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// Copyright (C) 2009-2012 Lorenzo Caminiti
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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 a copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Home at http://www.boost.org/libs/local_function
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#ifndef BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_HPP_
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#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_HPP_
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#include <boost/local_function/aux_/preprocessor/traits/decl_sign_/validate_/defaults.hpp>
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#include <boost/local_function/aux_/preprocessor/traits/decl_sign_/validate_/this.hpp>
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#include <boost/preprocessor/tuple/eat.hpp>
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// PRIVATE //
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#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_1_(sign, error) \
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BOOST_PP_IIF(BOOST_PP_IS_EMPTY(error(/* expand empty */)), \
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BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_THIS \
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, \
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error BOOST_PP_TUPLE_EAT(1) \
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)(sign)
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// PUBLIC //
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// Validate params before starting to parse it.
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#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE(sign) \
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BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_1_(sign, \
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BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_DEFAULTS(sign))
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#endif // #include guard
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