id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
5668,epoll_reactor implicit type conversion warnings:,David Benoit <benoit@…>,chris_kohlhoff,"I'm using boost 1.46.1 with gcc 4.1.2-44-rhel5 and -Wconversion and I get the following warnings (which are a problem as soon as I turn on -Werror):

boost/asio/detail/impl/epoll_reactor.ipp: In constructor 'boost::asio::detail::epoll_reactor::epoll_reactor(boost::asio::io_service&)':
boost/asio/detail/impl/epoll_reactor.ipp:53: warning: negative integer implicitly converted to unsigned type
boost/asio/detail/impl/epoll_reactor.ipp: In member function 'int boost::asio::detail::epoll_reactor::register_descriptor(boost::asio::detail::socket_type, boost::asio::detail::epoll_reactor::descriptor_state*&)':
boost/asio/detail/impl/epoll_reactor.ipp:109: warning: negative integer implicitly converted to unsigned type
boost/asio/detail/impl/epoll_reactor.ipp: In member function 'void boost::asio::detail::epoll_reactor::start_op(int, boost::asio::detail::socket_type, boost::asio::detail::epoll_reactor::descriptor_state*&, boost::asio::detail::reactor_op*, bool)':
boost/asio/detail/impl/epoll_reactor.ipp:154: warning: negative integer implicitly converted to unsigned type
boost/asio/detail/impl/epoll_reactor.ipp: In member function 'void boost::asio::detail::epoll_reactor::interrupt()':
boost/asio/detail/impl/epoll_reactor.ipp:319: warning: negative integer implicitly converted to unsigned type

In all of these cases, the line in question is of the form:

 ev.events = EPOLLIN | EPOLLERR | EPOLLET;

Specifically, that EPOLLET (1 << 31), which is unsigned as an int, is included.  (For example, line 61 doesn't have the same warning).

Could the values here (EPOLLET at a minimum) please be wrapped as uint32_t (the type of ev.events)?  (i.e. replacing all instances of EPOLLET with uint32_t(EPOLLET) removes the warning).

Thanks!",Bugs,closed,To Be Determined,asio,Boost 1.47.0,Problem,wontfix,,