Re: Minutes of the 13th September 2018 Teleconference

2018-09-13 Thread Bruce Evans
On Thu, 13 Sep 2018, Andrew Josey wrote: Bug 0001133: find clarification on -xdev behavior for mounted filesystem within primary OPEN http://austingroupbugs.net/view.php?id=1133 We discussed this item. We believe that the current wording in the standard requires mount points to be included

Re: futimens

2018-01-29 Thread Bruce Evans
On Mon, 29 Jan 2018, Nick Stoughton wrote: Statement [1] is about granularity ... if the implementation, for example, only handles 1 second timestamp resolution, then the effect of futimesns() is to truncate the time by ignoring the tv_nsec portion ... it must not attempt to round up the value.

Re: [1003.1(2016)/Issue7+TC2 0001178]: atan2: Description of IEC 60559 Floating-Point option is unclear

2017-12-17 Thread Bruce Evans
On Mon, 18 Dec 2017, I wrote: ... Example: if y = DBL_MIN and x = 2, then y/x underflows to DBL_MIN/2, but the infinite-precision result for atan2(x, y) is slightly larger, so in round-towards-plus-infinity mode the result should never be y/x, but must larger. How much larger? About

Re: [1003.1(2016)/Issue7+TC2 0001178]: atan2: Description of IEC 60559 Floating-Point option is unclear

2017-12-17 Thread Bruce Evans
On Sun, 17 Dec 2017, Austin Group Bug Tracker wrote: Summary:atan2: Description of IEC 60559 Floating-Point option is unclear Description: What is meaning of the following statement: If the IEC 60559 Floating-Point option is supported, y/ x should be returned. This is

Re: Fwd: RE: complex.h functions and errno

2017-11-09 Thread Bruce Evans
On Thu, 9 Nov 2017, Hal Finkel wrote: Forwarded Message ... From Jim Thomas. I???ll leave it to you to forward this to Austin Group. Hal is correct, and I think the response to him misses the point that he raised. Agreed. What Hal was talking about was the fact

Re: complex.h functions and errno

2017-11-09 Thread Bruce Evans
On Thu, 9 Nov 2017, Joseph Myers wrote: On Thu, 9 Nov 2017, Hal Finkel wrote: Thus, neither cabs, nor most other math.h/complex.h functions taking floating-point inputs and producing a floating-point output, should ever formally overflow (because even infinity lies within the represented

Re: complex.h functions and errno

2017-11-09 Thread Bruce Evans
On Wed, 8 Nov 2017, Joseph Myers wrote: On Wed, 8 Nov 2017, Bruce Evans wrote: This is without Annex F (IEEE754/IOCmumble bindings). With Annex F, Actually Annex G (F is for plain floating point types and G is for complex floating point types). cabs() is specified in terms of hypot

Re: complex.h functions and errno

2017-11-08 Thread Bruce Evans
On Tue, 7 Nov 2017, Hal Finkel wrote: My reading of the combined C and POSIX specifications leads me to believe that functions in complex.h don't set errno on POSIX systems. This came up recently during a code review for the Clang compiler [1]. It has been pointed out that, under glibc,