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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_SIGN_VALIDATE_HPP_
#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_HPP_
#include <boost/local_function/aux_/preprocessor/traits/decl_sign_/validate_/defaults.hpp>
#include <boost/local_function/aux_/preprocessor/traits/decl_sign_/validate_/this.hpp>
#include <boost/preprocessor/tuple/eat.hpp>
// PRIVATE //
#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_1_(sign, error) \
BOOST_PP_IIF(BOOST_PP_IS_EMPTY(error(/* expand empty */)), \
BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_THIS \
, \
error BOOST_PP_TUPLE_EAT(1) \
)(sign)
// PUBLIC //
// Validate params before starting to parse it.
#define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE(sign) \
BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_1_(sign, \
BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_SIGN_VALIDATE_DEFAULTS(sign))
#endif // #include guard
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