Imported Upstream version 1.61.0

Change-Id: I96a1f878d1e6164f01e9aadd5147f38fca448d90
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/boost/hana/fwd/any_of.hpp b/boost/hana/fwd/any_of.hpp
new file mode 100644
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+++ b/boost/hana/fwd/any_of.hpp
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+/*!
+@file
+Forward declares `boost::hana::any_of`.
+
+@copyright Louis Dionne 2013-2016
+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_ANY_OF_HPP
+#define BOOST_HANA_FWD_ANY_OF_HPP
+
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/when.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    //! Returns whether any key of the structure satisfies the `predicate`.
+    //! @ingroup group-Searchable
+    //!
+    //! If the structure is not finite, `predicate` has to be satisfied
+    //! after looking at a finite number of keys for this method to finish.
+    //!
+    //!
+    //! @param xs
+    //! The structure to search.
+    //!
+    //! @param predicate
+    //! A function called as `predicate(k)`, where `k` is a key of the
+    //! structure, and returning a `Logical`.
+    //!
+    //!
+    //! Example
+    //! -------
+    //! @include example/any_of.cpp
+#ifdef BOOST_HANA_DOXYGEN_INVOKED
+    constexpr auto any_of = [](auto&& xs, auto&& predicate) {
+        return tag-dispatched;
+    };
+#else
+    template <typename S, typename = void>
+    struct any_of_impl : any_of_impl<S, when<true>> { };
+
+    struct any_of_t {
+        template <typename Xs, typename Pred>
+        constexpr auto operator()(Xs&& xs, Pred&& pred) const;
+    };
+
+    constexpr any_of_t any_of{};
+#endif
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_FWD_ANY_OF_HPP