pqs-1-00-03-boost Bugs list 1) In "boost/pqs/operations/det_delog.hpp" One specialisation of struct boost::pqs::detail::delog fails to deduce correct pow function to call. fix: At line 145 in "boost/pqs/operations/det_delog.hpp" replace the original code: static result_type get() { static typename return_traits::body_constant_type val = std::pow(of_quantity::exponent_base, static_cast<value_type>(Nume) / static_cast<value_type>(Denom) ); return val; } with: static result_type get() { static typename return_traits::body_constant_type val = std::pow(static_cast<value_type>(of_quantity::exponent_base), static_cast<value_type>(Nume) / static_cast<value_type>(Denom) ); return val; } regards Andy Little