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-rw-r--r--boost/type_traits/is_scalar.hpp34
1 files changed, 3 insertions, 31 deletions
diff --git a/boost/type_traits/is_scalar.hpp b/boost/type_traits/is_scalar.hpp
index 4af3def14c..3031440596 100644
--- a/boost/type_traits/is_scalar.hpp
+++ b/boost/type_traits/is_scalar.hpp
@@ -13,43 +13,15 @@
#include <boost/type_traits/is_enum.hpp>
#include <boost/type_traits/is_pointer.hpp>
#include <boost/type_traits/is_member_pointer.hpp>
-#include <boost/type_traits/detail/ice_or.hpp>
#include <boost/config.hpp>
-// should be the last #include
-#include <boost/type_traits/detail/bool_trait_def.hpp>
-
namespace boost {
-namespace detail {
-
template <typename T>
-struct is_scalar_impl
-{
- BOOST_STATIC_CONSTANT(bool, value =
- (::boost::type_traits::ice_or<
- ::boost::is_arithmetic<T>::value,
- ::boost::is_enum<T>::value,
- ::boost::is_pointer<T>::value,
- ::boost::is_member_pointer<T>::value
- >::value));
-};
-
-// these specializations are only really needed for compilers
-// without partial specialization support:
-template <> struct is_scalar_impl<void>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
-#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
-template <> struct is_scalar_impl<void const>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
-template <> struct is_scalar_impl<void volatile>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
-template <> struct is_scalar_impl<void const volatile>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
-#endif
-
-} // namespace detail
-
-BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_scalar,T,::boost::detail::is_scalar_impl<T>::value)
+struct is_scalar
+ : public integral_constant<bool, ::boost::is_arithmetic<T>::value || ::boost::is_enum<T>::value || ::boost::is_pointer<T>::value || ::boost::is_member_pointer<T>::value>
+{};
} // namespace boost
-#include <boost/type_traits/detail/bool_trait_undef.hpp>
-
#endif // BOOST_TT_IS_SCALAR_HPP_INCLUDED