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POBoost Fusion compile failure when number of arguments to BOOST_FUSION_ADAPT_STRUCT is 2
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  1. POBoost Fusion compile failure when number of arguments to BOOST_FUSION_ADAPT_STRUCT is 2
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    copied!<p>Why does this fail to compile with g++ -c filename.cpp:</p> <pre><code>#include &lt;boost/config/warning_disable.hpp&gt; #include &lt;boost/spirit/include/qi.hpp&gt; #include &lt;boost/spirit/include/phoenix_core.hpp&gt; #include &lt;boost/spirit/include/phoenix_operator.hpp&gt; #include &lt;boost/spirit/include/phoenix_object.hpp&gt; #include &lt;boost/fusion/include/adapt_struct.hpp&gt; #include &lt;boost/fusion/include/io.hpp&gt; #include &lt;boost/lambda/lambda.hpp&gt; #include &lt;boost/spirit/include/phoenix_stl.hpp&gt; #include &lt;boost/variant/variant.hpp&gt; #include &lt;iostream&gt; namespace qi = boost::spirit::qi; namespace ascii = boost::spirit::ascii; namespace phoenix = boost::phoenix; namespace lambda = boost::lambda; using namespace std; struct Intensity { int intensity_; }; BOOST_FUSION_ADAPT_STRUCT( Intensity, (int, intensity_) ) template &lt;typename Iterator&gt; struct InternalParser : qi::grammar&lt;Iterator, Intensity(), ascii::space_type&gt; { InternalParser() : InternalParser::base_type(intensity) { intensity %= qi::int_; } qi::rule&lt;Iterator, Intensity(), ascii::space_type&gt; intensity; }; typedef InternalParser&lt;string::const_iterator&gt; TheParser; TheParser parser; </code></pre> <p>But if I add a new field to the struct Intensity it works:</p> <pre><code>#include &lt;boost/config/warning_disable.hpp&gt; #include &lt;boost/spirit/include/qi.hpp&gt; #include &lt;boost/spirit/include/phoenix_core.hpp&gt; #include &lt;boost/spirit/include/phoenix_operator.hpp&gt; #include &lt;boost/spirit/include/phoenix_object.hpp&gt; #include &lt;boost/fusion/include/adapt_struct.hpp&gt; #include &lt;boost/fusion/include/io.hpp&gt; #include &lt;boost/lambda/lambda.hpp&gt; #include &lt;boost/spirit/include/phoenix_stl.hpp&gt; #include &lt;boost/variant/variant.hpp&gt; #include &lt;iostream&gt; namespace qi = boost::spirit::qi; namespace ascii = boost::spirit::ascii; namespace phoenix = boost::phoenix; namespace lambda = boost::lambda; using namespace std; struct Intensity { int dummy_; int intensity_; }; BOOST_FUSION_ADAPT_STRUCT( Intensity, (int, dummy_) (int, intensity_) ) template &lt;typename Iterator&gt; struct InternalParser : qi::grammar&lt;Iterator, Intensity(), ascii::space_type&gt; { InternalParser() : InternalParser::base_type(intensity) { intensity %= qi::int_ &gt;&gt; qi::int_; } qi::rule&lt;Iterator, Intensity(), ascii::space_type&gt; intensity; }; typedef InternalParser&lt;string::const_iterator&gt; TheParser; TheParser parser; </code></pre> <p>Version of g++: gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)</p> <p>Boost version: 1.41.0</p>
 

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