boost/boost/preprocessor/list/for_each_product.hpp

   1 #ifndef BOOST_PREPROCESSOR_LIST_FOR_EACH_PRODUCT_HPP
   2 #define BOOST_PREPROCESSOR_LIST_FOR_EACH_PRODUCT_HPP
   3
   4 /* Copyright (C) 2002
   5  * Housemarque Oy
   6  * http://www.housemarque.com
   7  *
   8  * Permission to copy, use, modify, sell and distribute this software is
   9  * granted provided this copyright notice appears in all copies. This
  10  * software is provided "as is" without express or implied warranty, and
  11  * with no claim as to its suitability for any purpose.
  12  *
  13  * See http://www.boost.org for most recent version.
  14  */
  15
  16 #include <boost/preprocessor/list/adt.hpp>
  17 #include <boost/preprocessor/list/to_tuple.hpp>
  18 #include <boost/preprocessor/tuple/to_list.hpp>
  19 #include <boost/preprocessor/tuple/reverse.hpp>
  20 #include <boost/preprocessor/for.hpp>
  21
  22 /** <p>Repeats <code>MACRO(R,X)</code> for each element <code>X</code> of the
  23 cartesian product of the lists of the <code>SIZE_OF_TUPLE</code>-tuple <code>TUPLE_OF_LISTS</code>.</p>
  24
  25 <p>This macro is useful for generating code to avoid combinatorial
  26 explosion.</p>
  27
  28 <p>For example,</p>
  29
  30 <pre>
  31 #define TEST(R,X) X
  32 BOOST_PP_LIST_FOR_EACH_PRODUCT
  33 ( TEST
  34 , 2
  35 , ( BOOST_PP_TUPLE_TO_LIST(3,(A,B,C))
  36   , BOOST_PP_TUPLE_TO_LIST(2,(1,2))
  37   )
  38 )
  39 </pre>
  40
  41 <p>expands to:</p>
  42
  43 <pre>
  44 (A,1) (A,2) (B,1) (B,2) (C,1) (C,2)
  45 </pre>
  46
  47 <h3>Example</h3>
  48 <ul>
  49   <li><a href="../../example/is_integral.cpp">is_integral.cpp</a></li>
  50   <li><a href="../../example/array_arithmetic.c">array_arithmetic.c</a></li>
  51 </ul>
  52
  53 <h3>Uses</h3>
  54 <ul>
  55   <li>BOOST_PP_FOR() (see for explanation of the R parameter)</li>
  56 </ul>
  57
  58 <h3>Test</h3>
  59 <ul>
  60   <li><a href="../../test/list_test.cpp">list_test.cpp</a></li>
  61 </ul>
  62 */
  63 #define BOOST_PP_LIST_FOR_EACH_PRODUCT(MACRO,SIZE_OF_TUPLE,TUPLE_OF_LISTS) BOOST_PP_LIST_FOR_EACH_PRODUCT_R(0,MACRO,SIZE_OF_TUPLE,TUPLE_OF_LISTS)
  64
  65 /** <p>Can be used inside BOOST_PP_FOR().</p> */
  66 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_R(R,MACRO,SIZE_OF_TUPLE,TUPLE_OF_LISTS) BOOST_PP_LIST_FOR_EACH_PRODUCT_R2(0,MACRO,BOOST_PP_TUPLE_TO_LIST(SIZE_OF_TUPLE,BOOST_PP_TUPLE_REVERSE(SIZE_OF_TUPLE,TUPLE_OF_LISTS)))
  67 #if !defined(BOOST_NO_COMPILER_CONFIG) && defined(__MWERKS__) ||\
  68   !defined(BOOST_NO_COMPILER_CONFIG) && defined(_MSC_VER)
  69 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_R2(R,F,LL) BOOST_PP_FOR##R((BOOST_PP_TUPLE_ELEM(3,0,LL),BOOST_PP_TUPLE_ELEM(3,1,LL),(_,_,0),F),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I0)
  70 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_C(R,P) BOOST_PP_TUPLE_ELEM(3,2,BOOST_PP_TUPLE_ELEM(4,0,P))
  71 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_F(R,P) (BOOST_PP_LIST_REST(BOOST_PP_TUPLE_ELEM(4,0,P)),BOOST_PP_TUPLE_ELEM(4,1,P),BOOST_PP_TUPLE_ELEM(4,2,P),BOOST_PP_TUPLE_ELEM(4,3,P))
  72
  73 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_I(R,P) BOOST_PP_TUPLE_ELEM(4,3,P)(R,BOOST_PP_LIST_TO_TUPLE_R(R,(BOOST_PP_TUPLE_ELEM(3,0,BOOST_PP_TUPLE_ELEM(4,0,P)),BOOST_PP_TUPLE_ELEM(4,2,P),1)))
  74 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,I) BOOST_PP_IF(BOOST_PP_TUPLE_ELEM(3,2,BOOST_PP_TUPLE_ELEM(4,1,P)),BOOST_PP_LIST_FOR_EACH_PRODUCT_I##I##_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_I)
  75 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P) (BOOST_PP_TUPLE_ELEM(3,0,BOOST_PP_TUPLE_ELEM(4,1,P)),BOOST_PP_TUPLE_ELEM(3,1,BOOST_PP_TUPLE_ELEM(4,1,P)),(BOOST_PP_TUPLE_ELEM(3,0,BOOST_PP_TUPLE_ELEM(4,0,P)),BOOST_PP_TUPLE_ELEM(4,2,P),1),BOOST_PP_TUPLE_ELEM(4,3,P))
  76 #else
  77 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_R2(R,F,LL) BOOST_PP_FOR##R((BOOST_PP_TUPLE3_ELEM0 LL,BOOST_PP_TUPLE3_ELEM1 LL,(_,_,0),F),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I0)
  78 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_C(R,P) BOOST_PP_TUPLE3_ELEM2 BOOST_PP_TUPLE4_ELEM0 P
  79 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_F(R,P) (BOOST_PP_LIST_REST(BOOST_PP_TUPLE4_ELEM0 P),BOOST_PP_TUPLE4_ELEM1 P,BOOST_PP_TUPLE4_ELEM2 P,BOOST_PP_TUPLE4_ELEM3 P)
  80
  81 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_I(R,P) BOOST_PP_TUPLE4_ELEM3 P(R,BOOST_PP_LIST_TO_TUPLE_R(R,(BOOST_PP_TUPLE3_ELEM0 BOOST_PP_TUPLE4_ELEM0 P,BOOST_PP_TUPLE4_ELEM2 P,1)))
  82 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,I) BOOST_PP_IF(BOOST_PP_TUPLE3_ELEM2 BOOST_PP_TUPLE4_ELEM1 P,BOOST_PP_LIST_FOR_EACH_PRODUCT_I##I##_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_I)
  83 #  define BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P) (BOOST_PP_TUPLE3_ELEM0 BOOST_PP_TUPLE4_ELEM1 P,BOOST_PP_TUPLE3_ELEM1 BOOST_PP_TUPLE4_ELEM1 P,(BOOST_PP_TUPLE3_ELEM0 BOOST_PP_TUPLE4_ELEM0 P,BOOST_PP_TUPLE4_ELEM2 P,1),BOOST_PP_TUPLE4_ELEM3 P)
  84 #endif
  85 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I0_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I1)
  86 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I0(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,0)(R,P)
  87 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I1_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I2)
  88 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I1(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,1)(R,P)
  89 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I2_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I3)
  90 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I2(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,2)(R,P)
  91 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I3_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I4)
  92 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I3(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,3)(R,P)
  93 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I4_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I5)
  94 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I4(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,4)(R,P)
  95 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I5_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I6)
  96 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I5(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,5)(R,P)
  97 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I6_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I7)
  98 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I6(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,6)(R,P)
  99 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I7_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I8)
 100 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I7(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,7)(R,P)
 101 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I8_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I9)
 102 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I8(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,8)(R,P)
 103 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I9_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I10)
 104 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I9(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,9)(R,P)
 105 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I10_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I11)
 106 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I10(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,10)(R,P)
 107 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I11_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I12)
 108 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I11(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,11)(R,P)
 109 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I12_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I13)
 110 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I12(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,12)(R,P)
 111 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I13_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I14)
 112 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I13(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,13)(R,P)
 113 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I14_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I15)
 114 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I14(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,14)(R,P)
 115 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I15_C(R,P) BOOST_PP_FOR##R(BOOST_PP_LIST_FOR_EACH_PRODUCT_I_H(P),BOOST_PP_LIST_FOR_EACH_PRODUCT_C,BOOST_PP_LIST_FOR_EACH_PRODUCT_F,BOOST_PP_LIST_FOR_EACH_PRODUCT_I16)
 116 #define BOOST_PP_LIST_FOR_EACH_PRODUCT_I15(R,P) BOOST_PP_LIST_FOR_EACH_PRODUCT_I_C(P,15)(R,P)
 117 #endif