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| 2 | #ifndef BOOST_MPL_PROTECT_HPP_INCLUDED |
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| 3 | #define BOOST_MPL_PROTECT_HPP_INCLUDED |
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| 4 | |
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| 5 | // Copyright Peter Dimov 2001 |
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| 6 | // Copyright Aleksey Gurtovoy 2002-2004 |
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| 7 | // |
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| 8 | // Distributed under the Boost Software License, Version 1.0. |
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| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 11 | // |
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| 12 | // See http://www.boost.org/libs/mpl for documentation. |
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| 13 | |
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| 14 | // $Id$ |
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| 15 | // $Date$ |
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| 16 | // $Revision$ |
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| 17 | |
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| 18 | #include <boost/mpl/aux_/arity.hpp> |
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| 19 | #include <boost/mpl/aux_/config/dtp.hpp> |
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| 20 | #include <boost/mpl/aux_/nttp_decl.hpp> |
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| 21 | #include <boost/mpl/aux_/na_spec.hpp> |
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| 22 | |
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| 23 | namespace boost { namespace mpl { |
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| 24 | |
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| 25 | template< |
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| 26 | typename BOOST_MPL_AUX_NA_PARAM(T) |
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| 27 | , int not_le_ = 0 |
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| 28 | > |
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| 29 | struct protect : T |
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| 30 | { |
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| 31 | #if BOOST_WORKAROUND(__EDG_VERSION__, == 238) |
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| 32 | typedef mpl::protect type; |
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| 33 | #else |
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| 34 | typedef protect type; |
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| 35 | #endif |
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| 36 | }; |
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| 37 | |
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| 38 | #if defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) |
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| 39 | namespace aux { |
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| 40 | template< BOOST_MPL_AUX_NTTP_DECL(int, N), typename T > |
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| 41 | struct arity< protect<T>, N > |
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| 42 | : arity<T,N> |
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| 43 | { |
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| 44 | }; |
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| 45 | } // namespace aux |
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| 46 | #endif |
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| 47 | |
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| 48 | BOOST_MPL_AUX_NA_SPEC_MAIN(1, protect) |
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| 49 | #if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT) |
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| 50 | BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(1, 1, protect) |
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| 51 | #endif |
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| 52 | |
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| 53 | }} |
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| 54 | |
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| 55 | #endif // BOOST_MPL_PROTECT_HPP_INCLUDED |
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| 56 | |
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