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// Copyright (C) 2009-2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/local_function
#ifndef BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_VALIDATE_THIS_COUNT_HPP_
#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_VALIDATE_THIS_COUNT_HPP_
#include <boost/local_function/aux_/preprocessor/traits/decl_/set_error.hpp>
#include <boost/local_function/aux_/preprocessor/traits/decl_const_binds.hpp>
#include <boost/local_function/aux_/preprocessor/traits/decl_binds.hpp>
#include <boost/preprocessor/control/iif.hpp>
#include <boost/preprocessor/facilities/empty.hpp>
#include <boost/preprocessor/tuple/eat.hpp>
#include <boost/preprocessor/comparison/greater.hpp>
#include <boost/preprocessor/list/append.hpp>
#include <boost/preprocessor/list/size.hpp>
// PUBLIC //
#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_VALIDATE_THIS_COUNT( \
decl_traits) \
BOOST_PP_IIF(BOOST_PP_GREATER(BOOST_PP_LIST_SIZE(BOOST_PP_LIST_APPEND( \
BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_CONST_BIND_THIS_TYPES( \
decl_traits), \
BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_BIND_THIS_TYPES( \
decl_traits))), \
1), \
BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SET_ERROR \
, /* do nothing (keeping previous error, if any) */ \
decl_traits BOOST_PP_TUPLE_EAT(2) \
)(decl_traits, /* trailing `EMPTY` because error might not be present */ \
ERROR_cannot_bind_object_this_multiple_times BOOST_PP_EMPTY)
#endif // #include guard