src/thirdparty/boost_1_47_0/boost/mpl/aux_/preprocessed/no_ttp/minus.hpp

   1
   2 // Copyright Aleksey Gurtovoy 2000-2004
   3 //
   4 // Distributed under the Boost Software License, Version 1.0.
   5 // (See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8
   9 // Preprocessed version of "boost/mpl/minus.hpp" header
  10 // -- DO NOT modify by hand!
  11
  12 namespace boost { namespace mpl {
  13
  14 template<
  15       typename Tag1
  16     , typename Tag2
  17     >
  18 struct minus_impl
  19     : if_c<
  20           ( BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag1)
  21               > BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag2)
  22             )
  23
  24         , aux::cast2nd_impl< minus_impl< Tag1,Tag1 >,Tag1, Tag2 >
  25         , aux::cast1st_impl< minus_impl< Tag2,Tag2 >,Tag1, Tag2 >
  26         >::type
  27 {
  28 };
  29
  30 /// for Digital Mars C++/compilers with no CTPS/TTP support
  31 template<> struct minus_impl< na,na >
  32 {
  33     template< typename U1, typename U2 > struct apply
  34     {
  35         typedef apply type;
  36         BOOST_STATIC_CONSTANT(int, value  = 0);
  37     };
  38 };
  39
  40 template< typename Tag > struct minus_impl< na,Tag >
  41 {
  42     template< typename U1, typename U2 > struct apply
  43     {
  44         typedef apply type;
  45         BOOST_STATIC_CONSTANT(int, value  = 0);
  46     };
  47 };
  48
  49 template< typename Tag > struct minus_impl< Tag,na >
  50 {
  51     template< typename U1, typename U2 > struct apply
  52     {
  53         typedef apply type;
  54         BOOST_STATIC_CONSTANT(int, value  = 0);
  55     };
  56 };
  57
  58 template< typename T > struct minus_tag
  59 {
  60     typedef typename T::tag type;
  61 };
  62
  63 template<
  64       typename BOOST_MPL_AUX_NA_PARAM(N1)
  65     , typename BOOST_MPL_AUX_NA_PARAM(N2)
  66     , typename N3 = na, typename N4 = na, typename N5 = na
  67     >
  68 struct minus
  69     : minus< minus< minus< minus< N1,N2 >, N3>, N4>, N5>
  70 {
  71     BOOST_MPL_AUX_LAMBDA_SUPPORT(
  72           5
  73         , minus
  74         , ( N1, N2, N3, N4, N5 )
  75         )
  76 };
  77
  78 template<
  79       typename N1, typename N2, typename N3, typename N4
  80     >
  81 struct minus< N1,N2,N3,N4,na >
  82
  83     : minus< minus< minus< N1,N2 >, N3>, N4>
  84 {
  85     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
  86           5
  87         , minus
  88         , ( N1, N2, N3, N4, na )
  89         )
  90 };
  91
  92 template<
  93       typename N1, typename N2, typename N3
  94     >
  95 struct minus< N1,N2,N3,na,na >
  96
  97     : minus< minus< N1,N2 >, N3>
  98 {
  99     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
 100           5
 101         , minus
 102         , ( N1, N2, N3, na, na )
 103         )
 104 };
 105
 106 template<
 107       typename N1, typename N2
 108     >
 109 struct minus< N1,N2,na,na,na >
 110     : minus_impl<
 111           typename minus_tag<N1>::type
 112         , typename minus_tag<N2>::type
 113         >::template apply< N1,N2 >::type
 114 {
 115     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
 116           5
 117         , minus
 118         , ( N1, N2, na, na, na )
 119         )
 120
 121 };
 122
 123 BOOST_MPL_AUX_NA_SPEC2(2, 5, minus)
 124
 125 }}
 126
 127 namespace boost { namespace mpl {
 128
 129 namespace aux {
 130 template< typename T, T n1, T n2 >
 131 struct minus_wknd
 132 {
 133     BOOST_STATIC_CONSTANT(T, value  = (n1 - n2));
 134     typedef integral_c< T,value > type;
 135 };
 136
 137 }
 138
 139 template<>
 140 struct minus_impl< integral_c_tag,integral_c_tag >
 141 {
 142     template< typename N1, typename N2 > struct apply
 143         : aux::minus_wknd<
 144               typename aux::largest_int<
 145                   typename N1::value_type
 146                 , typename N2::value_type
 147                 >::type
 148             , N1::value
 149             , N2::value
 150             >::type
 151
 152     {
 153     };
 154 };
 155
 156 }}