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 +1,74 @@
+/*!
+@file
+Defines `boost::hana::replicate`.
+
+@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_REPLICATE_HPP
+#define BOOST_HANA_REPLICATE_HPP
+
+#include <boost/hana/fwd/replicate.hpp>
+
+#include <boost/hana/concept/integral_constant.hpp>
+#include <boost/hana/concept/monad_plus.hpp>
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/dispatch.hpp>
+#include <boost/hana/core/make.hpp>
+#include <boost/hana/cycle.hpp>
+#include <boost/hana/lift.hpp>
+
+#include <cstddef>
+#include <utility>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    template <typename M>
+    struct replicate_t {
+    #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
+        static_assert(hana::MonadPlus<M>::value,
+        "hana::replicate<M>(x, n) requires 'M' to be a MonadPlus");
+    #endif
+
+        template <typename X, typename N>
+        constexpr auto operator()(X&& x, N const& n) const {
+            using Replicate = BOOST_HANA_DISPATCH_IF(replicate_impl<M>,
+                hana::MonadPlus<M>::value &&
+                hana::IntegralConstant<N>::value
+            );
+
+        #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
+            static_assert(hana::IntegralConstant<N>::value,
+            "hana::replicate<M>(x, n) requires 'n' to be an IntegralConstant");
+        #endif
+
+            return Replicate::apply(static_cast<X&&>(x), n);
+        }
+    };
+
+    template <typename M, bool condition>
+    struct replicate_impl<M, when<condition>> : default_ {
+        template <typename X, typename N>
+        static constexpr auto apply(X&& x, N const& n) {
+            return hana::cycle(hana::lift<M>(static_cast<X&&>(x)), n);
+        }
+    };
+
+    template <typename S>
+    struct replicate_impl<S, when<Sequence<S>::value>> {
+        template <typename X, std::size_t ...i>
+        static constexpr auto replicate_helper(X&& x, std::index_sequence<i...>)
+        { return hana::make<S>(((void)i, x)...); }
+
+        template <typename X, typename N>
+        static constexpr auto apply(X&& x, N const&) {
+            constexpr std::size_t n = N::value;
+            return replicate_helper(static_cast<X&&>(x),
+                                    std::make_index_sequence<n>{});
+        }
+    };
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_REPLICATE_HPP