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+//---------------------------------------------------------------------------//
+// Copyright (c) 2013 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_CONTAINER_DETAIL_SCALAR_HPP
+#define BOOST_COMPUTE_CONTAINER_DETAIL_SCALAR_HPP
+
+#include <boost/compute/buffer.hpp>
+#include <boost/compute/detail/read_write_single_value.hpp>
+
+namespace boost {
+namespace compute {
+namespace detail {
+
+// scalar<T> provides a trivial "container" that stores a
+// single value in a memory buffer on a compute device
+template<class T>
+class scalar
+{
+public:
+ typedef T value_type;
+
+ scalar(const context &context)
+ : m_buffer(context, sizeof(T))
+ {
+ }
+
+ ~scalar()
+ {
+ }
+
+ T read(command_queue &queue) const
+ {
+ return read_single_value<T>(m_buffer, 0, queue);
+ }
+
+ void write(const T &value, command_queue &queue)
+ {
+ write_single_value<T>(value, m_buffer, 0, queue);
+ }
+
+ const buffer& get_buffer() const
+ {
+ return m_buffer;
+ }
+
+private:
+ buffer m_buffer;
+};
+
+} // end detail namespace
+} // end compute namespace
+} // end boost namespace
+
+#endif // BOOST_COMPUTE_CONTAINER_DETAIL_SCALAR_HPP