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| 1 |
| 2 // Copyright Aleksey Gurtovoy 2000-2004 |
| 3 // Copyright Jaap Suter 2003 |
| 4 // |
| 5 // Distributed under the Boost Software License, Version 1.0. |
| 6 // (See accompanying file LICENSE_1_0.txt or copy at |
| 7 // http://www.boost.org/LICENSE_1_0.txt) |
| 8 // |
| 9 |
| 10 // Preprocessed version of "boost/mpl/shift_left.hpp" header |
| 11 // -- DO NOT modify by hand! |
| 12 |
| 13 namespace boost { namespace mpl { |
| 14 |
| 15 template< |
| 16 typename Tag1 |
| 17 , typename Tag2 |
| 18 > |
| 19 struct shift_left_impl |
| 20 : if_c< |
| 21 ( BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag1) |
| 22 > BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag2) |
| 23 ) |
| 24 |
| 25 , aux::cast2nd_impl< shift_left_impl< Tag1,Tag1 >,Tag1, Tag2 > |
| 26 , aux::cast1st_impl< shift_left_impl< Tag2,Tag2 >,Tag1, Tag2 > |
| 27 >::type |
| 28 { |
| 29 }; |
| 30 |
| 31 /// for Digital Mars C++/compilers with no CTPS/TTP support |
| 32 template<> struct shift_left_impl< na,na > |
| 33 { |
| 34 template< typename U1, typename U2 > struct apply |
| 35 { |
| 36 typedef apply type; |
| 37 BOOST_STATIC_CONSTANT(int, value = 0); |
| 38 }; |
| 39 }; |
| 40 |
| 41 template< typename Tag > struct shift_left_impl< na,Tag > |
| 42 { |
| 43 template< typename U1, typename U2 > struct apply |
| 44 { |
| 45 typedef apply type; |
| 46 BOOST_STATIC_CONSTANT(int, value = 0); |
| 47 }; |
| 48 }; |
| 49 |
| 50 template< typename Tag > struct shift_left_impl< Tag,na > |
| 51 { |
| 52 template< typename U1, typename U2 > struct apply |
| 53 { |
| 54 typedef apply type; |
| 55 BOOST_STATIC_CONSTANT(int, value = 0); |
| 56 }; |
| 57 }; |
| 58 |
| 59 template< typename T > struct shift_left_tag |
| 60 { |
| 61 typedef typename T::tag type; |
| 62 }; |
| 63 |
| 64 template< |
| 65 typename BOOST_MPL_AUX_NA_PARAM(N1) |
| 66 , typename BOOST_MPL_AUX_NA_PARAM(N2) |
| 67 > |
| 68 struct shift_left |
| 69 |
| 70 : shift_left_impl< |
| 71 typename shift_left_tag<N1>::type |
| 72 , typename shift_left_tag<N2>::type |
| 73 >::template apply< N1,N2 >::type |
| 74 { |
| 75 }; |
| 76 |
| 77 BOOST_MPL_AUX_NA_SPEC2(2, 2, shift_left) |
| 78 |
| 79 }} |
| 80 |
| 81 namespace boost { namespace mpl { |
| 82 template<> |
| 83 struct shift_left_impl< integral_c_tag,integral_c_tag > |
| 84 { |
| 85 template< typename N, typename S > struct apply |
| 86 |
| 87 : integral_c< |
| 88 typename N::value_type |
| 89 , ( BOOST_MPL_AUX_VALUE_WKND(N)::value |
| 90 << BOOST_MPL_AUX_VALUE_WKND(S)::value |
| 91 ) |
| 92 > |
| 93 { |
| 94 }; |
| 95 }; |
| 96 |
| 97 }} |
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