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 +1,54 @@
+/*!
+@file
+Defines `boost::hana::remove`.
+
+@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_REMOVE_HPP
+#define BOOST_HANA_REMOVE_HPP
+
+#include <boost/hana/fwd/remove.hpp>
+
+#include <boost/hana/concept/monad_plus.hpp>
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/dispatch.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/filter.hpp>
+#include <boost/hana/functional/compose.hpp>
+#include <boost/hana/not.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    //! @cond
+    template <typename Xs, typename Value>
+    constexpr auto remove_t::operator()(Xs&& xs, Value&& value) const {
+        using M = typename hana::tag_of<Xs>::type;
+        using Remove = BOOST_HANA_DISPATCH_IF(remove_impl<M>,
+            hana::MonadPlus<M>::value
+        );
+
+        #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
+            static_assert(hana::MonadPlus<M>::value,
+            "hana::remove(xs, value) requires 'xs' to be a MonadPlus");
+        #endif
+
+        return Remove::apply(static_cast<Xs&&>(xs),
+                             static_cast<Value&&>(value));
+    }
+    //! @endcond
+
+    template <typename M, bool condition>
+    struct remove_impl<M, when<condition>> : default_ {
+        template <typename Xs, typename Value>
+        static constexpr auto apply(Xs&& xs, Value&& value) {
+            return hana::filter(static_cast<Xs&&>(xs),
+                    hana::compose(hana::not_,
+                                  hana::equal.to(static_cast<Value&&>(value))));
+        }
+    };
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_REMOVE_HPP