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1 | // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com) | |
2 | // (C) Copyright 2003-2007 Jonathan Turkanis | |
3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) | |
5 | ||
6 | // See http://www.boost.org/libs/iostreams for documentation. | |
7 | ||
8 | #ifndef BOOST_IOSTREAMS_OPERATIONS_FWD_HPP_INCLUDED | |
9 | #define BOOST_IOSTREAMS_OPERATIONS_FWD_HPP_INCLUDED | |
10 | ||
11 | #if defined(_MSC_VER) | |
12 | # pragma once | |
13 | #endif | |
14 | ||
15 | #include <boost/mpl/not.hpp> | |
16 | #include <boost/type_traits/is_base_and_derived.hpp> | |
17 | ||
18 | namespace boost { namespace iostreams { | |
19 | ||
20 | template<typename T> | |
21 | struct operations; | |
22 | ||
23 | namespace detail { | |
24 | ||
25 | struct custom_tag { }; | |
26 | ||
27 | template<typename T> | |
28 | struct is_custom | |
29 | : mpl::not_< | |
30 | is_base_and_derived< custom_tag, operations<T> > | |
31 | > | |
32 | { }; | |
33 | ||
34 | } // End namespace detail. | |
35 | ||
36 | template<typename T> | |
37 | struct operations : detail::custom_tag { }; | |
38 | ||
39 | } } // End namespaces iostreams, boost. | |
40 | ||
41 | #endif // #ifndef BOOST_IOSTREAMS_OPERATIONS_FWD_HPP_INCLUDED //--------------// |