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Updated multiplication and subtraction to check for maximum/minimum numbers.

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This commit is contained in:
Edward Diener
2020-06-07 15:49:53 -04:00
parent c07bb185c1
commit d41d1dda97
5 changed files with 67 additions and 51 deletions
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15
include/boost/preprocessor/arithmetic/sub.hpp
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@ -16,15 +16,20 @@
#
# include <boost/preprocessor/arithmetic/dec.hpp>
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/control/iif.hpp>
# include <boost/preprocessor/control/while.hpp>
# include <boost/preprocessor/facilities/identity.hpp>
# include <boost/preprocessor/tuple/elem.hpp>
# include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp>
#
# /* BOOST_PP_SUB */
#
# define BOOST_PP_SUB(x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_IDENTITY_N(0,2),BOOST_PP_SUB_DO)(x,y)
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_SUB(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_SUB_P, BOOST_PP_SUB_O, (x, y)))
# define BOOST_PP_SUB_DO(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_SUB_P, BOOST_PP_SUB_O, (x, y)))
# else
# define BOOST_PP_SUB(x, y) BOOST_PP_SUB_I(x, y)
# define BOOST_PP_SUB_DO(x, y) BOOST_PP_SUB_I(x, y)
# define BOOST_PP_SUB_I(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_SUB_P, BOOST_PP_SUB_O, (x, y)))
# endif
#
@ -40,10 +45,12 @@
#
# /* BOOST_PP_SUB_D */
#
# define BOOST_PP_SUB_D(d, x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_IDENTITY_N(0,3),BOOST_PP_SUB_D_DO)(d,x,y)
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_SUB_D(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_SUB_P, BOOST_PP_SUB_O, (x, y)))
# define BOOST_PP_SUB_D_DO(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_SUB_P, BOOST_PP_SUB_O, (x, y)))
# else
# define BOOST_PP_SUB_D(d, x, y) BOOST_PP_SUB_D_I(d, x, y)
# define BOOST_PP_SUB_D_DO(d, x, y) BOOST_PP_SUB_D_I(d, x, y)
# define BOOST_PP_SUB_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_SUB_P, BOOST_PP_SUB_O, (x, y)))
# endif
#