| [/ |
| 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:alignment_of alignment_of] |
| template <class T> |
| struct alignment_of : public __integral_constant<std::size_t, ALIGNOF(T)> {}; |
| |
| __inherit Class template `alignment_of` inherits from |
| `__integral_constant<std::size_t, ALIGNOF(T)>`, where `ALIGNOF(T)` is the |
| alignment of type T. |
| |
| ['Note: strictly speaking you should only rely on |
| the value of `ALIGNOF(T)` being a multiple of the true alignment of T, although |
| in practice it does compute the correct value in all the cases we know about.] |
| |
| __header ` #include <boost/type_traits/alignment_of.hpp>` or ` #include <boost/type_traits.hpp>` |
| |
| __examples |
| |
| [:`alignment_of<int>` inherits from `__integral_constant<std::size_t, ALIGNOF(int)>`.] |
| |
| [:`alignment_of<char>::type` is the type `__integral_constant<std::size_t, ALIGNOF(char)>`.] |
| |
| [:`alignment_of<double>::value` is an integral constant |
| expression with value `ALIGNOF(double)`.] |
| |
| [:`alignment_of<T>::value_type` is the type `std::size_t`.] |
| |
| [endsect] |
| |