ecency-mobile/ios/Pods/boost-for-react-native/boost/units/make_scaled_unit.hpp

61 lines
1.8 KiB
C++

// 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_UNITS_MAKE_SCALED_UNIT_HPP_INCLUDED
#define BOOST_UNITS_MAKE_SCALED_UNIT_HPP_INCLUDED
#include <boost/units/units_fwd.hpp>
#include <boost/units/heterogeneous_system.hpp>
#include <boost/units/unit.hpp>
namespace boost {
namespace units {
template<class Unit, class Scale>
struct make_scaled_unit {
typedef typename make_scaled_unit<typename reduce_unit<Unit>::type, Scale>::type type;
};
template<class Dimension, class UnitList, class OldScale, class Scale>
struct make_scaled_unit<unit<Dimension, heterogeneous_system<heterogeneous_system_impl<UnitList, Dimension, OldScale> > >, Scale> {
typedef unit<
Dimension,
heterogeneous_system<
heterogeneous_system_impl<
UnitList,
Dimension,
typename mpl::times<
OldScale,
list<scale_list_dim<Scale>, dimensionless_type>
>::type
>
>
> type;
};
template<class Dimension, class UnitList, class OldScale, long Base>
struct make_scaled_unit<unit<Dimension, heterogeneous_system<heterogeneous_system_impl<UnitList, Dimension, OldScale> > >, scale<Base, static_rational<0> > > {
typedef unit<
Dimension,
heterogeneous_system<
heterogeneous_system_impl<
UnitList,
Dimension,
OldScale
>
>
> type;
};
}
}
#endif