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- namespace boost { namespace mpl {
- template<
- typename Tag1
- , typename Tag2
- , BOOST_MPL_AUX_NTTP_DECL(int, tag1_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag1)::value
- , BOOST_MPL_AUX_NTTP_DECL(int, tag2_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag2)::value
- >
- struct equal_to_impl
- : if_c<
- ( tag1_ > tag2_ )
- , aux::cast2nd_impl< equal_to_impl< Tag1,Tag1 >,Tag1, Tag2 >
- , aux::cast1st_impl< equal_to_impl< Tag2,Tag2 >,Tag1, Tag2 >
- >::type
- {
- };
- template<> struct equal_to_impl< na,na >
- {
- template< typename U1, typename U2 > struct apply
- {
- typedef apply type;
- BOOST_STATIC_CONSTANT(int, value = 0);
- };
- };
- template<> struct equal_to_impl< na,integral_c_tag >
- {
- template< typename U1, typename U2 > struct apply
- {
- typedef apply type;
- BOOST_STATIC_CONSTANT(int, value = 0);
- };
- };
- template<> struct equal_to_impl< integral_c_tag,na >
- {
- template< typename U1, typename U2 > struct apply
- {
- typedef apply type;
- BOOST_STATIC_CONSTANT(int, value = 0);
- };
- };
- template< typename T > struct equal_to_tag
- : tag< T,na >
- {
- };
- template<
- typename BOOST_MPL_AUX_NA_PARAM(N1)
- , typename BOOST_MPL_AUX_NA_PARAM(N2)
- >
- struct equal_to
- : aux::msvc_eti_base< typename apply_wrap2<
- equal_to_impl<
- typename equal_to_tag<N1>::type
- , typename equal_to_tag<N2>::type
- >
- , N1
- , N2
- >::type >::type
- {
- BOOST_MPL_AUX_LAMBDA_SUPPORT(2, equal_to, (N1, N2))
- };
- BOOST_MPL_AUX_NA_SPEC2(2, 2, equal_to)
- }}
- namespace boost { namespace mpl {
- template<>
- struct equal_to_impl< integral_c_tag,integral_c_tag >
- {
- template< typename N1, typename N2 > struct apply
- {
- BOOST_STATIC_CONSTANT(bool, value =
- ( BOOST_MPL_AUX_VALUE_WKND(N1)::value ==
- BOOST_MPL_AUX_VALUE_WKND(N2)::value )
- );
- typedef bool_<value> type;
- };
- };
- }}
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