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