ceph/src/boost/libs/mpl/include/boost/mpl/aux_/preprocessor/is_seq.hpp

   1
   2 #ifndef BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED
   3 #define BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED
   4
   5 // Copyright Paul Mensonides 2003
   6 // Copyright Aleksey Gurtovoy 2003-2004
   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/preprocessor/seq/size.hpp>
  19 #include <boost/preprocessor/arithmetic/dec.hpp>
  20 #include <boost/preprocessor/punctuation/paren.hpp>
  21 #include <boost/preprocessor/cat.hpp>
  22 #include <boost/preprocessor/config/config.hpp>
  23
  24 // returns 1 if 'seq' is a PP-sequence, 0 otherwise:
  25 //
  26 //   BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_IS_SEQ( int ) ) )
  27 //   BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (int) ) )
  28 //   BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (1)(2) ) )
  29
  30 #if (BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()) || defined(_MSC_VER) && defined(__INTEL_COMPILER) && __INTEL_COMPILER == 1010
  31
  32 #   define BOOST_MPL_PP_IS_SEQ(seq) BOOST_PP_DEC( BOOST_PP_SEQ_SIZE( BOOST_MPL_PP_IS_SEQ_(seq) ) )
  33 #   define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_MPL_PP_IS_SEQ_SEQ_( BOOST_MPL_PP_IS_SEQ_SPLIT_ seq )
  34 #   define BOOST_MPL_PP_IS_SEQ_SEQ_(x) (x)
  35 #   define BOOST_MPL_PP_IS_SEQ_SPLIT_(unused) unused)((unused)
  36
  37 #else
  38
  39 #   if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  40 #       define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_MWCC_((seq))
  41 #       define BOOST_MPL_PP_IS_SEQ_MWCC_(args) BOOST_MPL_PP_IS_SEQ_ ## args
  42 #   else
  43 #       define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_(seq)
  44 #   endif
  45
  46 #   define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_PP_CAT(BOOST_MPL_PP_IS_SEQ_, BOOST_MPL_PP_IS_SEQ_0 seq BOOST_PP_RPAREN())
  47 #   define BOOST_MPL_PP_IS_SEQ_0(x) BOOST_MPL_PP_IS_SEQ_1(x
  48 #   define BOOST_MPL_PP_IS_SEQ_ALWAYS_0(unused) 0
  49 #   define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_0 BOOST_MPL_PP_IS_SEQ_ALWAYS_0(
  50 #   define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_1(unused) 1
  51
  52 #endif
  53
  54 #endif // BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED