Initial Commit

.svn/pristine/83/835440ab652143ba77f0259da30950927a345058.svn-base

@@ -0,0 +1,50 @@
+//---------------------------------------------------------------------------//
+// Copyright (c) 2013-2014 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://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#ifndef BOOST_COMPUTE_DETAIL_DURATION_HPP
+#define BOOST_COMPUTE_DETAIL_DURATION_HPP
+
+#include <boost/config.hpp>
+
+#ifndef BOOST_COMPUTE_NO_HDR_CHRONO
+#include <chrono>
+#endif
+
+#include <boost/chrono/duration.hpp>
+
+namespace boost {
+namespace compute {
+namespace detail {
+
+#ifndef BOOST_COMPUTE_NO_HDR_CHRONO
+template<class Rep, class Period>
+inline std::chrono::duration<Rep, Period>
+make_duration_from_nanoseconds(std::chrono::duration<Rep, Period>, size_t nanoseconds)
+{
+    return std::chrono::duration_cast<std::chrono::duration<Rep, Period> >(
+        std::chrono::nanoseconds(nanoseconds)
+    );
+}
+#endif // BOOST_COMPUTE_NO_HDR_CHRONO
+
+template<class Rep, class Period>
+inline boost::chrono::duration<Rep, Period>
+make_duration_from_nanoseconds(boost::chrono::duration<Rep, Period>, size_t nanoseconds)
+{
+    return boost::chrono::duration_cast<boost::chrono::duration<Rep, Period> >(
+        boost::chrono::nanoseconds(nanoseconds)
+    );
+}
+
+} // end detail namespace
+} // end compute namespace
+} // end boost namespace
+
+#endif // BOOST_COMPUTE_DETAIL_DURATION_HPP