boost/mpl/aux_/preprocessor/is_seq.hpp
#ifndef BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED #define BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED // Copyright Paul Mensonides 2003 // Copyright Aleksey Gurtovoy 2003-2004 // // 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. // $Id$ // $Date$ // $Revision$ #include <boost/preprocessor/seq/size.hpp> #include <boost/preprocessor/arithmetic/dec.hpp> #include <boost/preprocessor/punctuation/paren.hpp> #include <boost/preprocessor/cat.hpp> #include <boost/preprocessor/config/config.hpp> // returns 1 if 'seq' is a PP-sequence, 0 otherwise: // // BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_IS_SEQ( int ) ) ) // BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (int) ) ) // BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (1)(2) ) ) #if (BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()) || defined(_MSC_VER) && defined(__INTEL_COMPILER) && __INTEL_COMPILER == 1010 # define BOOST_MPL_PP_IS_SEQ(seq) BOOST_PP_DEC( BOOST_PP_SEQ_SIZE( BOOST_MPL_PP_IS_SEQ_(seq) ) ) # define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_MPL_PP_IS_SEQ_SEQ_( BOOST_MPL_PP_IS_SEQ_SPLIT_ seq ) # define BOOST_MPL_PP_IS_SEQ_SEQ_(x) (x) # define BOOST_MPL_PP_IS_SEQ_SPLIT_(unused) unused)((unused) #else # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC() # define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_MWCC_((seq)) # define BOOST_MPL_PP_IS_SEQ_MWCC_(args) BOOST_MPL_PP_IS_SEQ_ ## args # else # define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_(seq) # endif # 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()) # define BOOST_MPL_PP_IS_SEQ_0(x) BOOST_MPL_PP_IS_SEQ_1(x # define BOOST_MPL_PP_IS_SEQ_ALWAYS_0(unused) 0 # define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_0 BOOST_MPL_PP_IS_SEQ_ALWAYS_0( # define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_1(unused) 1 #endif #endif // BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED