1 #if !defined(BOOST_PP_IS_ITERATING) 2 3 // Copyright David Abrahams 2002. 4 // Distributed under the Boost Software License, Version 1.0. (See 5 // accompanying file LICENSE_1_0.txt or copy at 6 // http://www.boost.org/LICENSE_1_0.txt) 7 8 # ifndef TARGET_DWA2002521_HPP 9 # define TARGET_DWA2002521_HPP 10 11 # include <boost/python/detail/preprocessor.hpp> 12 13 # include <boost/type.hpp> 14 15 # include <boost/preprocessor/comma_if.hpp> 16 # include <boost/preprocessor/if.hpp> 17 # include <boost/preprocessor/iterate.hpp> 18 # include <boost/preprocessor/debug/line.hpp> 19 # include <boost/preprocessor/enum_params.hpp> 20 # include <boost/preprocessor/repetition/enum_trailing_params.hpp> 21 22 namespace boost { namespace python { namespace detail { 23 24 # define BOOST_PP_ITERATION_PARAMS_1 \ 25 (4, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/detail/target.hpp>, BOOST_PYTHON_FUNCTION_POINTER)) 26 # include BOOST_PP_ITERATE() 27 28 # define BOOST_PP_ITERATION_PARAMS_1 \ 29 (4, (0, BOOST_PYTHON_CV_COUNT - 1, <boost/python/detail/target.hpp>, BOOST_PYTHON_POINTER_TO_MEMBER)) 30 # include BOOST_PP_ITERATE() 31 32 template <class R, class T> 33 T& (* target(R (T::*)) )() { return 0; } 34 35 }}} // namespace boost::python::detail 36 37 # endif // TARGET_DWA2002521_HPP 38 39 /* --------------- function pointers --------------- */ 40 // For gcc 4.4 compatability, we must include the 41 // BOOST_PP_ITERATION_DEPTH test inside an #else clause. 42 #else // BOOST_PP_IS_ITERATING 43 #if BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == BOOST_PYTHON_FUNCTION_POINTER 44 # if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \ 45 && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201))) 46 # line BOOST_PP_LINE(__LINE__, target.hpp(function_pointers)) 47 # endif 48 49 # define N BOOST_PP_ITERATION() 50 51 template <class R BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class A)> 52 BOOST_PP_IF(N, A0, void)(* target(R (*)(BOOST_PP_ENUM_PARAMS_Z(1, N, A))) )() 53 { 54 return 0; 55 } 56 57 # undef N 58 59 /* --------------- pointers-to-members --------------- */ 60 #elif BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == BOOST_PYTHON_POINTER_TO_MEMBER 61 // Outer over cv-qualifiers 62 63 # define BOOST_PP_ITERATION_PARAMS_2 (3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/detail/target.hpp>)) 64 # include BOOST_PP_ITERATE() 65 66 #elif BOOST_PP_ITERATION_DEPTH() == 2 67 # if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \ 68 && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201))) 69 # line BOOST_PP_LINE(__LINE__, target.hpp(pointers-to-members)) 70 # endif 71 // Inner over arities 72 73 # define N BOOST_PP_ITERATION() 74 # define Q BOOST_PYTHON_CV_QUALIFIER(BOOST_PP_RELATIVE_ITERATION(1)) 75 76 template <class R, class T BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class A)> 77 T& (* target(R (T::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, A)) Q) )() 78 { 79 return 0; 80 } 81 82 # undef N 83 # undef Q 84 85 #endif // BOOST_PP_ITERATION_DEPTH() 86 #endif 87