stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

2026-02-24 18:38:47 +00:00
parent da8c28aaeb
commit 65cb2619a7
13106 changed files with 2484322 additions and 1804 deletions
@@ -0,0 +1,40 @@
+/*!
+@file
+Defines `boost::hana::detail::nested_by`.
+
+@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_NESTED_BY_HPP
+#define BOOST_HANA_DETAIL_NESTED_BY_HPP
+
+#include <boost/hana/config.hpp>
+#include <boost/hana/detail/nested_by_fwd.hpp>
+
+#include <boost/hana/functional/flip.hpp>
+#include <boost/hana/functional/partial.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN namespace detail {
+    //! @cond
+    template <typename Algorithm>
+    template <typename Predicate, typename Object>
+    constexpr decltype(auto) nested_by_t<Algorithm>::
+    operator()(Predicate&& predicate, Object&& object) const {
+        return Algorithm{}(static_cast<Object&&>(object),
+                           static_cast<Predicate&&>(predicate));
+    }
+
+    template <typename Algorithm>
+    template <typename Predicate>
+    constexpr decltype(auto)
+    nested_by_t<Algorithm>::operator()(Predicate&& predicate) const {
+        return hana::partial(hana::flip(Algorithm{}),
+                             static_cast<Predicate&&>(predicate));
+    }
+    //! @endcond
+} BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_DETAIL_NESTED_BY_HPP