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1 |
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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 // $Source: /cvsroot/boost/boost/boost/mpl/protect.hpp,v $ |
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15 // $Date: 2004/09/07 21:37:24 $ |
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16 // $Revision: 1.10 $ |
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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 |