forked from boostorg/preprocessor
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
#ifndef BOOST_PREPROCESSOR_ENUM_SHIFTED_HPP
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#define BOOST_PREPROCESSOR_ENUM_SHIFTED_HPP
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/* Copyright (C) 2001
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* Housemarque Oy
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* http://www.housemarque.com
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*
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* Permission to copy, use, modify, sell and distribute this software is
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* granted provided this copyright notice appears in all copies. This
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* software is provided "as is" without express or implied warranty, and
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* with no claim as to its suitability for any purpose.
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*
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* See http://www.boost.org for most recent version.
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*/
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#include <boost/preprocessor/enum.hpp>
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#include <boost/preprocessor/dec.hpp>
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#include <boost/preprocessor/inc.hpp>
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/** <p>Generates a comma separated shifted list.</p>
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<p>In other words, expands to the sequence:</p>
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<pre>
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MACRO(1,DATA), MACRO(2,DATA), ..., MACRO(BOOST_PP_DEC(COUNT),DATA)
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</pre>
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<p>For example,</p>
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<pre>
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#define TYPED_PARAM(INDEX,DATA)\
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BOOST_PP_CAT(BOOST_PP_TUPLE_ELEM(2,0,DATA),INDEX) BOOST_PP_CAT(BOOST_PP_TUPLE_ELEM(2,1,DATA),INDEX)
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BOOST_PP_ENUM_SHIFTED(3,TYPED_PARAM,(X,x))
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</pre>
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<p>expands to:</p>
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<pre>
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X1 x1, X2 x2
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</pre>
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<h3>Uses</h3>
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<ul>
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<li>BOOST_PP_REPEAT()</li>
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</ul>
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*/
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#define BOOST_PP_ENUM_SHIFTED(COUNT,MACRO,DATA) BOOST_PP_ENUM(BOOST_PP_DEC(COUNT),BOOST_PP_ENUM_SHIFTED_F,(MACRO,DATA))
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#if !defined(BOOST_NO_COMPILER_CONFIG) && defined(__MWERKS__)
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# define BOOST_PP_ENUM_SHIFTED_F(I,FP) BOOST_PP_TUPLE_ELEM(2,0,FP)(BOOST_PP_INC(I),BOOST_PP_TUPLE_ELEM(2,1,FP))
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#else
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# define BOOST_PP_ENUM_SHIFTED_F(I,FP) BOOST_PP_TUPLE2_ELEM0 FP(BOOST_PP_INC(I),BOOST_PP_TUPLE2_ELEM1 FP)
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#endif
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#endif
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