preprocessed/plain/plus.hpp

0001
0002 // Copyright Aleksey Gurtovoy 2000-2004
0003 //
0004 // Distributed under the Boost Software License, Version 1.0.
0005 // (See accompanying file LICENSE_1_0.txt or copy at
0006 // http://www.boost.org/LICENSE_1_0.txt)
0007 //
0008
0009 // Preprocessed version of "boost/mpl/plus.hpp" header
0010 // -- DO NOT modify by hand!
0011
0012 namespace boost { namespace mpl {
0013
0014 template<
0015       typename Tag1
0016     , typename Tag2
0017     >
0018 struct plus_impl
0019     : if_c<
0020           ( BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag1)
0021               > BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag2)
0022             )
0023
0024         , aux::cast2nd_impl< plus_impl< Tag1,Tag1 >,Tag1, Tag2 >
0025         , aux::cast1st_impl< plus_impl< Tag2,Tag2 >,Tag1, Tag2 >
0026         >::type
0027 {
0028 };
0029
0030 /// for Digital Mars C++/compilers with no CTPS/TTP support
0031 template<> struct plus_impl< na,na >
0032 {
0033     template< typename U1, typename U2 > struct apply
0034     {
0035         typedef apply type;
0036         BOOST_STATIC_CONSTANT(int, value  = 0);
0037     };
0038 };
0039
0040 template< typename Tag > struct plus_impl< na,Tag >
0041 {
0042     template< typename U1, typename U2 > struct apply
0043     {
0044         typedef apply type;
0045         BOOST_STATIC_CONSTANT(int, value  = 0);
0046     };
0047 };
0048
0049 template< typename Tag > struct plus_impl< Tag,na >
0050 {
0051     template< typename U1, typename U2 > struct apply
0052     {
0053         typedef apply type;
0054         BOOST_STATIC_CONSTANT(int, value  = 0);
0055     };
0056 };
0057
0058 template< typename T > struct plus_tag
0059 {
0060     typedef typename T::tag type;
0061 };
0062
0063 template<
0064       typename BOOST_MPL_AUX_NA_PARAM(N1)
0065     , typename BOOST_MPL_AUX_NA_PARAM(N2)
0066     , typename N3 = na, typename N4 = na, typename N5 = na
0067     >
0068 struct plus
0069     : plus< plus< plus< plus< N1,N2 >, N3>, N4>, N5>
0070 {
0071 };
0072
0073 template<
0074       typename N1, typename N2, typename N3, typename N4
0075     >
0076 struct plus< N1,N2,N3,N4,na >
0077
0078     : plus< plus< plus< N1,N2 >, N3>, N4>
0079 {
0080     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
0081           5
0082         , plus
0083         , ( N1, N2, N3, N4, na )
0084         )
0085 };
0086
0087 template<
0088       typename N1, typename N2, typename N3
0089     >
0090 struct plus< N1,N2,N3,na,na >
0091
0092     : plus< plus< N1,N2 >, N3>
0093 {
0094     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
0095           5
0096         , plus
0097         , ( N1, N2, N3, na, na )
0098         )
0099 };
0100
0101 template<
0102       typename N1, typename N2
0103     >
0104 struct plus< N1,N2,na,na,na >
0105     : plus_impl<
0106           typename plus_tag<N1>::type
0107         , typename plus_tag<N2>::type
0108         >::template apply< N1,N2 >::type
0109 {
0110     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
0111           5
0112         , plus
0113         , ( N1, N2, na, na, na )
0114         )
0115
0116 };
0117
0118 BOOST_MPL_AUX_NA_SPEC2(2, 5, plus)
0119
0120 }}
0121
0122 namespace boost { namespace mpl {
0123 template<>
0124 struct plus_impl< integral_c_tag,integral_c_tag >
0125 {
0126     template< typename N1, typename N2 > struct apply
0127
0128         : integral_c<
0129               typename aux::largest_int<
0130                   typename N1::value_type
0131                 , typename N2::value_type
0132                 >::type
0133             , ( BOOST_MPL_AUX_VALUE_WKND(N1)::value
0134                   + BOOST_MPL_AUX_VALUE_WKND(N2)::value
0135                 )
0136             >
0137     {
0138     };
0139 };
0140
0141 }}