1[/ 2 Copyright 2007 John Maddock. 3 Distributed under the Boost Software License, Version 1.0. 4 (See accompanying file LICENSE_1_0.txt or copy at 5 http://www.boost.org/LICENSE_1_0.txt). 6] 7 8[section:is_object is_object] 9 template <class T> 10 struct is_object : public __tof {}; 11 12__inherit If T is a (possibly cv-qualified) object type 13then inherits from __true_type, 14otherwise inherits from __false_type. All types are object types except 15references, void, and function types. 16 17__std_ref 3.9p9. 18 19__header ` #include <boost/type_traits/is_object.hpp>` or ` #include <boost/type_traits.hpp>` 20 21__examples 22 23[:`is_object<int>` inherits from `__true_type`.] 24 25[:`is_object<int*>::type` is the type `__true_type`.] 26 27[:`is_object<int (*)(void)>::value` is an integral constant 28expression that evaluates to /true/.] 29 30[:`is_object<int (MyClass::*)(void)const>::value` is an integral constant 31expression that evaluates to /true/.] 32 33[:`is_object<int &>::value` is an integral constant 34expression that evaluates to /false/: reference types are not objects] 35 36[:`is_object<int (double)>::value` is an integral constant 37expression that evaluates to /false/: function types are not objects] 38 39[:`is_object<const void>::value` is an integral constant 40expression that evaluates to /false/: void is not an object type] 41 42[:`is_object<T>::value_type` is the type `bool`.] 43 44[endsect] 45 46