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 }; 72 73 template< 74 typename N1, typename N2, typename N3, typename N4 75 > 76 struct minus< N1,N2,N3,N4,na > 77 78 : minus< minus< minus< N1,N2 >, N3>, N4> 79 { 80 BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC( 81 5 82 , minus 83 , ( N1, N2, N3, N4, na ) 84 ) 85 }; 86 87 template< 88 typename N1, typename N2, typename N3 89 > 90 struct minus< N1,N2,N3,na,na > 91 92 : minus< minus< N1,N2 >, N3> 93 { 94 BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC( 95 5 96 , minus 97 , ( N1, N2, N3, na, na ) 98 ) 99 }; 100 101 template< 102 typename N1, typename N2 103 > 104 struct minus< N1,N2,na,na,na > 105 : minus_impl< 106 typename minus_tag<N1>::type 107 , typename minus_tag<N2>::type 108 >::template apply< N1,N2 >::type 109 { 110 BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC( 111 5 112 , minus 113 , ( N1, N2, na, na, na ) 114 ) 115 116 }; 117 118 BOOST_MPL_AUX_NA_SPEC2(2, 5, minus) 119 120 }} 121 122 namespace boost { namespace mpl { 123 template<> 124 struct minus_impl< integral_c_tag,integral_c_tag > 125 { 126 template< typename N1, typename N2 > struct apply 127 128 : integral_c< 129 typename aux::largest_int< 130 typename N1::value_type 131 , typename N2::value_type 132 >::type 133 , ( BOOST_MPL_AUX_VALUE_WKND(N1)::value 134 - BOOST_MPL_AUX_VALUE_WKND(N2)::value 135 ) 136 > 137 { 138 }; 139 }; 140 141 }} 142