47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
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// Copyright Oliver Kowalke 2009.
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// Distributed under the Boost Software License, Version 1.0.
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// (See 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_COROUTINES_DETAIL_PARAM_H
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#define BOOST_COROUTINES_DETAIL_PARAM_H
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#include <boost/config.hpp>
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#include <boost/mpl/eval_if.hpp>
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#include <boost/mpl/identity.hpp>
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#include <boost/mpl/or.hpp>
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#include <boost/type_traits/add_reference.hpp>
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#include <boost/type_traits/is_reference.hpp>
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#include <boost/type_traits/is_scalar.hpp>
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#include <boost/type_traits/is_stateless.hpp>
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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namespace boost {
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namespace coroutines {
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namespace detail {
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template< typename T >
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struct param :
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public mpl::eval_if<
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mpl::or_<
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is_scalar< T >,
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is_stateless< T >,
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is_reference< T >
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>,
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mpl::identity< T >,
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add_reference< T >
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>
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{};
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}}}
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_SUFFIX
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#endif
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#endif // BOOST_COROUTINES_DETAIL_PARAM_H
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