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WOrkaround for https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1242266&group_id=7586

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[SVN r30218]
This commit is contained in:
Dave Abrahams
2005-07-22 16:14:42 +00:00
parent b6b9a01a0b
commit a603a6a21d
1 changed files with 9 additions and 3 deletions
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12
include/boost/type_traits/is_enum.hpp
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@ -105,6 +105,10 @@ template <typename T> struct is_enum_impl
#if defined(__GNUC__)
#ifdef BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION
// We MUST check for is_class_or_union on conforming compilers in
// order to correctly deduce that noncopyable types are not enums
// (dwa 2002/04/15)...
BOOST_STATIC_CONSTANT(bool, selector =
(::boost::type_traits::ice_or<
::boost::is_arithmetic<T>::value
@ -114,6 +118,8 @@ template <typename T> struct is_enum_impl
, is_array<T>::value
>::value));
#else
// ...however, not checking is_class_or_union on non-conforming
// compilers prevents a dependency recursion.
BOOST_STATIC_CONSTANT(bool, selector =
(::boost::type_traits::ice_or<
::boost::is_arithmetic<T>::value
@ -123,16 +129,16 @@ template <typename T> struct is_enum_impl
>::value));
#endif // BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION
#else
#else // !defined(__GNUC__):
BOOST_STATIC_CONSTANT(bool, selector =
(::boost::type_traits::ice_or<
::boost::is_arithmetic<T>::value
, ::boost::is_reference<T>::value
, is_class_or_union<T>::value
, is_array<T>::value
// However, not doing this on non-conforming compilers prevents
// a dependency recursion.
>::value));
#endif
#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)