| // Boost.TypeErasure library |
| // |
| // Copyright 2011 Steven Watanabe |
| // |
| // 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) |
| // |
| // $Id$ |
| |
| #include <boost/type_erasure/builtin.hpp> |
| #include <boost/type_erasure/operators.hpp> |
| #include <boost/mpl/vector.hpp> |
| |
| namespace mpl = boost::mpl; |
| using namespace boost::type_erasure; |
| |
| //[compose1 |
| /*` |
| Multiple concepts can be composed using an MPL sequence. |
| */ |
| template<class T = _self> |
| struct arithmetic : |
| mpl::vector< |
| copy_constructible<T>, |
| addable<T>, |
| subtractable<T>, |
| multipliable<T>, |
| dividable<T>, |
| equality_comparable<T>, |
| less_than_comparable<T> |
| > |
| {}; |
| /*` |
| Now, `arithmetic` is a concept that can be used just |
| like any of the base concepts. |
| */ |
| //] |
| |
| //[compose |
| //` (For the source of the examples in this section see |
| //` [@boost:/libs/type_erasure/example/compose.cpp compose.cpp]) |
| //` [compose1] |
| //] |
