aux_/preprocessor/enum.hpp

0001
0002 #ifndef BOOST_MPL_AUX_PREPROCESSOR_ENUM_HPP_INCLUDED
0003 #define BOOST_MPL_AUX_PREPROCESSOR_ENUM_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 2000-2004
0006 //
0007 // Distributed under the Boost Software License, Version 1.0.
0008 // (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010 //
0011 // See http://www.boost.org/libs/mpl for documentation.
0012
0013 // $Id$
0014 // $Date$
0015 // $Revision$
0016
0017 #include <boost/mpl/aux_/config/preprocessor.hpp>
0018
0019 // BOOST_MPL_PP_ENUM(0,int): <nothing>
0020 // BOOST_MPL_PP_ENUM(1,int): int
0021 // BOOST_MPL_PP_ENUM(2,int): int, int
0022 // BOOST_MPL_PP_ENUM(n,int): int, int, .., int
0023
0024 #if !defined(BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES)
0025
0026 #   include <boost/preprocessor/cat.hpp>
0027
0028 #   define BOOST_MPL_PP_ENUM(n, param) \
0029     BOOST_PP_CAT(BOOST_MPL_PP_ENUM_,n)(param) \
0030     /**/
0031
0032 #   define BOOST_MPL_PP_ENUM_Z(z_ignored, n, param) \
0033     BOOST_PP_CAT(BOOST_MPL_PP_ENUM_,n)(param) \
0034     /**/
0035
0036 #   define BOOST_MPL_PP_ENUM_0(p)
0037 #   define BOOST_MPL_PP_ENUM_1(p) p
0038 #   define BOOST_MPL_PP_ENUM_2(p) p,p
0039 #   define BOOST_MPL_PP_ENUM_3(p) p,p,p
0040 #   define BOOST_MPL_PP_ENUM_4(p) p,p,p,p
0041 #   define BOOST_MPL_PP_ENUM_5(p) p,p,p,p,p
0042 #   define BOOST_MPL_PP_ENUM_6(p) p,p,p,p,p,p
0043 #   define BOOST_MPL_PP_ENUM_7(p) p,p,p,p,p,p,p
0044 #   define BOOST_MPL_PP_ENUM_8(p) p,p,p,p,p,p,p,p
0045 #   define BOOST_MPL_PP_ENUM_9(p) p,p,p,p,p,p,p,p,p
0046
0047 #else
0048
0049 #   include <boost/preprocessor/comma_if.hpp>
0050 #   include <boost/preprocessor/repeat.hpp>
0051
0052 #   define BOOST_MPL_PP_AUX_ENUM_FUNC(unused, i, param) \
0053     BOOST_PP_COMMA_IF(i) param \
0054     /**/
0055
0056 #   define BOOST_MPL_PP_ENUM(n, param) \
0057     BOOST_PP_REPEAT( \
0058           n \
0059         , BOOST_MPL_PP_AUX_ENUM_FUNC \
0060         , param \
0061         ) \
0062     /**/
0063
0064 #   define BOOST_MPL_PP_ENUM_Z(z, n, param) \
0065     BOOST_PP_REPEAT_ ## z( \
0066           n \
0067         , BOOST_MPL_PP_AUX_ENUM_FUNC \
0068         , param \
0069         ) \
0070     /**/
0071
0072 #endif
0073
0074 #endif // BOOST_MPL_AUX_PREPROCESSOR_ENUM_HPP_INCLUDED