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- [/
- Copyright 2007 John Maddock.
- Distributed under the Boost Software License, Version 1.0.
- (See accompanying file LICENSE_1_0.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt).
- ]
- [section:is_polymorphic is_polymorphic]
- template <class T>
- struct is_polymorphic : public __tof {};
-
- __inherit If T is a (possibly cv-qualified) polymorphic type
- then inherits from __true_type,
- otherwise inherits from __false_type. Type `T` must be a complete type.
- __std_ref 10.3.
- __compat The implementation requires some knowledge of the compilers ABI,
- it does actually seem to work with the majority of compilers though.
- __header ` #include <boost/type_traits/is_polymorphic.hpp>` or ` #include <boost/type_traits.hpp>`
- __examples
- [: Given: `class poly{ virtual ~poly(); };` ]
- [:`is_polymorphic<poly>` inherits from `__true_type`.]
- [:`is_polymorphic<poly const>::type` is the type `__true_type`.]
- [:`is_polymorphic<poly>::value` is an integral constant
- expression that evaluates to /true/.]
- [:`is_polymorphic<T>::value_type` is the type `bool`.]
- [endsect]
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