Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.

The stderr stream is a FILE *, not a file descriptor. While a FILE record can make use of a descriptor, the C standard considers descriptors an extension, not a requirement. So, it's arguable the historical implementation will not compile or execute when __STDC_HOSTED__ is defined on a platform

[1003.1(2016)/Issue7+TC2 0001117]: Use of "implementation-defined" in command -v / -V

A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1117 == Reported By:geoffclare Assigned To: ==

Minutes of the 28th June 2018 Teleconference

All Enclosed are the minutes of this weeks meeting. The next meeting is July 12th. regards Andrew Minutes of the 28th June 2018 Teleconference Austin-874 Page 1 of 1 Submitted by Andrew Josey, The Open Group. 29th June 2018 Attendees: Mark Ziegast, SHware Systems Dev. Nick Stough

Austin Group teleconference +1-888-426-6840 PIN: 2115756

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Re: Historic perror() (was: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.)

"Schwarz, Konrad" wrote: > I think you are confusing things. > > perror() writes to stderr, which is unbuffered by default, i.e. is "fairly > fast". Did you look into genetical UNIX code? Jörg -- EMail:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill

RE: Historic perror() (was: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.)

> -Original Message- > From: Joerg Schilling [mailto:joerg.schill...@fokus.fraunhofer.de] > Sent: Friday, June 29, 2018 12:46 PM > To: g...@opengroup.org; austin-group-l@opengroup.org > Subject: Re: Historic perror() (was: perror() changes the orientation > of stderr to byte-oriented mode

Re: Historic perror() (was: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.)

Geoff Clare wrote: > I would say they had good reason: fixing a misfeature. > > If you freopen() stderr to be a plain file, then it becomes fully buffered > and if perror() writes directly to fd 2 its output will appear in the file > before characters that are already in the buffer. (Or are you

Historic perror() (was: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.)

Joerg Schilling wrote, on 29 Jun 2018: > > Geoff Clare wrote: > > > Joerg Schilling wrote, on 29 Jun 2018: > > > > > > the historic implementation calls write(2) to STDERR_FILENO. > > > > The C Standard says that perror() writes to the standard error stream. > > The historic implementation does

Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.

Geoff Clare wrote: > Joerg Schilling wrote, on 29 Jun 2018: > > > > the historic implementation calls write(2) to STDERR_FILENO. > > The C Standard says that perror() writes to the standard error stream. > The historic implementation does not conform to the C Standard. Then the C standard is wr

Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.

Joerg Schilling wrote, on 29 Jun 2018: > > the historic implementation calls write(2) to STDERR_FILENO. The C Standard says that perror() writes to the standard error stream. The historic implementation does not conform to the C Standard. -- Geoff Clare The Open Group, Apex Plaza, Forbury Road

Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.

Eric Blake wrote: > I'm forwarding an email originally sent to the Cygwin list. What do > others think? Is there enough grounds in the argument below that the > CX-shading in POSIX is too strict compared to existing implementations, > and that I ought to open a bug to change the wording on the

Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.

Eric Blake wrote, on 28 Jun 2018: > > I'm forwarding an email originally sent to the Cygwin list. What do others > think? Is there enough grounds in the argument below that the CX-shading in > POSIX is too strict compared to existing implementations, and that I ought > to open a bug to change the