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61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// Boost.Units - A C++ library for zero-overhead dimensional analysis and
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// unit/quantity manipulation and conversion
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//
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// Copyright (C) 2003-2008 Matthias Christian Schabel
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// Copyright (C) 2007-2008 Steven Watanabe
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_UNITS_MAKE_SCALED_UNIT_HPP_INCLUDED
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#define BOOST_UNITS_MAKE_SCALED_UNIT_HPP_INCLUDED
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#include <boost/units/units_fwd.hpp>
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#include <boost/units/heterogeneous_system.hpp>
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#include <boost/units/unit.hpp>
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namespace boost {
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namespace units {
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template<class Unit, class Scale>
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struct make_scaled_unit {
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typedef typename make_scaled_unit<typename reduce_unit<Unit>::type, Scale>::type type;
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};
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template<class Dimension, class UnitList, class OldScale, class Scale>
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struct make_scaled_unit<unit<Dimension, heterogeneous_system<heterogeneous_system_impl<UnitList, Dimension, OldScale> > >, Scale> {
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typedef unit<
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Dimension,
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heterogeneous_system<
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heterogeneous_system_impl<
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UnitList,
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Dimension,
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typename mpl::times<
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OldScale,
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list<scale_list_dim<Scale>, dimensionless_type>
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>::type
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>
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>
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> type;
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};
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template<class Dimension, class UnitList, class OldScale, long Base>
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struct make_scaled_unit<unit<Dimension, heterogeneous_system<heterogeneous_system_impl<UnitList, Dimension, OldScale> > >, scale<Base, static_rational<0> > > {
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typedef unit<
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Dimension,
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heterogeneous_system<
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heterogeneous_system_impl<
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UnitList,
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Dimension,
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OldScale
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>
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>
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> type;
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};
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}
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}
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#endif
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