python/include/boost/python/detail/make_tuple.hpp at python · boostorg/python · GitHub

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# ifndef BOOST_PYTHON_SYNOPSIS

# // Copyright David Abrahams 2002.

# // 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)

# if !defined(BOOST_PP_IS_ITERATING)

# error Boost.Python - do not include this file!

# endif

# define N BOOST_PP_ITERATION()

# define BOOST_PYTHON_MAKE_TUPLE_ARG(z, N, ignored) \

PyTuple_SET_ITEM( \

result.ptr() \

, N \

, python::incref(python::object(a##N).ptr()) \

);

template <BOOST_PP_ENUM_PARAMS_Z(1, N, class A)>

tuple

make_tuple(BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, A, const& a))

{

tuple result((detail::new_reference)::PyTuple_New(N));

BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_MAKE_TUPLE_ARG, _)

return result;

}

# undef BOOST_PYTHON_MAKE_TUPLE_ARG

# undef N

# endif // BOOST_PYTHON_SYNOPSIS

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