python/include/boost/python/detail/value_arg.hpp at python · boostorg/python · GitHub

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// Copyright David Abrahams 2004. 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 VALUE_ARG_DWA2004312_HPP

# define VALUE_ARG_DWA2004312_HPP

# include <boost/python/detail/copy_ctor_mutates_rhs.hpp>

# include <boost/mpl/if.hpp>

# include <boost/python/detail/indirect_traits.hpp>

namespace boost { namespace python { namespace detail {

template <class T>

struct value_arg

: mpl::if_<

copy_ctor_mutates_rhs<T>

, T

, typename add_lvalue_reference<

typename add_const<T>::type

>::type

{};

}}} // namespace boost::python::detail

#endif // VALUE_ARG_DWA2004312_HPP

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