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

depends/x86_64-pc-linux-gnu/include/boost/hana/fwd/replicate.hpp

@@ -0,0 +1,75 @@
+/*!
+@file
+Forward declares `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_FWD_REPLICATE_HPP
+#define BOOST_HANA_FWD_REPLICATE_HPP
+
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/when.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    //! Create a monadic structure by combining a lifted value with itself
+    //! `n` times.
+    //! @ingroup group-MonadPlus
+    //!
+    //! Given a value `x`, a non-negative `IntegralConstant` `n` and the tag
+    //! of a monadic structure `M`, `replicate` creates a new monadic structure
+    //! which is the result of combining `x` with itself `n` times inside the
+    //! monadic structure. In other words, `replicate` simply `lift`s `x` into
+    //! the monadic structure, and then combines that with itself `n` times:
+    //! @code
+    //!     replicate<M>(x, n) == cycle(lift<M>(x), n)
+    //! @endcode
+    //!
+    //! If `n` is zero, then the identity of the `concat` operation is returned.
+    //! In the case of sequences, this corresponds to creating a new sequence
+    //! holding `n` copies of `x`.
+    //!
+    //!
+    //! Signature
+    //! ---------
+    //! Given an `IntegralConstant` `C` and MonadPlus `M`, the signature is
+    //! @f$ \mathtt{replicate}_M : T \times C \to M(T) @f$.
+    //!
+    //! @tparam M
+    //! The tag of the returned monadic structure. It must be a
+    //! model of the MonadPlus concept.
+    //!
+    //! @param x
+    //! The value to lift into a monadic structure and then combine with
+    //! itself.
+    //!
+    //! @param n
+    //! A non-negative `IntegralConstant` representing the number of times to
+    //! combine `lift<M>(x)` with itself. If `n == 0`, `replicate` returns
+    //! `empty<M>()`.
+    //!
+    //!
+    //! Example
+    //! -------
+    //! @include example/replicate.cpp
+#ifdef BOOST_HANA_DOXYGEN_INVOKED
+    template <typename M>
+    constexpr auto replicate = [](auto&& x, auto const& n) {
+        return tag-dispatched;
+    };
+#else
+    template <typename M, typename = void>
+    struct replicate_impl : replicate_impl<M, when<true>> { };
+
+    template <typename M>
+    struct replicate_t;
+
+    template <typename M>
+    constexpr replicate_t<M> replicate{};
+#endif
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_FWD_REPLICATE_HPP