projects / ceph.git / blame
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| 7c673cae FG |
1 | // Copyright David Abrahams, Daniel Wallin 2003. Use, modification and |
| 2 | // distribution is subject to the Boost Software License, Version 1.0. | |
| 3 | // (See accompanying file LICENSE_1_0.txt or copy at | |
| 4 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 5 | ||
| 6 | #ifndef BOOST_PARAMETER_MACROS_050412_HPP | |
| 7 | #define BOOST_PARAMETER_MACROS_050412_HPP | |
| 8 | ||
| 9 | #include <boost/preprocessor/tuple/elem.hpp> | |
| 10 | #include <boost/preprocessor/repetition/repeat_from_to.hpp> | |
| 11 | #include <boost/preprocessor/arithmetic/inc.hpp> | |
| 12 | #include <boost/preprocessor/logical/bool.hpp> | |
| 13 | #include <boost/preprocessor/punctuation/comma_if.hpp> | |
| 14 | #include <boost/preprocessor/control/expr_if.hpp> | |
| 15 | #include <boost/preprocessor/repetition/enum_params.hpp> | |
| 16 | #include <boost/preprocessor/repetition/enum_binary_params.hpp> | |
| 17 | #include <boost/preprocessor/cat.hpp> | |
| 18 | #include <boost/detail/workaround.hpp> | |
| 19 | ||
| 20 | #define BOOST_PARAMETER_FUN_TEMPLATE_HEAD1(n) \ | |
| 21 | template<BOOST_PP_ENUM_PARAMS(n, class T)> | |
| 22 | ||
| 23 | #define BOOST_PARAMETER_FUN_TEMPLATE_HEAD0(n) | |
| 24 | ||
| 25 | #if ! defined(BOOST_NO_SFINAE) && ! BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592)) | |
| 26 | ||
| 27 | # define BOOST_PARAMETER_MATCH_TYPE(n, param) \ | |
| 28 | BOOST_PP_EXPR_IF(n, typename) param::match \ | |
| 29 | < \ | |
| 30 | BOOST_PP_ENUM_PARAMS(n, T) \ | |
| 31 | >::type | |
| 32 | ||
| 33 | #else | |
| 34 | ||
| 35 | # define BOOST_PARAMETER_MATCH_TYPE(n, param) param | |
| 36 | ||
| 37 | #endif | |
| 38 | ||
| 39 | #define BOOST_PARAMETER_FUN_DECL(z, n, params) \ | |
| 40 | \ | |
| 41 | BOOST_PP_CAT(BOOST_PARAMETER_FUN_TEMPLATE_HEAD, BOOST_PP_BOOL(n))(n) \ | |
| 42 | \ | |
| 43 | BOOST_PP_TUPLE_ELEM(3, 0, params) \ | |
| 44 | BOOST_PP_TUPLE_ELEM(3, 1, params)( \ | |
| 45 | BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& p) \ | |
| 46 | BOOST_PP_COMMA_IF(n) \ | |
| 47 | BOOST_PARAMETER_MATCH_TYPE(n,BOOST_PP_TUPLE_ELEM(3, 2, params)) \ | |
| 48 | kw = BOOST_PP_TUPLE_ELEM(3, 2, params)() \ | |
| 49 | ) \ | |
| 50 | { \ | |
| 51 | return BOOST_PP_CAT(BOOST_PP_TUPLE_ELEM(3, 1, params), _with_named_params)( \ | |
| 52 | kw(BOOST_PP_ENUM_PARAMS(n, p)) \ | |
| 53 | ); \ | |
| 54 | } | |
| 55 | ||
| 56 | // Generates: | |
| 57 | // | |
| 58 | // template<class Params> | |
| 59 | // ret name ## _with_named_params(Params const&); | |
| 60 | // | |
| 61 | // template<class T0> | |
| 62 | // ret name(T0 const& p0, typename parameters::match<T0>::type kw = parameters()) | |
| 63 | // { | |
| 64 | // return name ## _with_named_params(kw(p0)); | |
| 65 | // } | |
| 66 | // | |
| 67 | // template<class T0, ..., class TN> | |
| 68 | // ret name(T0 const& p0, ..., TN const& PN | |
| 69 | // , typename parameters::match<T0, ..., TN>::type kw = parameters()) | |
| 70 | // { | |
| 71 | // return name ## _with_named_params(kw(p0, ..., pN)); | |
| 72 | // } | |
| 73 | // | |
| 74 | // template<class Params> | |
| 75 | // ret name ## _with_named_params(Params const&) | |
| 76 | // | |
| 77 | // lo and hi determines the min and max arity of the generated functions. | |
| 78 | ||
| 79 | #define BOOST_PARAMETER_FUN(ret, name, lo, hi, parameters) \ | |
| 80 | \ | |
| 81 | template<class Params> \ | |
| 82 | ret BOOST_PP_CAT(name, _with_named_params)(Params const& p); \ | |
| 83 | \ | |
| 84 | BOOST_PP_REPEAT_FROM_TO( \ | |
| 85 | lo, BOOST_PP_INC(hi), BOOST_PARAMETER_FUN_DECL, (ret, name, parameters)) \ | |
| 86 | \ | |
| 87 | template<class Params> \ | |
| 88 | ret BOOST_PP_CAT(name, _with_named_params)(Params const& p) | |
| 89 | ||
| 90 | #define BOOST_PARAMETER_MEMFUN(ret, name, lo, hi, parameters) \ | |
| 91 | \ | |
| 92 | BOOST_PP_REPEAT_FROM_TO( \ | |
| 93 | lo, BOOST_PP_INC(hi), BOOST_PARAMETER_FUN_DECL, (ret, name, parameters)) \ | |
| 94 | \ | |
| 95 | template<class Params> \ | |
| 96 | ret BOOST_PP_CAT(name, _with_named_params)(Params const& p) | |
| 97 | ||
| 98 | #endif // BOOST_PARAMETER_MACROS_050412_HPP | |
| 99 |