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-rw-r--r--odb/meta/polymorphic-p.hxx51
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diff --git a/odb/meta/polymorphic-p.hxx b/odb/meta/polymorphic-p.hxx
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--- a/odb/meta/polymorphic-p.hxx
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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