// Copyright Cromwell D. Enage 2019.
|
// 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_PARAMETER_AUX_IS_PLACEHOLDER_HPP
|
#define BOOST_PARAMETER_AUX_IS_PLACEHOLDER_HPP
|
|
#include <boost/parameter/config.hpp>
|
|
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
|
#include <boost/mp11/integral.hpp>
|
#else
|
#include <boost/mpl/bool.hpp>
|
#endif
|
|
namespace boost { namespace parameter { namespace aux {
|
|
template <typename T>
|
struct is_mpl_placeholder
|
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
|
: ::boost::mp11::mp_false
|
#else
|
: ::boost::mpl::false_
|
#endif
|
{
|
};
|
}}} // namespace boost::parameter::aux
|
|
#include <boost/mpl/arg_fwd.hpp>
|
|
namespace boost { namespace parameter { namespace aux {
|
|
template <int I>
|
struct is_mpl_placeholder< ::boost::mpl::arg<I> >
|
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
|
: ::boost::mp11::mp_true
|
#else
|
: ::boost::mpl::true_
|
#endif
|
{
|
};
|
}}} // namespace boost::parameter::aux
|
|
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
|
#include <boost/mp11/bind.hpp>
|
|
namespace boost { namespace parameter { namespace aux {
|
|
template <typename T>
|
struct is_mp11_placeholder : ::boost::mp11::mp_false
|
{
|
};
|
|
template < ::std::size_t I>
|
struct is_mp11_placeholder< ::boost::mp11::mp_arg<I> >
|
: ::boost::mp11::mp_true
|
{
|
};
|
}}} // namespace boost::parameter::aux
|
|
#endif // BOOST_PARAMETER_CAN_USE_MP11
|
#endif // include guard
|
