/usr/include/boost/asio/traits
Edit: /usr/include/boost/asio/traits/set_value_free.hpp (7662B)
//
// traits/set_value_free.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_SET_VALUE_FREE_HPP
#define BOOST_ASIO_TRAITS_SET_VALUE_FREE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include
#include
#include
#if defined(BOOST_ASIO_HAS_DECLTYPE) \
&& defined(BOOST_ASIO_HAS_NOEXCEPT) \
&& defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
# define BOOST_ASIO_HAS_DEDUCED_SET_VALUE_FREE_TRAIT 1
#endif // defined(BOOST_ASIO_HAS_DECLTYPE)
// && defined(BOOST_ASIO_HAS_NOEXCEPT)
// && defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
#include
namespace boost {
namespace asio {
namespace traits {
template
struct set_value_free_default;
template
struct set_value_free;
} // namespace traits
namespace detail {
struct no_set_value_free
{
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = false);
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
};
#if defined(BOOST_ASIO_HAS_DEDUCED_SET_VALUE_FREE_TRAIT)
template
struct set_value_free_trait : no_set_value_free
{
};
#if defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
template
struct set_value_free_trait(), declval()...))
>::type>
{
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
using result_type = decltype(
set_value(declval(), declval()...));
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept(
set_value(declval(), declval()...)));
};
#else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
template
struct set_value_free_trait()))
>::type>
{
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
using result_type = decltype(set_value(declval()));
BOOST_ASIO_STATIC_CONSTEXPR(bool,
is_noexcept = noexcept(set_value(declval())));
};
#define BOOST_ASIO_PRIVATE_SET_VALUE_FREE_TRAIT_DEF(n) \
template \
struct set_value_free_trait(), BOOST_ASIO_VARIADIC_DECLVAL(n))) \
>::type> \
{ \
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); \
\
using result_type = decltype( \
set_value(declval(), BOOST_ASIO_VARIADIC_DECLVAL(n))); \
\
BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept( \
set_value(declval(), BOOST_ASIO_VARIADIC_DECLVAL(n)))); \
}; \
/**/
BOOST_ASIO_VARIADIC_GENERATE(BOOST_ASIO_PRIVATE_SET_VALUE_FREE_TRAIT_DEF)
#undef BOOST_ASIO_PRIVATE_SET_VALUE_FREE_TRAIT_DEF
#endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
#else // defined(BOOST_ASIO_HAS_DEDUCED_SET_VALUE_FREE_TRAIT)
template
struct set_value_free_trait;
#if defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
template
struct set_value_free_trait :
conditional<
is_same::type>::value
&& conjunction::type>...>::value,
typename conditional<
is_same::type>::value,
no_set_value_free,
traits::set_value_free::type, void(Vs...)>
>::type,
traits::set_value_free<
typename remove_reference::type,
void(typename decay::type...)>
>::type
{
};
#else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
template
struct set_value_free_trait :
conditional<
is_same::type>::value,
typename conditional<
is_same::type>::value,
no_set_value_free,
traits::set_value_free::type, void()>
>::type,
traits::set_value_free::type, void()>
>::type
{
};
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME(n) \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_##n
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_1 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_2 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_1 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_3 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_2 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_4 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_3 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_5 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_4 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_6 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_5 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_7 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_6 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_8 \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_7 \
&& is_same::type>::value
#define BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF(n) \
template \
struct set_value_free_trait : \
conditional< \
is_same::type>::value \
BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME(n), \
typename conditional< \
is_same::type>::value, \
no_set_value_free, \
traits::set_value_free< \
typename add_const::type, \
void(BOOST_ASIO_VARIADIC_TARGS(n))> \
>::type, \
traits::set_value_free< \
typename remove_reference::type, \
void(BOOST_ASIO_VARIADIC_DECAY(n))> \
>::type \
{ \
}; \
/**/
BOOST_ASIO_VARIADIC_GENERATE(BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF)
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_1
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_2
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_3
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_4
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_5
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_6
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_7
#undef BOOST_ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_8
#endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
#endif // defined(BOOST_ASIO_HAS_DEDUCED_SET_VALUE_FREE_TRAIT)
} // namespace detail
namespace traits {
template
struct set_value_free_default :
detail::set_value_free_trait
{
};
template
struct set_value_free :
set_value_free_default
{
};
} // namespace traits
} // namespace asio
} // namespace boost
#include
#endif // BOOST_ASIO_TRAITS_SET_VALUE_FREE_HPP