/usr/include/boost/python/object/make_holder.hpp is in libboost1.55-dev 1.55.0+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright David Abrahams 2001.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
# ifndef MAKE_HOLDER_DWA20011215_HPP
# define MAKE_HOLDER_DWA20011215_HPP
# include <boost/python/detail/prefix.hpp>
# include <boost/python/object/instance.hpp>
# include <boost/python/converter/registry.hpp>
#if !defined( BOOST_PYTHON_NO_PY_SIGNATURES) && defined( BOOST_PYTHON_PY_SIGNATURES_PROPER_INIT_SELF_TYPE)
# include <boost/python/detail/python_type.hpp>
#endif
# include <boost/python/object/forward.hpp>
# include <boost/python/detail/preprocessor.hpp>
# include <boost/mpl/next.hpp>
# include <boost/mpl/begin_end.hpp>
# include <boost/mpl/deref.hpp>
# include <boost/preprocessor/iterate.hpp>
# include <boost/preprocessor/iteration/local.hpp>
# include <boost/preprocessor/repeat.hpp>
# include <boost/preprocessor/debug/line.hpp>
# include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp>
# include <cstddef>
namespace boost { namespace python { namespace objects {
template <int nargs> struct make_holder;
# define BOOST_PYTHON_DO_FORWARD_ARG(z, index, _) , f##index(a##index)
// specializations...
# define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/object/make_holder.hpp>))
# include BOOST_PP_ITERATE()
# undef BOOST_PYTHON_DO_FORWARD_ARG
}}} // namespace boost::python::objects
# endif // MAKE_HOLDER_DWA20011215_HPP
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, make_holder.hpp)
# endif
# define N BOOST_PP_ITERATION()
template <>
struct make_holder<N>
{
template <class Holder, class ArgList>
struct apply
{
# if N
// Unrolled iteration through each argument type in ArgList,
// choosing the type that will be forwarded on to the holder's
// templated constructor.
typedef typename mpl::begin<ArgList>::type iter0;
# define BOOST_PP_LOCAL_MACRO(n) \
typedef typename mpl::deref<iter##n>::type t##n; \
typedef typename forward<t##n>::type f##n; \
typedef typename mpl::next<iter##n>::type \
BOOST_PP_CAT(iter,BOOST_PP_INC(n)); // Next iterator type
# define BOOST_PP_LOCAL_LIMITS (0, N-1)
# include BOOST_PP_LOCAL_ITERATE()
# endif
static void execute(
#if !defined( BOOST_PYTHON_NO_PY_SIGNATURES) && defined( BOOST_PYTHON_PY_SIGNATURES_PROPER_INIT_SELF_TYPE)
boost::python::detail::python_class<BOOST_DEDUCED_TYPENAME Holder::value_type> *p
#else
PyObject *p
#endif
BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, t, a))
{
typedef instance<Holder> instance_t;
void* memory = Holder::allocate(p, offsetof(instance_t, storage), sizeof(Holder));
try {
(new (memory) Holder(
p BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_DO_FORWARD_ARG, nil)))->install(p);
}
catch(...) {
Holder::deallocate(p, memory);
throw;
}
}
};
};
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif
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