id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2817	boost::iostreams::file_descriptor::is_open() implemented incorrectly	boost@…	Jonathan Turkanis	"On line 70 of file_descriptor.hpp the is_open() function checks if flags are zero to determine if the file descriptor is open:

  bool is_open() const { return pimpl_->flags_ != 0; }

pimpl_->flags_ is always zero unless close_on_exit is enabled.  So close_on_exit is the only thing that determines what is_open() will return.  I believe the code should be:

#ifdef BOOST_IOSTREAMS_WINDOWS
  bool is_open() const { return pimpl_->handle_ != reinterpret_cast<handle_type>(1); }
#else
  bool is_open() const { return pimpl_->handle_ != -1; }
#endif

Thanks!"	Bugs	closed	Boost 1.39.0	iostreams	Boost 1.38.0	Problem	fixed	file_descriptor is_open