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O(N*N) space and O(1) time BOOST_PP_TUPLE_ELEM()

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[SVN r14149]
This commit is contained in:
Vesa Karvonen
2002-06-16 08:06:36 +00:00
parent 54d0da5221
commit 8854c2c573
19 changed files with 81 additions and 276 deletions
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10
include/boost/preprocessor/arithmetic/mul.hpp
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@ -32,11 +32,7 @@ single token).</p>
/** <p>Can be used inside BOOST_PP_WHILE() (see for an explanation of the D parameter).</p> */
#define BOOST_PP_MUL_D(D,X,Y) BOOST_PP_TUPLE_ELEM(3,0,BOOST_PP_WHILE##D(BOOST_PP_MUL_C,BOOST_PP_MUL_F,(0,X,Y)))
#if !defined(BOOST_NO_COMPILER_CONFIG) && defined(__MWERKS__)
# define BOOST_PP_MUL_C(D,RXC) BOOST_PP_TUPLE_ELEM(3,2,RXC)
# define BOOST_PP_MUL_F(D,RXC) (BOOST_PP_ADD_D(D,BOOST_PP_TUPLE_ELEM(3,0,RXC),BOOST_PP_TUPLE_ELEM(3,1,RXC)),BOOST_PP_TUPLE_ELEM(3,1,RXC),BOOST_PP_DEC(BOOST_PP_TUPLE_ELEM(3,2,RXC)))
#else
# define BOOST_PP_MUL_C(D,RXC) BOOST_PP_TUPLE3_ELEM2 RXC
# define BOOST_PP_MUL_F(D,RXC) (BOOST_PP_ADD_D(D,BOOST_PP_TUPLE3_ELEM0 RXC,BOOST_PP_TUPLE3_ELEM1 RXC),BOOST_PP_TUPLE3_ELEM1 RXC,BOOST_PP_DEC(BOOST_PP_TUPLE3_ELEM2 RXC))
#endif
#define BOOST_PP_MUL_C(D,RXC) BOOST_PP_TUPLE_ELEM(3,2,RXC)
#define BOOST_PP_MUL_F(D,RXC) (BOOST_PP_ADD_D(D,BOOST_PP_TUPLE_ELEM(3,0,RXC),BOOST_PP_TUPLE_ELEM(3,1,RXC)),BOOST_PP_TUPLE_ELEM(3,1,RXC),BOOST_PP_DEC(BOOST_PP_TUPLE_ELEM(3,2,RXC)))
#endif