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 55