1# /* **************************************************************************
2# * *
3# * (C) Copyright Paul Mensonides 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# ************************************************************************** */
9#
10# /* Revised by Edward Diener (2020) */
11#
12# /* See http://www.boost.org for most recent version. */
13#
14# ifndef BOOST_PREPROCESSOR_CONTROL_DEDUCE_D_HPP
15# define BOOST_PREPROCESSOR_CONTROL_DEDUCE_D_HPP
16#
17# include <boost/preprocessor/config/config.hpp>
18#
19# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
20#
21# include <boost/preprocessor/control/while.hpp>
22# include <boost/preprocessor/detail/auto_rec.hpp>
23#
24# /* BOOST_PP_DEDUCE_D */
25#
26# define BOOST_PP_DEDUCE_D() BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 256)
27#
28# else
29#
30# include <boost/preprocessor/arithmetic/dec.hpp>
31# include <boost/preprocessor/control/while.hpp>
32# include <boost/preprocessor/detail/auto_rec.hpp>
33# include <boost/preprocessor/config/limits.hpp>
34#
35# /* BOOST_PP_DEDUCE_D */
36#
37# if BOOST_PP_LIMIT_WHILE == 256
38# define BOOST_PP_DEDUCE_D() BOOST_PP_DEC(BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 256))
39# elif BOOST_PP_LIMIT_WHILE == 512
40# define BOOST_PP_DEDUCE_D() BOOST_PP_DEC(BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 512))
41# elif BOOST_PP_LIMIT_WHILE == 1024
42# define BOOST_PP_DEDUCE_D() BOOST_PP_DEC(BOOST_PP_AUTO_REC(BOOST_PP_WHILE_P, 1024))
43# else
44# error Incorrect value for the BOOST_PP_LIMIT_WHILE limit
45# endif
46#
47# endif
48#
49# endif
50