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1 | |
2 | #ifndef BOOST_MPL_PROTECT_HPP_INCLUDED | |
3 | #define BOOST_MPL_PROTECT_HPP_INCLUDED | |
4 | ||
5 | // Copyright Peter Dimov 2001 | |
6 | // Copyright Aleksey Gurtovoy 2002-2004 | |
7 | // | |
8 | // Distributed under the Boost Software License, Version 1.0. | |
9 | // (See accompanying file LICENSE_1_0.txt or copy at | |
10 | // http://www.boost.org/LICENSE_1_0.txt) | |
11 | // | |
12 | // See http://www.boost.org/libs/mpl for documentation. | |
13 | ||
14 | // $Id$ | |
15 | // $Date$ | |
16 | // $Revision$ | |
17 | ||
18 | #include <boost/mpl/aux_/arity.hpp> | |
19 | #include <boost/mpl/aux_/config/dtp.hpp> | |
20 | #include <boost/mpl/aux_/nttp_decl.hpp> | |
21 | #include <boost/mpl/aux_/na_spec.hpp> | |
22 | ||
23 | namespace boost { namespace mpl { | |
24 | ||
25 | template< | |
26 | typename BOOST_MPL_AUX_NA_PARAM(T) | |
27 | , int not_le_ = 0 | |
28 | > | |
29 | struct protect : T | |
30 | { | |
31 | #if BOOST_WORKAROUND(__EDG_VERSION__, == 238) | |
32 | typedef mpl::protect type; | |
33 | #else | |
34 | typedef protect type; | |
35 | #endif | |
36 | }; | |
37 | ||
38 | #if defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) | |
39 | namespace aux { | |
40 | template< BOOST_MPL_AUX_NTTP_DECL(int, N), typename T > | |
41 | struct arity< protect<T>, N > | |
42 | : arity<T,N> | |
43 | { | |
44 | }; | |
45 | } // namespace aux | |
46 | #endif | |
47 | ||
48 | BOOST_MPL_AUX_NA_SPEC_MAIN(1, protect) | |
49 | #if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT) | |
50 | BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(1, 1, protect) | |
51 | #endif | |
52 | ||
53 | }} | |
54 | ||
55 | #endif // BOOST_MPL_PROTECT_HPP_INCLUDED |