stc/exp/ml_stc_linux_make_v1.0/include/boost/mpl/aux_/count_args.hpp

   1 \r
   2 // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION\r
   3 \r
   4 // Copyright Aleksey Gurtovoy 2000-2004\r
   5 //\r
   6 // Distributed under the Boost Software License, Version 1.0. \r
   7 // (See accompanying file LICENSE_1_0.txt or copy at \r
   8 // http://www.boost.org/LICENSE_1_0.txt)\r
   9 //\r
  10 // See http://www.boost.org/libs/mpl for documentation.\r
  11 \r
  12 // $Id: count_args.hpp 49267 2008-10-11 06:19:02Z agurtovoy $\r
  13 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $\r
  14 // $Revision: 49267 $\r
  15 \r
  16 #include <boost/preprocessor/expr_if.hpp>\r
  17 #include <boost/preprocessor/inc.hpp>\r
  18 #include <boost/preprocessor/cat.hpp>\r
  19 \r
  20 #if !defined(AUX778076_COUNT_ARGS_PARAM_NAME)\r
  21 #   define AUX778076_COUNT_ARGS_PARAM_NAME T\r
  22 #endif\r
  23 \r
  24 #if !defined(AUX778076_COUNT_ARGS_TEMPLATE_PARAM)\r
  25 #   define AUX778076_COUNT_ARGS_TEMPLATE_PARAM typename AUX778076_COUNT_ARGS_PARAM_NAME\r
  26 #endif\r
  27 \r
  28 // local macros, #undef-ined at the end of the header\r
  29 \r
  30 #if !defined(AUX778076_COUNT_ARGS_USE_STANDARD_PP_PRIMITIVES)\r
  31 \r
  32 #   include <boost/mpl/aux_/preprocessor/repeat.hpp>\r
  33 #   include <boost/mpl/aux_/preprocessor/params.hpp>\r
  34 \r
  35 #   define AUX778076_COUNT_ARGS_REPEAT BOOST_MPL_PP_REPEAT\r
  36 #   define AUX778076_COUNT_ARGS_PARAMS(param) \\r
  37     BOOST_MPL_PP_PARAMS( \\r
  38           AUX778076_COUNT_ARGS_ARITY \\r
  39         , param \\r
  40         ) \\r
  41     /**/\r
  42 \r
  43 #else\r
  44 \r
  45 #   include <boost/preprocessor/enum_shifted_params.hpp>\r
  46 #   include <boost/preprocessor/repeat.hpp>\r
  47 #   include <boost/preprocessor/inc.hpp>\r
  48 \r
  49 #   define AUX778076_COUNT_ARGS_REPEAT BOOST_PP_REPEAT\r
  50 #   define AUX778076_COUNT_ARGS_PARAMS(param) \\r
  51     BOOST_PP_ENUM_SHIFTED_PARAMS( \\r
  52           BOOST_PP_INC(AUX778076_COUNT_ARGS_ARITY) \\r
  53         , param \\r
  54         ) \\r
  55     /**/\r
  56 \r
  57 #endif // AUX778076_COUNT_ARGS_USE_STANDARD_PP_PRIMITIVES\r
  58 \r
  59 \r
  60 #define AUX778076_IS_ARG_TEMPLATE_NAME \\r
  61     BOOST_PP_CAT(is_,BOOST_PP_CAT(AUX778076_COUNT_ARGS_PREFIX,_arg)) \\r
  62 /**/\r
  63 \r
  64 #define AUX778076_COUNT_ARGS_FUNC(unused, i, param) \\r
  65     BOOST_PP_EXPR_IF(i, +) \\r
  66     AUX778076_IS_ARG_TEMPLATE_NAME<BOOST_PP_CAT(param,BOOST_PP_INC(i))>::value \\r
  67 /**/\r
  68 \r
  69 // is_<xxx>_arg\r
  70 template< AUX778076_COUNT_ARGS_TEMPLATE_PARAM >\r
  71 struct AUX778076_IS_ARG_TEMPLATE_NAME\r
  72 {\r
  73     BOOST_STATIC_CONSTANT(bool, value = true);\r
  74 };\r
  75 \r
  76 template<>\r
  77 struct AUX778076_IS_ARG_TEMPLATE_NAME<AUX778076_COUNT_ARGS_DEFAULT>\r
  78 {\r
  79     BOOST_STATIC_CONSTANT(bool, value = false);\r
  80 };\r
  81 \r
  82 // <xxx>_count_args\r
  83 template<\r
  84       AUX778076_COUNT_ARGS_PARAMS(AUX778076_COUNT_ARGS_TEMPLATE_PARAM)\r
  85     >\r
  86 struct BOOST_PP_CAT(AUX778076_COUNT_ARGS_PREFIX,_count_args)\r
  87 {\r
  88     BOOST_STATIC_CONSTANT(int, value = AUX778076_COUNT_ARGS_REPEAT(\r
  89           AUX778076_COUNT_ARGS_ARITY\r
  90         , AUX778076_COUNT_ARGS_FUNC\r
  91         , AUX778076_COUNT_ARGS_PARAM_NAME\r
  92         ));\r
  93 };\r
  94 \r
  95 #undef AUX778076_COUNT_ARGS_FUNC\r
  96 #undef AUX778076_IS_ARG_TEMPLATE_NAME\r
  97 #undef AUX778076_COUNT_ARGS_PARAMS\r
  98 #undef AUX778076_COUNT_ARGS_REPEAT\r
  99 \r
 100 #undef AUX778076_COUNT_ARGS_ARITY\r
 101 #undef AUX778076_COUNT_ARGS_DEFAULT\r
 102 #undef AUX778076_COUNT_ARGS_PREFIX\r
 103 #undef AUX778076_COUNT_ARGS_USE_STANDARD_PP_PRIMITIVES\r
 104 #undef AUX778076_COUNT_ARGS_TEMPLATE_PARAM\r
 105 #undef AUX778076_COUNT_ARGS_PARAM_NAME\r