update boost

linx64/include/boost/hana/fwd/concept/applicative.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Applicative`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Applicative Applicative
     //! The `Applicative` concept represents `Functor`s with the ability
@@ -112,6 +112,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [1]: https://wiki.haskell.org/Typeclassopedia#Applicative
     template <typename A>
     struct Applicative;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_APPLICATIVE_HPP

linx64/include/boost/hana/fwd/concept/comonad.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Comonad`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     // Note: We use a multiline C++ comment because there's a double backslash
     // symbol in the documentation (for LaTeX), which triggers
     //      warning: multi-line comment [-Wcomment]
@@ -106,6 +106,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     */
     template <typename W>
     struct Comonad;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_COMONAD_HPP

linx64/include/boost/hana/fwd/concept/comparable.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Comparable`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Comparable Comparable
     //! The `Comparable` concept defines equality and inequality.
@@ -151,10 +151,10 @@ BOOST_HANA_NAMESPACE_BEGIN
     //!
     //! [1]: http://en.wikipedia.org/wiki/Equivalence_relation#Definition
     //! [2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3351.pdf
-    //! [3]: http://en.cppreference.com/w/cpp/concept/EqualityComparable
+    //! [3]: http://en.cppreference.com/w/cpp/named_req/EqualityComparable
     //! [4]: http://en.wikipedia.org/wiki/Injective_function
     template <typename T>
     struct Comparable;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_COMPARABLE_HPP

linx64/include/boost/hana/fwd/concept/constant.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Constant`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Constant Constant
     //! The `Constant` concept represents data that can be manipulated at
@@ -202,9 +202,9 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! reasons as explained above, this common type is still provided.
     //!
     //!
-    //! [1]: http://en.cppreference.com/w/cpp/concept/LiteralType
+    //! [1]: http://en.cppreference.com/w/cpp/named_req/LiteralType
     template <typename C>
     struct Constant;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_CONSTANT_HPP

linx64/include/boost/hana/fwd/concept/euclidean_ring.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::EuclideanRing`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-EuclideanRing Euclidean Ring
     //! The `EuclideanRing` concept represents a commutative `Ring` that
@@ -112,6 +112,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [1]: https://en.wikipedia.org/wiki/Euclidean_domain
     template <typename R>
     struct EuclideanRing;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_EUCLIDEAN_RING_HPP

linx64/include/boost/hana/fwd/concept/foldable.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Foldable`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Foldable Foldable
     //! The `Foldable` concept represents data structures that can be reduced
@@ -136,6 +136,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! course result in different effects.
     template <typename T>
     struct Foldable;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_FOLDABLE_HPP

linx64/include/boost/hana/fwd/concept/functor.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Functor`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Functor Functor
     //! The `Functor` concept represents types that can be mapped over.
@@ -134,6 +134,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [3]: http://en.wikipedia.org/wiki/Category_theory
     template <typename F>
     struct Functor;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_FUNCTOR_HPP

linx64/include/boost/hana/fwd/concept/group.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Group`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Group Group
     //! The `Group` concept represents `Monoid`s where all objects have
@@ -106,6 +106,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [2]: http://en.wikipedia.org/wiki/Group_homomorphism
     template <typename G>
     struct Group;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_GROUP_HPP

linx64/include/boost/hana/fwd/concept/hashable.hpp

@@ -2,8 +2,8 @@
 @file
 Forward declares `boost::hana::Hashable`.
 
-@copyright Louis Dionne 2016
-@copyright Jason Rice 2016
+Copyright Louis Dionne 2016
+Copyright Jason Rice 2016
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -14,7 +14,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Hashable Hashable
     //! The `Hashable` concept represents objects that can be normalized to
@@ -63,6 +63,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! types, and `signed long long` for signed integral types.
     template <typename T>
     struct Hashable;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_HASHABLE_HPP

linx64/include/boost/hana/fwd/concept/integral_constant.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::IntegralConstant`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! The `IntegralConstant` concept represents compile-time integral values.
     //!
@@ -68,6 +68,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! `hana::integral_constant`
     template <typename C>
     struct IntegralConstant;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_INTEGRAL_CONSTANT_HPP

linx64/include/boost/hana/fwd/concept/iterable.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Iterable`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Iterable Iterable
     //! The `Iterable` concept represents data structures supporting external
@@ -144,6 +144,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [1]: https://github.com/boostorg/hana/issues/40
     template <typename It>
     struct Iterable;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_ITERABLE_HPP

linx64/include/boost/hana/fwd/concept/logical.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Logical`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Logical Logical
     //! The `Logical` concept represents types with a truth value.
@@ -161,6 +161,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [1]: http://en.wikipedia.org/wiki/Boolean_algebra_(structure)
     template <typename L>
     struct Logical;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_LOGICAL_HPP

linx64/include/boost/hana/fwd/concept/metafunction.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Metafunction`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Metafunction Metafunction
     //! A `Metafunction` is a function that takes `hana::type`s as inputs and
@@ -90,10 +90,10 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! deep comparison. Hence, we adopt a conservative stance and avoid
     //! providing comparison for `Metafunction`s.
     //!
-    //! [1]: http://en.cppreference.com/w/cpp/concept/FunctionObject
+    //! [1]: http://en.cppreference.com/w/cpp/named_req/FunctionObject
     //! [2]: http://www.boost.org/doc/libs/release/libs/mpl/doc/refmanual/metafunction-class.html
     template <typename F>
     struct Metafunction;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_METAFUNCTION_HPP

linx64/include/boost/hana/fwd/concept/monad.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Monad`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Monad Monad
     //! The `Monad` concept represents `Applicative`s with the ability to
@@ -193,6 +193,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [2]: https://wiki.haskell.org/Typeclassopedia#Monad
     template <typename M>
     struct Monad;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_MONAD_HPP

linx64/include/boost/hana/fwd/concept/monad_plus.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::MonadPlus`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-MonadPlus MonadPlus
     //! The `MonadPlus` concept represents Monads with a monoidal structure.
@@ -84,6 +84,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [1]: https://en.wikibooks.org/wiki/Haskell/MonadPlus
     template <typename M>
     struct MonadPlus;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_MONAD_PLUS_HPP

linx64/include/boost/hana/fwd/concept/monoid.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Monoid`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Monoid Monoid
     //! The `Monoid` concept represents data types with an associative
@@ -96,6 +96,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [2]: http://en.wikipedia.org/wiki/Monoid#Monoid_homomorphisms
     template <typename M>
     struct Monoid;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_MONOID_HPP

linx64/include/boost/hana/fwd/concept/orderable.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Orderable`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Orderable Orderable
     //! The `Orderable` concept represents totally ordered data types.
@@ -177,11 +177,11 @@ BOOST_HANA_NAMESPACE_BEGIN
     //!
     //!
     //! [1]: http://en.wikipedia.org/wiki/Total_order
-    //! [2]: http://en.cppreference.com/w/cpp/concept/LessThanComparable
+    //! [2]: http://en.cppreference.com/w/cpp/named_req/LessThanComparable
     //! [3]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3351.pdf
     //! [4]: http://en.wikipedia.org/wiki/Strict_weak_ordering
     template <typename Ord>
     struct Orderable;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_ORDERABLE_HPP

linx64/include/boost/hana/fwd/concept/product.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Product`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Product Product
     //! Represents types that are generic containers of two elements.
@@ -98,6 +98,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [1]: http://en.wikipedia.org/wiki/Product_(category_theory)
     template <typename P>
     struct Product;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_PRODUCT_HPP

linx64/include/boost/hana/fwd/concept/ring.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Ring`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Ring Ring
     //! The `Ring` concept represents `Group`s that also form a `Monoid`
@@ -101,6 +101,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! [2]: http://en.wikipedia.org/wiki/Ring_homomorphism
     template <typename R>
     struct Ring;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_RING_HPP

linx64/include/boost/hana/fwd/concept/searchable.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Searchable`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Searchable Searchable
     //! The `Searchable` concept represents structures that can be searched.
@@ -138,6 +138,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! transformation.
     template <typename S>
     struct Searchable;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_SEARCHABLE_HPP

linx64/include/boost/hana/fwd/concept/sequence.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Sequence`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -14,7 +14,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/core/when.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Sequence Sequence
     //! The `Sequence` concept represents generic index-based sequences.
@@ -160,6 +160,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     template <typename S, typename = void>
     struct Sequence : Sequence<S, when<true>> { };
 #endif
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_SEQUENCE_HPP

linx64/include/boost/hana/fwd/concept/struct.hpp

@@ -2,7 +2,7 @@
 @file
 Forward declares `boost::hana::Struct`.
 
-@copyright Louis Dionne 2013-2017
+Copyright Louis Dionne 2013-2022
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  */
@@ -13,7 +13,7 @@ Distributed under the Boost Software License, Version 1.0.
 #include <boost/hana/config.hpp>
 
 
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
     //! @ingroup group-concepts
     //! @defgroup group-Struct Struct
     //! The `Struct` concept represents `struct`-like user-defined types.
@@ -151,6 +151,6 @@ BOOST_HANA_NAMESPACE_BEGIN
     //! @include example/struct/searchable.cpp
     template <typename S>
     struct Struct;
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
 
 #endif // !BOOST_HANA_FWD_CONCEPT_STRUCT_HPP