#define BOOST_SERIALIZATION_VERSION_HPP
// MS compatible compilers support #pragma once
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+#if defined(_MSC_VER)
# pragma once
#endif
{
template<class U>
struct traits_class_version {
- typedef BOOST_DEDUCED_TYPENAME U::version type;
+ typedef typename U::version type;
};
typedef mpl::integral_c_tag tag;
// note: at least one compiler complained w/o the full qualification
// on basic traits below
typedef
- BOOST_DEDUCED_TYPENAME mpl::eval_if<
+ typename mpl::eval_if<
is_base_and_derived<boost::serialization::basic_traits,T>,
traits_class_version< T >,
mpl::int_<0>