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3rdparty/boost_1_81_0/boost/vmd/empty.hpp 982 Bytes
dbf9e800   Hu Chunming   提交_GLIBCXX_USE_CX...
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  //  (C) Copyright Edward Diener 2011-2015
  //  Use, modification and distribution are subject to 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).
  
  #if !defined(BOOST_VMD_EMPTY_HPP)
  #define BOOST_VMD_EMPTY_HPP
  
  #include <boost/vmd/detail/setup.hpp>
  
  #if BOOST_PP_VARIADICS
  
  /*
  
    The succeeding comments in this file are in doxygen format.
  
  */
  
  /** \file
  */
  
  /** \def BOOST_VMD_EMPTY(...)
  
      \brief Outputs emptiness.
  
      ... = any variadic parameters. The parameters are ignored.
      
      This macro is used to output emptiness ( nothing ) no matter
      what is passed to it.
      
      If you use this macro to return a result, as in 'result BOOST_VMD_EMPTY'
      subsequently invoked, you should surround the result with 
      BOOST_VMD_IDENTITY_RESULT to smooth over a VC++ problem.
      
  */
      
  #define BOOST_VMD_EMPTY(...)
  
  #endif /* BOOST_PP_VARIADICS */
  #endif /* BOOST_VMD_EMPTY_HPP */