Bugs item #1682161, was opened at 2007-03-16 07:30 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1682161&group_id=7586 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: iostreams file_descriptor::write fails under Win32 Initial Comment: in 1.33.1, file_descriptor::write(), append mode implemented as #ifdef BOOST_IOSTREAMS_WINDOWS if (pimpl_->flags_ & impl::has_handle) { if (pimpl_->flags_ & impl::append) { ::SetFilePointer(pimpl_->handle_, 0, NULL, FILE_END); if (::GetLastError() != NO_ERROR) throw detail::bad_seek(); it is common mistake to call GetLastError() without checking function return value first. MSDN has special note for SetFilePointer(): "Note If the function returns a value other than INVALID_SET_FILE_POINTER, the call to SetFilePointer has succeeded. You do not need to call GetLastError." So, file_descriptor::write() fails, if there is old uncleaned "last" error Regards, valeri.antonov@gmail.com ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1682161&group_id=7586 ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs