projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
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| 2 | // Copyright (C) 2009-2012 Lorenzo Caminiti | |
| 3 | // Distributed under the Boost Software License, Version 1.0 | |
| 4 | // (see accompanying file LICENSE_1_0.txt or a copy at | |
| 5 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | // Home at http://www.boost.org/libs/local_function | |
| 7 | ||
| 8 | #ifndef BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_HPP_ | |
| 9 | #define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_HPP_ | |
| 10 | ||
| 11 | #include <boost/local_function/aux_/preprocessor/traits/decl_/index.hpp> | |
| 12 | #include <boost/local_function/aux_/preprocessor/traits/param.hpp> | |
| 13 | #include <boost/local_function/detail/preprocessor/keyword/default.hpp> | |
| 14 | #include <boost/preprocessor/tuple/elem.hpp> | |
| 15 | #include <boost/preprocessor/tuple/eat.hpp> | |
| 16 | #include <boost/preprocessor/tuple/rem.hpp> | |
| 17 | #include <boost/preprocessor/arithmetic/inc.hpp> | |
| 18 | #include <boost/preprocessor/control/iif.hpp> | |
| 19 | #include <boost/preprocessor/logical/compl.hpp> | |
| 20 | #include <boost/preprocessor/facilities/is_empty.hpp> | |
| 21 | #include <boost/preprocessor/list/adt.hpp> | |
| 22 | #include <boost/preprocessor/list/fold_left.hpp> | |
| 23 | ||
| 24 | // PRIVATE // | |
| 25 | ||
| 26 | #define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_DEFAULT_OP_(s, \ | |
| 27 | default_count, param_traits) \ | |
| 28 | BOOST_PP_IIF(BOOST_PP_IS_EMPTY( \ | |
| 29 | BOOST_LOCAL_FUNCTION_AUX_PP_PARAM_TRAITS_DEFAULT(param_traits)), \ | |
| 30 | BOOST_PP_TUPLE_REM(1) \ | |
| 31 | , \ | |
| 32 | BOOST_PP_INC \ | |
| 33 | )(default_count) | |
| 34 | ||
| 35 | // Precondition: params is a pp-list which is not nil. | |
| 36 | #define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_DEFAULT_COUNT_(params) \ | |
| 37 | BOOST_PP_LIST_FOLD_LEFT( \ | |
| 38 | BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_DEFAULT_OP_, \ | |
| 39 | 0 /* start with defaults_count to 0 */, params) | |
| 40 | ||
| 41 | // PUBLIC // | |
| 42 | ||
| 43 | // Expand: pp-list of param-traits (no bound variables). | |
| 44 | #define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS(decl_traits) \ | |
| 45 | BOOST_PP_TUPLE_ELEM(BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_INDEX_MAX, \ | |
| 46 | BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_INDEX_PARAMS, decl_traits) | |
| 47 | ||
| 48 | // Expand: number of parameters with default values (0 if no default). | |
| 49 | #define BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_DEFAULT_COUNT( \ | |
| 50 | decl_traits) \ | |
| 51 | BOOST_PP_IIF(BOOST_PP_LIST_IS_CONS( \ | |
| 52 | BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS(decl_traits)), \ | |
| 53 | BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_DEFAULT_COUNT_ \ | |
| 54 | , \ | |
| 55 | 0 BOOST_PP_TUPLE_EAT(1) \ | |
| 56 | )(BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS(decl_traits)) | |
| 57 | ||
| 58 | #endif // #include guard | |
| 59 |