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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_object is_object]
- template <class T>
- struct is_object : public __tof {};
-
- __inherit If T is a (possibly cv-qualified) object type
- then inherits from __true_type,
- otherwise inherits from __false_type. All types are object types except
- references, void, and function types.
- __std_ref 3.9p9.
- [all_compilers]
- __header ` #include <boost/type_traits/is_object.hpp>` or ` #include <boost/type_traits.hpp>`
- __examples
- [:`is_object<int>` inherits from `__true_type`.]
- [:`is_object<int*>::type` is the type `__true_type`.]
- [:`is_object<int (*)(void)>::value` is an integral constant
- expression that evaluates to /true/.]
- [:`is_object<int (MyClass::*)(void)const>::value` is an integral constant
- expression that evaluates to /true/.]
- [:`is_object<int &>::value` is an integral constant
- expression that evaluates to /false/: reference types are not objects]
- [:`is_object<int (double)>::value` is an integral constant
- expression that evaluates to /false/: function types are not objects]
- [:`is_object<const void>::value` is an integral constant
- expression that evaluates to /false/: void is not an object type]
- [:`is_object<T>::value_type` is the type `bool`.]
- [endsect]
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