept.hpp	3511	0644	edit dl rm
submit_free.hpp	2915	0644	edit dl rm
submit_member.hpp	2958	0644	edit dl rm

Edit: /usr/include/boost/asio/traits/static_query.hpp (3067B)

//
// traits/static_query.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 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 BOOST_ASIO_TRAITS_STATIC_QUERY_HPP
#define BOOST_ASIO_TRAITS_STATIC_QUERY_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/type_traits.hpp>

#if defined(BOOST_ASIO_HAS_DECLTYPE) \
  && defined(BOOST_ASIO_HAS_NOEXCEPT) \
  && defined(BOOST_ASIO_HAS_CONSTEXPR) \
  && defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) \
  && defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
# define BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT 1
#endif // defined(BOOST_ASIO_HAS_DECLTYPE)
       //   && defined(BOOST_ASIO_HAS_NOEXCEPT)
       //   && defined(BOOST_ASIO_HAS_CONSTEXPR)
       //   && defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
       //   && defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)

#include <boost/asio/detail/push_options.hpp>

namespace boost {
namespace asio {
namespace traits {

template <typename T, typename Property, typename = void>
struct static_query_default;

template <typename T, typename Property, typename = void>
struct static_query;

} // namespace traits
namespace detail {

struct no_static_query
{
  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = false);
  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
};

template <typename T, typename Property, typename = void>
struct static_query_trait :
  conditional<
    is_same<T, typename decay<T>::type>::value
      && is_same<Property, typename decay<Property>::type>::value,
    no_static_query,
    traits::static_query<
      typename decay<T>::type,
      typename decay<Property>::type>
  >::type
{
};

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)

template <typename T, typename Property>
struct static_query_trait<T, Property,
  typename void_type<
    decltype(decay<Property>::type::template static_query_v<T>)
  >::type>
{
  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);

using result_type = decltype(
      decay<Property>::type::template static_query_v<T>);

BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept =
    noexcept(decay<Property>::type::template static_query_v<T>));

static BOOST_ASIO_CONSTEXPR result_type value() noexcept(is_noexcept)
  {
    return decay<Property>::type::template static_query_v<T>;
  }
};

#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)

} // namespace detail
namespace traits {

template <typename T, typename Property, typename>
struct static_query_default : detail::static_query_trait<T, Property>
{
};

template <typename T, typename Property, typename>
struct static_query : static_query_default<T, Property>
{
};

} // namespace traits
} // namespace asio
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#endif // BOOST_ASIO_TRAITS_STATIC_QUERY_HPP

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