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3rdparty/boost_1_81_0/boost/mpl/apply_fwd.hpp 2.6 KB
63e88f80   Hu Chunming   提交三方库
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  #if !defined(BOOST_PP_IS_ITERATING)
  
  ///// header body
  
  #ifndef BOOST_MPL_APPLY_FWD_HPP_INCLUDED
  #define BOOST_MPL_APPLY_FWD_HPP_INCLUDED
  
  // Copyright Aleksey Gurtovoy 2000-2004
  //
  // 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)
  //
  // See http://www.boost.org/libs/mpl for documentation.
  
  // $Id$
  // $Date$
  // $Revision$
  
  #if !defined(BOOST_MPL_PREPROCESSING_MODE)
  #   include <boost/mpl/aux_/na.hpp>
  #endif
  
  #include <boost/mpl/aux_/config/use_preprocessed.hpp>
  
  #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
      && !defined(BOOST_MPL_PREPROCESSING_MODE)
  
  #   define BOOST_MPL_PREPROCESSED_HEADER apply_fwd.hpp
  #   include <boost/mpl/aux_/include_preprocessed.hpp>
  
  #else
  
  #   include <boost/mpl/limits/arity.hpp>
  #   include <boost/mpl/aux_/preprocessor/params.hpp>
  #   include <boost/mpl/aux_/preprocessor/default_params.hpp>
  #   include <boost/mpl/aux_/config/ctps.hpp>
  #   include <boost/mpl/aux_/nttp_decl.hpp>
  
  #   include <boost/preprocessor/comma_if.hpp>
  #   include <boost/preprocessor/iterate.hpp>
  #   include <boost/preprocessor/cat.hpp>
  
  // agurt, 15/jan/02: top-level 'apply' template gives an ICE on MSVC
  // (for known reasons)
  #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
  #   define BOOST_MPL_CFG_NO_APPLY_TEMPLATE
  #endif
  
  namespace boost { namespace mpl {
  
  // local macro, #undef-ined at the end of the header
  #   define AUX778076_APPLY_DEF_PARAMS(param, value) \
      BOOST_MPL_PP_DEFAULT_PARAMS( \
            BOOST_MPL_LIMIT_METAFUNCTION_ARITY \
          , param \
          , value \
          ) \
      /**/
  
  #   define AUX778076_APPLY_N_COMMA_PARAMS(n, param) \
      BOOST_PP_COMMA_IF(n) \
      BOOST_MPL_PP_PARAMS(n, param) \
      /**/
  
  #   if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE)
  
  #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
  // forward declaration
  template<
        typename F, AUX778076_APPLY_DEF_PARAMS(typename T, na)
      >
  struct apply;
  #else
  namespace aux {
  template< BOOST_AUX_NTTP_DECL(int, arity_) > struct apply_chooser;
  }
  #endif
  
  #   endif // BOOST_MPL_CFG_NO_APPLY_TEMPLATE
  
  #define BOOST_PP_ITERATION_PARAMS_1 \
      (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_fwd.hpp>))
  #include BOOST_PP_ITERATE()
  
  
  #   undef AUX778076_APPLY_N_COMMA_PARAMS
  #   undef AUX778076_APPLY_DEF_PARAMS
  
  }}
  
  #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
  #endif // BOOST_MPL_APPLY_FWD_HPP_INCLUDED
  
  ///// iteration
  
  #else
  #define i_ BOOST_PP_FRAME_ITERATION(1)
  
  template<
        typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T)
      >
  struct BOOST_PP_CAT(apply,i_);
  
  #undef i_
  #endif // BOOST_PP_IS_ITERATING