Hello all, Does Boost.Parameter support operators? The following example is from the docs but it doesn't compile. Looking at the preprocessed code /EP, the errors seem to be because the macro defines a struct template postfixing it with the operator name and symbol "template <class Args> struct boost_param_result_11operator() { ... };". Maybe this worked once before and it's now broken? #include <boost/parameter.hpp> #include <iostream> BOOST_PARAMETER_NAME(arg1) BOOST_PARAMETER_NAME(arg2) struct callable2 { BOOST_PARAMETER_CONST_MEMBER_FUNCTION( (void), operator(), tag, (required (arg1,(int))(arg2,(int)))) { std::cout << arg1 << ", " << arg2 << std::endl; } }; int main ( void ) { callable2 c; c(1, 2); return 0; } On MSVC 8 with latest Boost trunk: c02.cpp c02.cpp(11) : error C2988: unrecognizable template declaration/definition c02.cpp(11) : error C2059: syntax error : 'type' c02.cpp(11) : error C2334: unexpected token(s) preceding '{'; skipping apparent function body c02.cpp(11) : error C2988: unrecognizable template declaration/definition c02.cpp(11) : error C2059: syntax error : 'type' c02.cpp(11) : error C2334: unexpected token(s) preceding ':'; skipping apparent function body c02.cpp(11) : error C2143: syntax error : missing ';' before '<' c02.cpp(11) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c02.cpp(11) : error C2238: unexpected token(s) preceding ';' c02.cpp(11) : error C2143: syntax error : missing ';' before '<' c02.cpp(11) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c02.cpp(11) : error C2238: unexpected token(s) preceding ';' c02.cpp(11) : error C2988: unrecognizable template declaration/definition c02.cpp(11) : error C2059: syntax error : '<' c02.cpp(11) : error C3861: 'boost_param_parameters_11operator': identifier not found c02.cpp(11) : error C2039: 'type' : is not a member of '`global namespace'' c02.cpp(11) : error C3861: 'boost_param_parameters_11operator': identifier not found c02.cpp(11) : error C2039: 'type' : is not a member of 'boost::parameter::aux::match' ..\..\..\..\..\boost\trunk.windows\boost/parameter/preprocessor.hpp(99) : see declaration of 'boost::parameter::aux::match' c02.cpp(11) : error C2039: 'type' : is not a member of '`global namespace'' c02.cpp(11) : error C2334: unexpected token(s) preceding '{'; skipping apparent function body c02.cpp(14) : error C2270: 'boost_param_default_11operator' : modifiers not allowed on nonmember functions c02.cpp(14) : error C2091: function returns function c02.cpp(20) : error C2064: term does not evaluate to a function taking 2 arguments Thanks. --Lorenzo