id summary reporter owner description type status milestone component version severity resolution keywords cc 5459 mistake document? : boost::is_convertible Akira Takahashi John Maddock "http://www.boost.org/doc/libs/1_46_1/libs/type_traits/doc/html/boost_typetraits/reference/is_convertible.html {{{ is_convertible::value is an integral constant expression that evaluates to false. }}} I think this is true. true is returned in Boost 1.46.1 + GCC 4.6." Bugs closed To Be Determined type_traits Boost 1.46.1 Problem fixed