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#ifndef BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS_HPP_
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#define BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS_HPP_
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// Copyright (C) 2008-2018 Lorenzo Caminiti
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// Distributed under the Boost Software License, Version 1.0 (see accompanying
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// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
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// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
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#include <boost/preprocessor/cat.hpp>
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#include <boost/preprocessor/variadic/size.hpp>
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/* PRIVATE */
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#define BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS_1 0
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#define BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS_2 1
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/* PUBLIC */
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// Precondition: A macro named `cat_to_comma_prefix ## token-to-check` must be
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// #defined to expand to `,`.
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// Precondition: tokens must start with a token concatenable to a macro name
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// (e.g., a literal or integral token).
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#define BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS( \
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cat_to_comma_prefix, tokens) \
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BOOST_PP_CAT(BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS_, \
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BOOST_PP_VARIADIC_SIZE(BOOST_PP_CAT(cat_to_comma_prefix, tokens)))
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#endif // #include guard
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