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

depends/x86_64-pc-linux-gnu/include/boost/compute/utility/invoke.hpp

@@ -0,0 +1,71 @@
+//---------------------------------------------------------------------------//
+// Copyright (c) 2013-2015 Kyle Lutz <kyle.r.lutz@gmail.com>
+//
+// 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
+//
+// See http://kylelutz.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#ifndef BOOST_COMPUTE_UTILITY_INVOKE_HPP
+#define BOOST_COMPUTE_UTILITY_INVOKE_HPP
+
+#include <boost/preprocessor/enum.hpp>
+#include <boost/preprocessor/repetition.hpp>
+
+#include <boost/compute/config.hpp>
+#include <boost/compute/command_queue.hpp>
+#include <boost/compute/detail/meta_kernel.hpp>
+#include <boost/compute/container/detail/scalar.hpp>
+#include <boost/compute/type_traits/result_of.hpp>
+
+namespace boost {
+namespace compute {
+
+#define BOOST_COMPUTE_DETAIL_INVOKE_ARG(z, n, unused) \
+    BOOST_PP_COMMA_IF(n) k.var<BOOST_PP_CAT(T, n)>("arg" BOOST_PP_STRINGIZE(n))
+
+#define BOOST_COMPUTE_DETAIL_INVOKE_ADD_ARG(z, n, unused) \
+    k.add_set_arg("arg" BOOST_PP_STRINGIZE(n), BOOST_PP_CAT(arg, n));
+
+#define BOOST_COMPUTE_DETAIL_DEFINE_INVOKE(z, n, unused) \
+template<class Function, BOOST_PP_ENUM_PARAMS(n, class T)> \
+inline typename result_of<Function(BOOST_PP_ENUM_PARAMS(n, T))>::type \
+invoke(const Function& function, command_queue& queue, BOOST_PP_ENUM_BINARY_PARAMS(n, const T, &arg)) \
+{ \
+    typedef typename result_of<Function(BOOST_PP_ENUM_PARAMS(n, T))>::type result_type; \
+    detail::meta_kernel k("invoke"); \
+    detail::scalar<result_type> result(queue.get_context()); \
+    const size_t result_arg = k.add_arg<result_type *>(memory_object::global_memory, "result"); \
+    BOOST_PP_REPEAT(n, BOOST_COMPUTE_DETAIL_INVOKE_ADD_ARG, ~) \
+    k << "*result = " << function( \
+        BOOST_PP_REPEAT(n, BOOST_COMPUTE_DETAIL_INVOKE_ARG, ~) \
+    ) << ";"; \
+    k.set_arg(result_arg, result.get_buffer()); \
+    k.exec(queue); \
+    return result.read(queue); \
+}
+
+BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_DETAIL_DEFINE_INVOKE, ~)
+
+#undef BOOST_COMPUTE_DETAIL_INVOKE_ARG
+#undef BOOST_COMPUTE_DETAIL_INVOKE_ADD_ARG
+#undef BOOST_COMPUTE_DETAIL_DEFINE_INVOKE
+
+#ifdef BOOST_COMPUTE_DOXYGEN_INVOKED
+/// Invokes \p function with \p args on \p queue.
+///
+/// For example, to invoke the builtin abs() function:
+/// \code
+/// int result = invoke(abs<int>(), queue, -10); // returns 10
+/// \endcode
+template<class Function, class... Args>
+inline typename result_of<Function(Args...)>::type
+invoke(const Function& function, command_queue& queue, const Args&... args);
+#endif // BOOST_COMPUTE_DOXYGEN_INVOKED
+
+} // end compute namespace
+} // end boost namespace
+
+#endif // BOOST_COMPUTE_UTILITY_INVOKE_HPP