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// file : odb/details/meta/polymorphic-p.hxx
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_DETAILS_META_POLYMORPHIC_HXX
#define ODB_DETAILS_META_POLYMORPHIC_HXX
#include <odb/pre.hxx>
#include <odb/details/config.hxx> // ODB_NOTHROW_NOEXCEPT
#include <odb/details/meta/class-p.hxx>
#include <odb/details/meta/remove-const-volatile.hxx>
namespace odb
{
namespace details
{
namespace meta
{
template <typename CVX>
struct polymorphic_p
{
typedef typename remove_const_volatile<CVX>::result X;
template <typename Y, bool C>
struct impl
{
static const bool result = false;
};
template <typename Y>
struct impl<Y, true>
{
struct t1: Y
{
t1 ();
};
struct t2: Y
{
t2 ();
virtual
~t2 () ODB_NOTHROW_NOEXCEPT;
};
static const bool result = sizeof (t1) == sizeof (t2);
};
static const bool result = impl<X, class_p<X>::result>::result;
};
}
}
}
#include <odb/post.hxx>
#endif // ODB_DETAILS_META_POLYMORPHIC_HXX
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