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// file : odb/meta/polymorphic-p.hxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_META_POLYMORPHIC_HXX
#define ODB_META_POLYMORPHIC_HXX
#include <odb/meta/class-p.hxx>
#include <odb/meta/remove-cv.hxx>
namespace odb
{
namespace meta
{
template <typename CVX>
struct polymorphic_p
{
typedef typename remove_cv<CVX>::r X;
template <typename Y, bool C>
struct impl
{
static const bool r = false;
};
template <typename Y>
struct impl<Y, true>
{
struct t1: Y
{
t1 ();
};
struct t2: Y
{
t2 ();
virtual
~t2 () throw ();
};
static const bool r = sizeof (t1) == sizeof (t2);
};
static const bool r = impl<X, class_p<X>::r>::r;
};
}
}
#endif // ODB_META_POLYMORPHIC_HXX
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