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 +1,50 @@
+/*!
+@file
+Defines `boost::hana::zip`.
+
+@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_ZIP_HPP
+#define BOOST_HANA_ZIP_HPP
+
+#include <boost/hana/fwd/zip.hpp>
+
+#include <boost/hana/concept/sequence.hpp>
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/dispatch.hpp>
+#include <boost/hana/detail/fast_and.hpp>
+#include <boost/hana/tuple.hpp>
+#include <boost/hana/zip_with.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    //! @cond
+    template <typename Xs, typename ...Ys>
+    constexpr auto zip_t::operator()(Xs&& xs, Ys&& ...ys) const {
+    #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
+        static_assert(detail::fast_and<
+            hana::Sequence<Xs>::value, hana::Sequence<Ys>::value...
+        >::value,
+        "hana::zip(xs, ys...) requires 'xs' and 'ys...' to be Sequences");
+    #endif
+
+        return zip_impl<typename hana::tag_of<Xs>::type>::apply(
+            static_cast<Xs&&>(xs),
+            static_cast<Ys&&>(ys)...
+        );
+    }
+    //! @endcond
+
+    template <typename S, bool condition>
+    struct zip_impl<S, when<condition>> : default_ {
+        template <typename ...Xs>
+        static constexpr decltype(auto) apply(Xs&& ...xs) {
+            return hana::zip_with(hana::make_tuple, static_cast<Xs&&>(xs)...);
+        }
+    };
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_ZIP_HPP