[44] | 1 | |
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| 2 | // Copyright Aleksey Gurtovoy 2000-2004 |
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| 3 | // |
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| 4 | // Distributed under the Boost Software License, Version 1.0. |
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| 5 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | // |
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| 8 | |
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| 9 | // Preprocessed version of "boost/mpl/minus.hpp" header |
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| 10 | // -- DO NOT modify by hand! |
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| 11 | |
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| 12 | namespace boost { namespace mpl { |
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| 13 | |
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| 14 | template< |
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| 15 | typename Tag1 |
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| 16 | , typename Tag2 |
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| 17 | |
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| 18 | , BOOST_MPL_AUX_NTTP_DECL(int, tag1_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag1)::value |
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| 19 | , BOOST_MPL_AUX_NTTP_DECL(int, tag2_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag2)::value |
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| 20 | > |
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| 21 | struct minus_impl |
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| 22 | : if_c< |
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| 23 | ( tag1_ > tag2_ ) |
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| 24 | , aux::cast2nd_impl< minus_impl< Tag1,Tag1 >,Tag1, Tag2 > |
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| 25 | , aux::cast1st_impl< minus_impl< Tag2,Tag2 >,Tag1, Tag2 > |
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| 26 | >::type |
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| 27 | { |
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| 28 | }; |
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| 29 | |
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| 30 | /// for Digital Mars C++/compilers with no CTPS/TTP support |
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| 31 | template<> struct minus_impl< na,na > |
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| 32 | { |
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| 33 | template< typename U1, typename U2 > struct apply |
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| 34 | { |
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| 35 | typedef apply type; |
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| 36 | BOOST_STATIC_CONSTANT(int, value = 0); |
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| 37 | }; |
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| 38 | }; |
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| 39 | |
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| 40 | template<> struct minus_impl< na,integral_c_tag > |
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| 41 | { |
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| 42 | template< typename U1, typename U2 > struct apply |
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| 43 | { |
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| 44 | typedef apply type; |
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| 45 | BOOST_STATIC_CONSTANT(int, value = 0); |
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| 46 | }; |
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| 47 | }; |
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| 48 | |
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| 49 | template<> struct minus_impl< integral_c_tag,na > |
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| 50 | { |
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| 51 | template< typename U1, typename U2 > struct apply |
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| 52 | { |
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| 53 | typedef apply type; |
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| 54 | BOOST_STATIC_CONSTANT(int, value = 0); |
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| 55 | }; |
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| 56 | }; |
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| 57 | |
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| 58 | template< typename T > struct minus_tag |
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| 59 | : tag< T,na > |
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| 60 | { |
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| 61 | }; |
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| 62 | |
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| 63 | /// forward declaration |
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| 64 | |
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| 65 | template< |
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| 66 | typename BOOST_MPL_AUX_NA_PARAM(N1) |
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| 67 | , typename BOOST_MPL_AUX_NA_PARAM(N2) |
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| 68 | > |
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| 69 | struct minus2; |
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| 70 | |
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| 71 | template< |
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| 72 | typename BOOST_MPL_AUX_NA_PARAM(N1) |
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| 73 | , typename BOOST_MPL_AUX_NA_PARAM(N2) |
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| 74 | , typename N3 = na, typename N4 = na, typename N5 = na |
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| 75 | > |
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| 76 | struct minus |
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| 77 | |
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| 78 | : aux::msvc_eti_base< typename if_< |
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| 79 | |
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| 80 | is_na<N3> |
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| 81 | , minus2< N1,N2 > |
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| 82 | , minus< |
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| 83 | minus2< N1,N2 > |
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| 84 | , N3, N4, N5 |
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| 85 | > |
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| 86 | >::type |
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| 87 | |
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| 88 | > |
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| 89 | |
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| 90 | { |
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| 91 | BOOST_MPL_AUX_LAMBDA_SUPPORT( |
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| 92 | 5 |
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| 93 | , minus |
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| 94 | , ( N1, N2, N3, N4, N5 ) |
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| 95 | ) |
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| 96 | }; |
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| 97 | |
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| 98 | template< |
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| 99 | typename N1 |
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| 100 | , typename N2 |
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| 101 | > |
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| 102 | struct minus2 |
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| 103 | : aux::msvc_eti_base< typename apply_wrap2< |
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| 104 | minus_impl< |
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| 105 | typename minus_tag<N1>::type |
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| 106 | , typename minus_tag<N2>::type |
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| 107 | > |
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| 108 | , N1 |
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| 109 | , N2 |
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| 110 | >::type >::type |
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| 111 | |
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| 112 | { |
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| 113 | BOOST_MPL_AUX_LAMBDA_SUPPORT(2, minus2, (N1, N2)) |
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| 114 | |
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| 115 | }; |
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| 116 | |
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| 117 | BOOST_MPL_AUX_NA_SPEC2(2, 5, minus) |
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| 118 | |
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| 119 | }} |
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| 120 | |
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| 121 | namespace boost { namespace mpl { |
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| 122 | |
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| 123 | namespace aux { |
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| 124 | template< typename T, T n1, T n2 > |
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| 125 | struct minus_wknd |
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| 126 | { |
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| 127 | BOOST_STATIC_CONSTANT(T, value = (n1 - n2)); |
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| 128 | typedef integral_c< T,value > type; |
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| 129 | }; |
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| 130 | |
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| 131 | } |
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| 132 | |
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| 133 | template<> |
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| 134 | struct minus_impl< integral_c_tag,integral_c_tag > |
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| 135 | { |
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| 136 | template< typename N1, typename N2 > struct apply |
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| 137 | : aux::minus_wknd< |
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| 138 | typename aux::largest_int< |
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| 139 | typename N1::value_type |
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| 140 | , typename N2::value_type |
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| 141 | >::type |
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| 142 | , N1::value |
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| 143 | , N2::value |
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| 144 | >::type |
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| 145 | |
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| 146 | { |
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| 147 | }; |
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| 148 | }; |
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| 149 | |
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| 150 | }} |
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