feedc0de/boost_preprocessor
1
0
Fork 0
forked from boostorg/preprocessor
Code Pull Requests Activity

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

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

19
include/boost/preprocessor/arithmetic/mul.hpp
View File

@ -17,16 +17,23 @@
# include <boost/preprocessor/arithmetic/add.hpp>
# 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/tuple/elem.hpp>
# include <boost/preprocessor/tuple/rem.hpp>
# include <boost/preprocessor/arithmetic/detail/is_minimum_number.hpp>
# include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp>
#
# /* BOOST_PP_MUL */
#
# define BOOST_PP_MUL(x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_MUL_CHECK_MIN,BOOST_PP_MUL_DO)(x,y)
#
# define BOOST_PP_MUL_CHECK_MIN(x,y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x),0,BOOST_PP_DETAIL_MAXIMUM_NUMBER)
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_MUL(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y)))
# define BOOST_PP_MUL_DO(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y)))
# else
# define BOOST_PP_MUL(x, y) BOOST_PP_MUL_I(x, y)
# define BOOST_PP_MUL_DO(x, y) BOOST_PP_MUL_I(x, y)
# define BOOST_PP_MUL_I(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y)))
# endif
#
@ -43,10 +50,14 @@
#
# /* BOOST_PP_MUL_D */
#
# define BOOST_PP_MUL_D(d, x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_MUL_CHECK_MIN_D,BOOST_PP_MUL_DO_D)(d,x,y)
#
# define BOOST_PP_MUL_CHECK_MIN_D(d,x,y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x),0,BOOST_PP_DETAIL_MAXIMUM_NUMBER)
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_MUL_D(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y)))
# define BOOST_PP_MUL_DO_D(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y)))
# else
# define BOOST_PP_MUL_D(d, x, y) BOOST_PP_MUL_D_I(d, x, y)
# define BOOST_PP_MUL_DO_D(d, x, y) BOOST_PP_MUL_D_I(d, x, y)
# define BOOST_PP_MUL_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y)))
# endif
#