Fusion: adapt-macros: allow empty boost.pp sequences; refs #5093

[SVN r68303]
This commit is contained in:
Christopher Schmidt
2011-01-19 17:46:05 +00:00
parent 7f3cd8b46a
commit beec2bff62
10 changed files with 110 additions and 50 deletions

View File

@@ -1,7 +1,7 @@
/*=============================================================================
Copyright (c) 2001-2009 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
Copyright (c) 2009-2010 Christopher Schmidt
Copyright (c) 2009-2011 Christopher Schmidt
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)
@@ -23,6 +23,7 @@
#include <boost/preprocessor/seq/seq.hpp>
#include <boost/preprocessor/tuple/eat.hpp>
#include <boost/preprocessor/tuple/elem.hpp>
#include <boost/preprocessor/arithmetic/dec.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/tag.hpp>
#include <boost/mpl/eval_if.hpp>
@@ -185,18 +186,21 @@ namespace boost
\
namespace extension \
{ \
BOOST_PP_SEQ_FOR_EACH_I_R( \
1, \
BOOST_FUSION_ADAPT_STRUCT_BASE_UNPACK_AND_CALL, \
(ATTRIBUTES_CALLBACK,TEMPLATE_PARAMS_SEQ,NAME_SEQ), \
ATTRIBUTES_SEQ) \
BOOST_PP_IF( \
BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
BOOST_PP_SEQ_FOR_EACH_I_R, \
BOOST_PP_TUPLE_EAT(4))( \
1, \
BOOST_FUSION_ADAPT_STRUCT_BASE_UNPACK_AND_CALL, \
(ATTRIBUTES_CALLBACK,TEMPLATE_PARAMS_SEQ,NAME_SEQ), \
BOOST_PP_SEQ_TAIL(ATTRIBUTES_SEQ)) \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
> \
struct struct_size<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)> \
: mpl::int_<BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)> \
: mpl::int_<BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ))> \
{}; \
\
template< \