Hi List, The code below fails to compile with MSVC8 when the macro MAKE_THINGS_FAIL is defined. I hope the code reads well enough to communicate the problem and why it would be quite hot to get it fixed ;-). Thanks a lot for your help, Tobias #include <boost/spirit/core.hpp> #include <boost/typeof/typeof.hpp> #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP() BOOST_TYPEOF_REGISTER_TYPE(boost::spirit::anychar_parser) BOOST_TYPEOF_REGISTER_TEMPLATE(boost::spirit::action, 2) BOOST_TYPEOF_REGISTER_TEMPLATE(boost::spirit::positive, 1) #define an_expression +anychar_p[ a_placeholder ] typedef void (* fptr)(char const * from, char const * to); void echo(char const * from, char const * to) { // [...] } #ifndef MAKE_THINGS_FAIL using boost::spirit::anychar_p; class a_rule_parser : boost::spirit::parser<a_rule_parser> { fptr a_placeholder; struct __rule { // hide the placeholder member variable of the outer class with a static // variable of the same type static fptr & a_placeholder; typedef BOOST_TYPEOF( an_expression ) type; }; __rule::type __expr; public: a_rule_parser(fptr placeholder) : a_placeholder( placeholder ) , __expr( an_expression ) { } // [...] (it's stripped down code to show a bug) }; int main() { a_rule_parser x(& echo); return 0; } // so far, so good... #else // ...but the same code in templated form makes msvc8 do strange things // using boost::spirit::anychar_p; using namespace boost::spirit; // ADL doesn't seem to work, either but I could live with this problem ;-) template<typename T> class a_rule_parser_template : boost::spirit::parser< a_rule_parser_template<T> > { T a_placeholder; struct __rule { // hide the placeholder member variable of the outer class with a static // variable of the same type static T & a_placeholder; typedef BOOST_TYPEOF_TPL( an_expression ) type; }; typename __rule::type __expr; public: a_rule_parser_template(T const & placeholder) : a_placeholder( placeholder ) , __expr( an_expression ) { } // [...] (it's stripped down code to show a bug) }; int main() { a_rule_parser_template<fptr> x(& echo); return 0; } #endif