FM / detail

/usr/include/boost/hana/detail

Name	Size	Mode	Actions
operators/	-	0755	rm
variadic/	-	0755	rm
algorithm.hpp	5973	0644	edit dl rm
any_of.hpp	1380	0644	edit dl rm
array.hpp	3374	0644	edit dl rm
canonical_constant.hpp	2700	0644	edit dl rm
concepts.hpp	3019	0644	edit dl rm
create.hpp	935	0644	edit dl rm
decay.hpp	1715	0644	edit dl rm
dispatch_if.hpp	2082	0644	edit dl rm
ebo.hpp	3874	0644	edit dl rm
fast_and.hpp	600	0644	edit dl rm
first_unsatisfied_index.hpp	1731	0644	edit dl rm
hash_table.hpp	5487	0644	edit dl rm
has_common_embedding.hpp	2473	0644	edit dl rm
has_duplicates.hpp	2337	0644	edit dl rm
index_if.hpp	1610	0644	edit dl rm
integral_constant.hpp	10052	0644	edit dl rm
intrinsics.hpp	1984	0644	edit dl rm
nested_by.hpp	1255	0644	edit dl rm
nested_by_fwd.hpp	1990	0644	edit dl rm
nested_than.hpp	854	0644	edit dl rm
nested_than_fwd.hpp	1624	0644	edit dl rm
nested_to.hpp	788	0644	edit dl rm
nested_to_fwd.hpp	1627	0644	edit dl rm
preprocessor.hpp	1435	0644	edit dl rm
std_common_type.hpp	1085	0644	edit dl rm
struct_macros.hpp	798577	0644	edit dl rm
type_at.hpp	1594	0644	edit dl rm
type_foldl1.hpp	3916	0644	edit dl rm
type_foldr1.hpp	3903	0644	edit dl rm
unpack_flatten.hpp	2416	0644	edit dl rm
void_t.hpp	518	0644	edit dl rm
wrong.hpp	861	0644	edit dl rm

Edit: /usr/include/boost/hana/detail/has_common_embedding.hpp (2473B)

/*!
@file
Defines `boost::hana::detail::has_[nontrivial_]common_embedding`.

@copyright Louis Dionne 2013-2017
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
 */

#ifndef BOOST_HANA_DETAIL_HAS_COMMON_EMBEDDING_HPP
#define BOOST_HANA_DETAIL_HAS_COMMON_EMBEDDING_HPP

#include <boost/hana/config.hpp>
#include <boost/hana/core/common.hpp>
#include <boost/hana/core/to.hpp>
#include <boost/hana/detail/void_t.hpp>

#include <type_traits>

BOOST_HANA_NAMESPACE_BEGIN namespace detail {
    template <template <typename...> class Concept, typename T, typename U, typename = void>
    struct has_common_embedding_impl : std::false_type { };

template <template <typename...> class Concept, typename T, typename U>
    struct has_common_embedding_impl<Concept, T, U, detail::void_t<
        typename common<T, U>::type
    >> {
        using Common = typename common<T, U>::type;
        using type = std::integral_constant<bool,
            Concept<T>::value &&
            Concept<U>::value &&
            Concept<Common>::value &&
            is_embedded<T, Common>::value &&
            is_embedded<U, Common>::value
        >;
    };

//! @ingroup group-details
    //! Returns whether `T` and `U` both have an embedding into a
    //! common type.
    //!
    //! If `T` and `U` do not have a common-type, this metafunction returns
    //! false.
    template <template <typename...> class Concept, typename T, typename U>
    using has_common_embedding = typename has_common_embedding_impl<Concept, T, U>::type;

template <template <typename...> class Concept, typename T, typename U>
    struct has_nontrivial_common_embedding_impl
        : has_common_embedding_impl<Concept, T, U>
    { };

template <template <typename...> class Concept, typename T>
    struct has_nontrivial_common_embedding_impl<Concept, T, T>
        : std::false_type
    { };

//! @ingroup group-details
    //! Returns whether `T` and `U` are distinct and both have an embedding
    //! into a common type.
    //!
    //! If `T` and `U` do not have a common-type, this metafunction returns
    //! false.
    template <template <typename...> class Concept, typename T, typename U>
    using has_nontrivial_common_embedding =
        typename has_nontrivial_common_embedding_impl<Concept, T, U>::type;
} BOOST_HANA_NAMESPACE_END

#endif // !BOOST_HANA_DETAIL_HAS_COMMON_EMBEDDING_HPP

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