------- Additional Comments From bredelin at ucla dot edu 2005-02-17 16:45 ------- Note that this bug breaks BOOST.
Here is a reduced testcase, which comes from boost/mpl/aux_/integral_wrapper.hpp: ------------------ begin testcase template< typename T, T N > struct integral_c { static const T value = N; typedef integral_c< T, static_cast<T>((value + 1)) > next; // typedef integral_c< T, static_cast<T>((value - 1)) > prior; // operator T() const { return static_cast<T>(this->value); } }; ------------------- end testcase % g++-cvs testcase.C c.C:6: error: template argument 2 is invalid The original error was obtained by including <boost/numeric/ublas/matrix.hpp> The following error was recieved: In file included from /usr/include/boost/config.hpp:35, from /usr/include/boost/numeric/ublas/config.hpp:24, from /usr/include/boost/numeric/ublas/matrix.hpp:20, from a.C:1: /usr/include/boost/config/compiler/gcc.hpp:92:7: warning: #warning "Unknown compiler version - please run the configure tests and report the results" /usr/include/boost/mpl/aux_/integral_wrapper.hpp:72: error: template argument 2 is invalid /usr/include/boost/mpl/aux_/integral_wrapper.hpp:73: error: template argument 2 is invalid -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19883