Added boost header

test/external/boost/units/units_fwd.hpp

@@ -0,0 +1,73 @@
+// 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) 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_UNITS_UNITS_FWD_HPP
+#define BOOST_UNITS_UNITS_FWD_HPP
+
+///
+/// \file
+/// \brief Forward declarations of library components.
+/// \details Forward declarations of units library - dimensions, systems, quantity and string components.
+///
+
+#ifndef BOOST_UNITS_DOXYGEN
+
+#include <string>
+
+namespace boost {
+
+namespace units {
+
+template<typename T,typename V> struct dim;
+template<typename T> struct is_dim;
+
+struct dimensionless_type;
+template<class Item,class Next> struct list;
+template<typename Seq> struct make_dimension_list;
+
+template<class T> struct is_dimensionless;
+template<class S1,class S2> struct is_implicitly_convertible;
+template<class T> struct get_dimension;
+template<class T> struct get_system;
+
+template<class Y> class absolute;
+
+template<class Dim,class System, class Enable=void> class unit;
+
+template<long Base, class Exponent> struct scale;
+
+template<class BaseUnitTag> struct base_unit_info;
+template<class System> struct dimensionless_unit;
+template<class T> struct is_unit;
+template<class T,class Dim> struct is_unit_of_dimension;
+template<class T,class System> struct is_unit_of_system;
+
+template<class Unit,class Y> class quantity;
+
+template<class System,class Y> struct dimensionless_quantity;
+template<class T> struct is_quantity;
+template<class T,class Dim> struct is_quantity_of_dimension;
+template<class T,class System> struct is_quantity_of_system;
+
+template<class From,class To> struct conversion_helper;
+
+template<class T> std::string to_string(const T&);
+template<class T> std::string name_string(const T&);
+template<class T> std::string symbol_string(const T&);
+template<class T> std::string raw_string(const T&);
+template<class T> std::string typename_string(const T&);
+
+} // namespace units
+
+} // namespace boost
+
+#endif
+
+#endif // BOOST_UNITS_UNITS_FWD_HPP