Daniel James wrote:
David Abrahams wrote:
Are you sure that you don't have G++ set to treat warnings as errors? This has shown up as a warning in other cases, but we decided not to apply a workaround to eval_if because that would just propagate the need for a workaround further out.
I don't think so. I've tried again using:
g++ -Wno-error -I ../../.. -I /home/daniel/projects/boost named_params_test.cpp
and it still fails.
I checked in a fix for this to the sandbox CVS. Index: named_params.hpp =================================================================== RCS file: /cvsroot/boost-sandbox/boost-sandbox/boost/named_params.hpp,v retrieving revision 1.28 retrieving revision 1.29 diff -u -r1.28 -r1.29 --- named_params.hpp 5 Nov 2004 14:18:21 -0000 1.28 +++ named_params.hpp 14 Nov 2004 08:02:43 -0000 1.29 @@ -418,6 +418,12 @@ typedef mpl::bool_<value> type; }; + template <class T> + struct get_type + { + typedef typename T::type type; + }; + // Produces the unwrapped type to hold a reference to in named<> // Can't use boost::unwrap_reference<> here because it // doesn't handle the case where T = const reference_wrapper<U> @@ -426,7 +432,7 @@ { typedef typename mpl::eval_if< is_const_reference_wrapper<T> - , T + , get_type<T> , mpl::identity<T> >::type type; }; Thanks, -- Daniel Wallin