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author | Boris Kolpackov <boris@codesynthesis.com> | 2009-09-06 12:52:53 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2009-09-06 12:52:53 +0200 |
commit | cb9ea47e7825b5073d4d645afb94f6326cb7cf4d (patch) | |
tree | 201c215b08df918924153a60520046c294438a6b /cutl/meta/polymorphic-p.hxx |
Start the libcutl repository
Diffstat (limited to 'cutl/meta/polymorphic-p.hxx')
-rw-r--r-- | cutl/meta/polymorphic-p.hxx | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/cutl/meta/polymorphic-p.hxx b/cutl/meta/polymorphic-p.hxx new file mode 100644 index 0000000..35723e3 --- /dev/null +++ b/cutl/meta/polymorphic-p.hxx @@ -0,0 +1,51 @@ +// file : cutl/meta/polymorphic-p.hxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2009 Code Synthesis Tools CC +// license : MIT; see accompanying LICENSE file + +#ifndef CUTL_META_POLYMORPHIC_HXX +#define CUTL_META_POLYMORPHIC_HXX + +#include <cutl/meta/class-p.hxx> +#include <cutl/meta/remove-cv.hxx> + +namespace cutl +{ + 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 // CUTL_META_POLYMORPHIC_HXX |