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Re: Calling conventions (particularly 32-bit ARM)

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From Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups comp.arch
Subject Re: Calling conventions (particularly 32-bit ARM)
Date Tue, 14 Jan 2025 16:59:46 -0800
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scott@slp53.sl.home (Scott Lurndal) writes:
> Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:
>>scott@slp53.sl.home (Scott Lurndal) writes:
>>> Thomas Koenig <tkoenig@netcologne.de> writes:
>>[...]
>>>>What I was criticising was the comittee(s) which made errno handling
>>>>for functions like sin() and cos() mandatory, and put activating
>>>>it in a globel flag.
>>>
>>> It's not mandatory.   It's listed as an optional extension, and
>>> even when implemented, it's opt-in at compile time.
>>>
>>>   "The functionality described is optional. The functionality
>>>    described is mandated by the ISO C standard only for implementations
>>>    that define __STDC_IEC_559__."
>>
>>I can't find that anywhere in ISO C or POSIX.  What exactly are you
>>quoting?  ISO C doesn't tie math_errhandling to __STDC_IEC_559__.
>
> https://pubs.opengroup.org/onlinepubs/9799919799/help/codes.html#MX

OK, but that covers IEC 559 functionality (IEEE floating-point).
The setting (or not) of errno by transcendental functions is
separate from that, and implementations use math_errhandling to
indicate what they do.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */

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Thread

Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-06 14:57 +0100
  Re: Calling conventions (particularly 32-bit ARM) Theo <theom+news@chiark.greenend.org.uk> - 2025-01-06 15:23 +0000
    Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-07 09:22 +0100
  Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-06 15:32 +0000
    Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-06 20:19 +0000
      Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-07 10:09 +0100
        Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-07 23:23 +0000
          Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-07 23:35 +0000
            Re: Calling conventions (particularly 32-bit ARM) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-01-07 15:42 -0800
              Re: Calling conventions (particularly 32-bit ARM) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-01-07 20:01 -0800
            Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-08 01:38 +0000
    Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-07 09:49 +0100
  Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-06 20:10 +0000
    Re: Calling conventions (particularly 32-bit ARM) antispam@fricas.org (Waldek Hebisch) - 2025-01-07 02:11 +0000
      Re: Calling conventions (particularly 32-bit ARM) Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-01-07 06:53 +0000
      Re: Calling conventions (particularly 32-bit ARM) Stephen Fuld <sfuld@alumni.cmu.edu.invalid> - 2025-01-12 12:10 -0800
        Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-12 20:41 +0000
        Re: Calling conventions (particularly 32-bit ARM) antispam@fricas.org (Waldek Hebisch) - 2025-01-13 01:20 +0000
          Re: Calling conventions (particularly 32-bit ARM) Stephen Fuld <sfuld@alumni.cmu.edu.invalid> - 2025-01-14 09:40 -0800
            Re: Calling conventions (particularly 32-bit ARM) Terje Mathisen <terje.mathisen@tmsw.no> - 2025-01-14 19:18 +0100
              Re: Calling conventions (particularly 32-bit ARM) Michael S <already5chosen@yahoo.com> - 2025-01-14 23:48 +0200
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-14 23:27 +0000
                Re: Calling conventions (particularly 32-bit ARM) John Levine <johnl@taugh.com> - 2025-01-15 03:31 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-15 16:50 +0000
                Re: Calling conventions (particularly 32-bit ARM) John Levine <johnl@taugh.com> - 2025-01-15 22:03 +0000
                Re: Calling conventions (particularly 32-bit ARM) antispam@fricas.org (Waldek Hebisch) - 2025-01-16 03:02 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-16 15:08 +0000
                Re: Calling conventions (particularly 32-bit ARM) antispam@fricas.org (Waldek Hebisch) - 2025-01-16 16:24 +0000
        Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-13 21:33 +0000
          Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-14 06:48 +0000
            Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-14 18:03 +0000
    Re: Calling conventions (particularly 32-bit ARM) George Neuner <gneuner2@comcast.net> - 2025-01-07 16:52 -0500
      Re: Calling conventions (particularly 32-bit ARM) Stefan Monnier <monnier@iro.umontreal.ca> - 2025-01-08 12:20 -0500
        Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-09 08:38 +0000
          Re: Calling conventions (particularly 32-bit ARM) Stefan Monnier <monnier@iro.umontreal.ca> - 2025-01-13 10:55 -0500
      Re: Calling conventions (particularly 32-bit ARM) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-01-27 17:09 -0800
        Re: Calling conventions (particularly 32-bit ARM) George Neuner <gneuner2@comcast.net> - 2025-01-28 22:53 -0500
          Re: Calling conventions (particularly 32-bit ARM) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-14 20:40 -0800
            Re: Calling conventions (particularly 32-bit ARM) George Neuner <gneuner2@comcast.net> - 2026-02-17 15:35 -0500
              Re: Calling conventions (particularly 32-bit ARM) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-03-14 09:34 -0700
                Re: Calling conventions (particularly 32-bit ARM) George Neuner <gneuner2@comcast.net> - 2026-03-24 17:20 -0400
    Re: Calling conventions (particularly 32-bit ARM) Stefan Monnier <monnier@iro.umontreal.ca> - 2025-01-08 12:34 -0500
      Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-08 20:19 +0000
      Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-08 22:08 +0000
        Re: Calling conventions (particularly 32-bit ARM) Stefan Monnier <monnier@iro.umontreal.ca> - 2025-01-08 18:20 -0500
          Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-09 00:11 +0000
          Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-09 07:23 +0000
            Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-09 10:07 +0000
              Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-10 08:24 +0000
            Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-09 20:48 +0000
              Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-09 21:23 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-10 01:08 +0000
                Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-10 09:19 +0000
            Re: Calling conventions (particularly 32-bit ARM) antispam@fricas.org (Waldek Hebisch) - 2025-01-10 08:33 +0000
              Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-10 10:25 +0000
                Re: Calling conventions (particularly 32-bit ARM) John Levine <johnl@taugh.com> - 2025-01-10 15:17 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-13 02:10 +0000
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-13 14:19 +0000
                Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-13 18:02 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-13 19:00 +0000
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-13 21:53 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-13 22:02 +0000
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-13 22:40 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-14 02:32 +0000
                Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-14 15:08 +0100
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-14 14:22 +0000
                Re: Calling conventions (particularly 32-bit ARM) Michael S <already5chosen@yahoo.com> - 2025-01-14 16:41 +0200
                Re: Calling conventions (particularly 32-bit ARM) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-01-14 18:02 +0000
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-14 18:15 +0000
                Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-14 18:19 +0000
                Re: Calling conventions (particularly 32-bit ARM) Terje Mathisen <terje.mathisen@tmsw.no> - 2025-01-14 19:39 +0100
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-14 19:14 +0000
                Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-14 20:01 +0000
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-14 22:05 +0000
                Re: Calling conventions (particularly 32-bit ARM) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-01-14 15:23 -0800
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-14 23:39 +0000
                Re: Calling conventions (particularly 32-bit ARM) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-01-14 16:59 -0800
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-14 23:40 +0000
                Re: Calling conventions (particularly 32-bit ARM) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-01-14 17:11 -0800
                Re: Calling conventions (particularly 32-bit ARM) Michael S <already5chosen@yahoo.com> - 2025-01-15 00:09 +0200
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-14 19:08 +0000
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-14 19:24 +0000
                Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-14 20:31 +0000
                Re: Calling conventions (particularly 32-bit ARM) Michael S <already5chosen@yahoo.com> - 2025-01-14 23:13 +0200
                Re: Calling conventions (particularly 32-bit ARM) mitchalsup@aol.com (MitchAlsup1) - 2025-01-15 00:47 +0000
                Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-14 06:20 +0000
                Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-14 15:05 +0100
                Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-14 14:39 +0000
                Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-14 16:50 +0100
                Re: Calling conventions (particularly 32-bit ARM) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-01-14 15:32 -0800
                Re: Calling conventions (particularly 32-bit ARM) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-01-14 00:14 -0800
              Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-10 14:43 +0000
            Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-10 18:39 +0100
              Re: Calling conventions (particularly 32-bit ARM) scott@slp53.sl.home (Scott Lurndal) - 2025-01-10 18:39 +0000
                Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-12 14:55 +0100
              Re: Calling conventions (particularly 32-bit ARM) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-10 19:19 +0000
                Re: Calling conventions (particularly 32-bit ARM) David Brown <david.brown@hesbynett.no> - 2025-01-12 14:59 +0100

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