forked from boostorg/preprocessor
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
#ifndef BOOST_PREPROCESSOR_TUPLE_EAT_HPP
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#define BOOST_PREPROCESSOR_TUPLE_EAT_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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/** <p>Expands to a macro that eats a tuple of the specified size.</p>
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<p>BOOST_PP_TUPLE_EAT() is designed to be used with BOOST_PP_IF() like
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BOOST_PP_EMPTY().</p>
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<p>For example,</p>
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<pre>
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BOOST_PP_IF(0,BOOST_PP_ENUM_PARAMS,BOOST_PP_TUPLE_EAT(2))(10,P)
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</pre>
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<p>expands to nothing.</p>
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*/
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#define BOOST_PP_TUPLE_EAT(SIZE_OF_TUPLE) BOOST_PP_TUPLE_EAT_DELAY(SIZE_OF_TUPLE)
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#define BOOST_PP_TUPLE_EAT_DELAY(N) BOOST_PP_TUPLE##N##_EAT
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#define BOOST_PP_TUPLE0_EAT()
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#define BOOST_PP_TUPLE1_EAT(A)
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#define BOOST_PP_TUPLE2_EAT(A,B)
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#define BOOST_PP_TUPLE3_EAT(A,B,C)
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#define BOOST_PP_TUPLE4_EAT(A,B,C,D)
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#define BOOST_PP_TUPLE5_EAT(A,B,C,D,E)
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#define BOOST_PP_TUPLE6_EAT(A,B,C,D,E,F)
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#define BOOST_PP_TUPLE7_EAT(A,B,C,D,E,F,G)
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#define BOOST_PP_TUPLE8_EAT(A,B,C,D,E,F,G,H)
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#define BOOST_PP_TUPLE9_EAT(A,B,C,D,E,F,G,H,I)
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#define BOOST_PP_TUPLE10_EAT(A,B,C,D,E,F,G,H,I,J)
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#define BOOST_PP_TUPLE11_EAT(A,B,C,D,E,F,G,H,I,J,K)
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#define BOOST_PP_TUPLE12_EAT(A,B,C,D,E,F,G,H,I,J,K,L)
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#define BOOST_PP_TUPLE13_EAT(A,B,C,D,E,F,G,H,I,J,K,L,M)
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#define BOOST_PP_TUPLE14_EAT(A,B,C,D,E,F,G,H,I,J,K,L,M,N)
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#define BOOST_PP_TUPLE15_EAT(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O)
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#define BOOST_PP_TUPLE16_EAT(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P)
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#endif
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