Initial drop of Boost v1.44. This isn't the full library, just a subset that includes the more useful ones like shared_ptr and threads. Currently not wired into anything.

Boost/boost/units/base_units/metric/barn.hpp

@@ -0,0 +1,19 @@
+// Boost.Units - A C++ library for zero-overhead dimensional analysis and 
+// unit/quantity manipulation and conversion
+//
+// Copyright (C) 2003-2008 Matthias Christian Schabel
+// Copyright (C) 2007-2008 Steven Watanabe
+//
+// 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_UNIT_SYSTEMS_METRIC_BARN_HPP_INCLUDED
+#define BOOST_UNIT_SYSTEMS_METRIC_BARN_HPP_INCLUDED
+
+#include <boost/units/conversion.hpp>
+#include <boost/units/systems/si/area.hpp>
+
+BOOST_UNITS_DEFINE_BASE_UNIT_WITH_CONVERSIONS(metric, barn, "barn", "b", 1.0e-28, si::area, 11);
+
+#endif // BOOST_UNIT_SYSTEMS_METRIC_BARN_HPP_INCLUDED