Added thirdparty: boost library

thirdparty/include/boost/parameter/aux_/result_of0.hpp

@@ -0,0 +1,53 @@
+// Copyright David Abrahams 2005.
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
+#define BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
+
+#include <boost/parameter/aux_/use_default_tag.hpp>
+#include <boost/parameter/config.hpp>
+#include <boost/utility/result_of.hpp>
+
+#if defined(BOOST_PARAMETER_CAN_USE_MP11)
+#include <boost/mp11/utility.hpp>
+#include <type_traits>
+#else
+#include <boost/mpl/if.hpp>
+#include <boost/type_traits/is_void.hpp>
+#endif
+
+namespace boost { namespace parameter { namespace aux {
+
+    // A metafunction returning the result of invoking
+    // a nullary function object of the given type.
+    template <typename F>
+    class result_of0
+    {
+#if defined(BOOST_NO_RESULT_OF)
+        typedef typename F::result_type result_of_F;
+#else
+        typedef typename ::boost::result_of<F()>::type result_of_F;
+#endif
+
+     public:
+#if defined(BOOST_PARAMETER_CAN_USE_MP11)
+        using type = ::boost::mp11::mp_if<
+            ::std::is_void<result_of_F>
+#else
+        typedef typename ::boost::mpl::if_<
+            ::boost::is_void<result_of_F>
+#endif
+          , ::boost::parameter::aux::use_default_tag
+          , result_of_F
+#if defined(BOOST_PARAMETER_CAN_USE_MP11)
+        >;
+#else
+        >::type type;
+#endif
+    };
+}}} // namespace boost::parameter::aux
+
+#endif  // include guard
+