| [/ |
| 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_void is_void] |
| template <class T> |
| struct is_void : public __tof {}; |
| |
| __inherit If T is a (possibly cv-qualified) void type then inherits from __true_type, |
| otherwise inherits from __false_type. |
| |
| __std_ref 3.9.1p9. |
| |
| [all_compilers] |
| |
| __header ` #include <boost/type_traits/is_void.hpp>` or ` #include <boost/type_traits.hpp>` |
| |
| __examples |
| |
| [:`is_void<void>` inherits from `__true_type`.] |
| |
| [:`is_void<const void>::type` is the type `__true_type`.] |
| |
| [:`is_void<void>::value` is an integral constant |
| expression that evaluates to /true/.] |
| |
| [:`is_void<void*>::value` is an integral constant |
| expression that evaluates to /false/.] |
| |
| [:`is_void<T>::value_type` is the type `bool`.] |
| |
| [endsect] |
| |