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2 | // Copyright Aleksey Gurtovoy 2000-2004
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3 | // Copyright Jaap Suter 2003
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4 | //
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5 | // Distributed under the Boost Software License, Version 1.0.
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6 | // (See accompanying file LICENSE_1_0.txt or copy at
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7 | // http://www.boost.org/LICENSE_1_0.txt)
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8 | //
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9 |
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10 | // Preprocessed version of "boost/mpl/shift_right.hpp" header
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11 | // -- DO NOT modify by hand!
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12 |
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13 | namespace boost { namespace mpl {
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14 |
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15 | template<
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16 | typename Tag1
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17 | , typename Tag2
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18 |
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19 | , BOOST_MPL_AUX_NTTP_DECL(int, tag1_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag1)::value
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20 | , BOOST_MPL_AUX_NTTP_DECL(int, tag2_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag2)::value
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21 | >
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22 | struct shift_right_impl
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23 | : if_c<
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24 | ( tag1_ > tag2_ )
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25 | , aux::cast2nd_impl< shift_right_impl< Tag1,Tag1 >,Tag1, Tag2 >
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26 | , aux::cast1st_impl< shift_right_impl< Tag2,Tag2 >,Tag1, Tag2 >
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27 | >::type
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28 | {
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29 | };
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30 |
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31 | /// for Digital Mars C++/compilers with no CTPS/TTP support
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32 | template<> struct shift_right_impl< na,na >
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33 | {
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34 | template< typename U1, typename U2 > struct apply
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35 | {
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36 | typedef apply type;
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37 | BOOST_STATIC_CONSTANT(int, value = 0);
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38 | };
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39 | };
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40 |
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41 | template<> struct shift_right_impl< na,integral_c_tag >
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42 | {
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43 | template< typename U1, typename U2 > struct apply
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44 | {
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45 | typedef apply type;
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46 | BOOST_STATIC_CONSTANT(int, value = 0);
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47 | };
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48 | };
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49 |
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50 | template<> struct shift_right_impl< integral_c_tag,na >
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51 | {
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52 | template< typename U1, typename U2 > struct apply
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53 | {
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54 | typedef apply type;
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55 | BOOST_STATIC_CONSTANT(int, value = 0);
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56 | };
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57 | };
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58 |
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59 | template< typename T > struct shift_right_tag
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60 | {
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61 | typedef typename T::tag type;
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62 | };
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63 |
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64 | template<
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65 | typename BOOST_MPL_AUX_NA_PARAM(N1)
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66 | , typename BOOST_MPL_AUX_NA_PARAM(N2)
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67 | >
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68 | struct shift_right
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69 | : aux::msvc_eti_base< typename apply_wrap2<
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70 | shift_right_impl<
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71 | typename shift_right_tag<N1>::type
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72 | , typename shift_right_tag<N2>::type
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73 | >
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74 | , N1
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75 | , N2
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76 | >::type >::type
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77 |
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78 | {
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79 | BOOST_MPL_AUX_LAMBDA_SUPPORT(2, shift_right, (N1, N2))
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80 |
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81 | };
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82 |
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83 | BOOST_MPL_AUX_NA_SPEC2(2, 2, shift_right)
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84 |
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85 | }}
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86 |
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87 | namespace boost { namespace mpl {
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88 |
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89 | namespace aux {
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90 | template< typename T, typename Shift, T n, Shift s >
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91 | struct shift_right_wknd
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92 | {
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93 | BOOST_STATIC_CONSTANT(T, value = (n >> s));
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94 | typedef integral_c< T,value > type;
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95 | };
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96 |
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97 | }
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98 |
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99 | template<>
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100 | struct shift_right_impl< integral_c_tag,integral_c_tag >
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101 | {
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102 | template< typename N, typename S > struct apply
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103 | : aux::shift_right_wknd<
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104 | typename N::value_type
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105 | , typename S::value_type
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106 | , N::value
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107 | , S::value
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108 | >::type
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109 |
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110 | {
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111 | };
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112 | };
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113 |
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114 | }}
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