ceph/src/boost/boost/python/detail/target.hpp

   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