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Updated arithmetic implementations to deal with corner cases whichy run out of WHILE loops.

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Edward Diener
2020-06-09 20:54:12 -04:00
parent d41d1dda97
commit 13c9669410
6 changed files with 80 additions and 28 deletions
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24
include/boost/preprocessor/arithmetic/div.hpp
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@ -16,23 +16,39 @@
#
# include <boost/preprocessor/arithmetic/detail/div_base.hpp>
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/control/iif.hpp>
# include <boost/preprocessor/facilities/identity.hpp>
# include <boost/preprocessor/logical/bitand.hpp>
# include <boost/preprocessor/logical/compl.hpp>
# include <boost/preprocessor/tuple/elem.hpp>
# include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp>
# include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp>
#
# /* BOOST_PP_DIV */
#
# define BOOST_PP_DIV(x, y) \
BOOST_PP_IIF(BOOST_PP_BITAND(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x),BOOST_PP_COMPL(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(y))),BOOST_PP_IDENTITY_N(x,2),BOOST_PP_DIV_CHECK_MAX)(x,y)
#
# define BOOST_PP_DIV_CHECK_MAX(x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_IDENTITY_N(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(x),2),BOOST_PP_DIV_DO)(x,y)
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_DIV(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_DIV_BASE(x, y))
# define BOOST_PP_DIV_DO(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_DIV_BASE(x, y))
# else
# define BOOST_PP_DIV(x, y) BOOST_PP_DIV_I(x, y)
# define BOOST_PP_DIV_DO(x, y) BOOST_PP_DIV_I(x, y)
# define BOOST_PP_DIV_I(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_DIV_BASE(x, y))
# endif
#
# /* BOOST_PP_DIV_D */
#
# define BOOST_PP_DIV_D(d, x, y) \
BOOST_PP_IIF(BOOST_PP_BITAND(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x),BOOST_PP_COMPL(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(y))),BOOST_PP_IDENTITY_N(x,3),BOOST_PP_DIV_CHECK_MAX_D)(d,x,y)
#
# define BOOST_PP_DIV_CHECK_MAX_D(d, x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_IDENTITY_N(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(x),3),BOOST_PP_DIV_DO_D)(d,x,y)
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_DIV_D(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_DIV_BASE_D(d, x, y))
# define BOOST_PP_DIV_DO_D(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_DIV_BASE_D(d, x, y))
# else
# define BOOST_PP_DIV_D(d, x, y) BOOST_PP_DIV_D_I(d, x, y)
# define BOOST_PP_DIV_DO_D(d, x, y) BOOST_PP_DIV_D_I(d, x, y)
# define BOOST_PP_DIV_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_DIV_BASE_D(d, x, y))
# endif
#