Chris@16
|
1 // Copyright David Abrahams 2003.
|
Chris@16
|
2 // Distributed under the Boost Software License, Version 1.0. (See
|
Chris@16
|
3 // accompanying file LICENSE_1_0.txt or copy at
|
Chris@16
|
4 // http://www.boost.org/LICENSE_1_0.txt)
|
Chris@16
|
5 #ifndef NULLARY_FUNCTION_ADAPTOR_DWA2003824_HPP
|
Chris@16
|
6 # define NULLARY_FUNCTION_ADAPTOR_DWA2003824_HPP
|
Chris@16
|
7
|
Chris@16
|
8 # include <boost/python/detail/prefix.hpp>
|
Chris@16
|
9 # include <boost/preprocessor/iteration/local.hpp>
|
Chris@16
|
10 # include <boost/preprocessor/facilities/intercept.hpp>
|
Chris@16
|
11 # include <boost/preprocessor/repetition/enum_params.hpp>
|
Chris@16
|
12 # include <boost/preprocessor/repetition/enum_binary_params.hpp>
|
Chris@16
|
13
|
Chris@16
|
14 namespace boost { namespace python { namespace detail {
|
Chris@16
|
15
|
Chris@16
|
16 // nullary_function_adaptor -- a class template which ignores its
|
Chris@16
|
17 // arguments and calls a nullary function instead. Used for building
|
Chris@16
|
18 // error-reporting functions, c.f. pure_virtual
|
Chris@16
|
19 template <class NullaryFunction>
|
Chris@16
|
20 struct nullary_function_adaptor
|
Chris@16
|
21 {
|
Chris@16
|
22 nullary_function_adaptor(NullaryFunction fn)
|
Chris@16
|
23 : m_fn(fn)
|
Chris@16
|
24 {}
|
Chris@16
|
25
|
Chris@16
|
26 void operator()() const { m_fn(); }
|
Chris@16
|
27
|
Chris@16
|
28 # define BOOST_PP_LOCAL_MACRO(i) \
|
Chris@16
|
29 template <BOOST_PP_ENUM_PARAMS_Z(1, i, class A)> \
|
Chris@16
|
30 void operator()( \
|
Chris@16
|
31 BOOST_PP_ENUM_BINARY_PARAMS_Z(1, i, A, const& BOOST_PP_INTERCEPT) \
|
Chris@16
|
32 ) const \
|
Chris@16
|
33 { \
|
Chris@16
|
34 m_fn(); \
|
Chris@16
|
35 }
|
Chris@16
|
36
|
Chris@16
|
37 # define BOOST_PP_LOCAL_LIMITS (1, BOOST_PYTHON_MAX_ARITY)
|
Chris@16
|
38 # include BOOST_PP_LOCAL_ITERATE()
|
Chris@16
|
39
|
Chris@16
|
40 private:
|
Chris@16
|
41 NullaryFunction m_fn;
|
Chris@16
|
42 };
|
Chris@16
|
43
|
Chris@16
|
44 }}} // namespace boost::python::detail
|
Chris@16
|
45
|
Chris@16
|
46 #endif // NULLARY_FUNCTION_ADAPTOR_DWA2003824_HPP
|