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Better support for BOOST_TYPEOF_NESTED_TYPEDEF for Borland

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[SVN r39707]
This commit is contained in:
Peder Holt 2007-10-05 14:32:04 +00:00
parent 86d4e1c4db
commit 3e4face079
1 changed files with 33 additions and 1 deletions
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34
include/boost/typeof/typeof_impl.hpp
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@ -106,6 +106,38 @@ namespace boost { namespace type_of {
typedef _typeof_encode_fraction<self_t::iteration> fraction_type;
#endif
#ifdef __BORLANDC__
namespace boost { namespace type_of {
template<typename Pos,typename Iter>
struct generic_typeof_fraction_iter {
typedef generic_typeof_fraction_iter<Pos,Iter> self_t;
static const int pos=(Pos::value);
static const int iteration=(pos/5);
static const int where=pos%5;
typedef typename Iter::template _apply_next<self_t::iteration>::type fraction_type;
typedef generic_typeof_fraction_iter<typename Pos::next,Iter> next;
typedef typename v_iter<fraction_type,mpl::int_<self_t::where> >::type type;
};
}}
#define BOOST_TYPEOF_NESTED_TYPEDEF_IMPL(expr) \
template<int _Typeof_Iteration>\
struct _typeof_encode_fraction {\
typedef _typeof_encode_fraction<_Typeof_Iteration> self_t;\
BOOST_STATIC_CONSTANT(int,_typeof_encode_offset = (_Typeof_Iteration*BOOST_TYPEOF_LIMIT_SIZE));\
typedef boost::type_of::offset_vector<BOOST_TYPEOF_VECTOR(0)<>,boost::mpl::size_t<self_t::_typeof_encode_offset> > _typeof_start_vector;\
BOOST_PP_REPEAT(BOOST_TYPEOF_LIMIT_SIZE,BOOST_TYPEOF_NESTED_TYPEITEM,expr)\
template<int Next>\
struct _apply_next {\
typedef _typeof_encode_fraction<Next> type;\
};\
};\
template<typename Pos>\
struct _typeof_fraction_iter {\
typedef boost::type_of::generic_typeof_fraction_iter<Pos,_typeof_encode_fraction<0> > self_t;\
typedef typename self_t::next next;\
typedef typename self_t::type type;\
};
#else
#define BOOST_TYPEOF_NESTED_TYPEDEF_IMPL(expr) \
template<int _Typeof_Iteration>\
struct _typeof_encode_fraction {\
@ -124,7 +156,7 @@ namespace boost { namespace type_of {
typedef typename boost::type_of::v_iter<fraction_type,boost::mpl::int_<self_t::where> >::type type;\
typedef _typeof_fraction_iter<typename Pos::next> next;\
};
#endif
#ifdef __MWERKS__
# define BOOST_TYPEOF_NESTED_TYPEDEF(name,expr) \