id summary reporter owner description type status milestone component version severity resolution keywords cc 9506 @#ifndef - what's it doing in Boost sources? walter@… John Maddock "Looking at the boost file: http://www.boost.org/doc/libs/1_55_0b1/boost/type_traits/detail/is_mem_fun_pointer_impl.hpp towards the end, there are these lines: @#ifndef BOOST_TT_NO_ELLIPSIS_IN_FUNC_TESTING template