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From: "ppalka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/98384] [11 Regression] new test case 20_util/to_chars/long_double.cc in r11-6249 fails on powerpc64 BE
Date: Wed, 10 Mar 2021 14:28:25 +0000 [thread overview]
Message-ID: <bug-98384-4-7EVEFscVL4@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98384-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98384
--- Comment #30 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Andreas Schwab from comment #25)
> I don't think this is wrong, as long as DECIMAL_DIG <= 37.
Ah, that's good to know, thanks. So that's yet another non-portable assumption
about printf made by this test... We can't rely on printf outputting a value
exactly if it has more than DECIMAL_DIG significant decimal digits.
On targets where long double == double, I suppose we can just skip this test.
On these targets, the long double to_chars overloads are defined as trivial
wrappers around the double overloads, so it should suffice to test just the
double overloads. This'll take care of FAIL on AIX.
And I think I'll XFAIL the test on Solaris and Darwin for now. (For GCC 12 I
should replace this non-portable test with a separate test for each supported
long double format in the style of float.cc/double.cc.)
next prev parent reply other threads:[~2021-03-10 14:28 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-18 21:39 [Bug libstdc++/98384] New: " seurer at gcc dot gnu.org
2020-12-21 20:28 ` [Bug libstdc++/98384] " ppalka at gcc dot gnu.org
2020-12-22 9:23 ` ro at gcc dot gnu.org
2021-01-05 9:10 ` [Bug libstdc++/98384] [11 Regression] " rguenth at gcc dot gnu.org
2021-01-07 13:04 ` iains at gcc dot gnu.org
2021-01-07 15:42 ` ppalka at gcc dot gnu.org
2021-01-07 16:41 ` iains at gcc dot gnu.org
2021-01-07 17:42 ` cvs-commit at gcc dot gnu.org
2021-01-07 17:55 ` ppalka at gcc dot gnu.org
2021-01-08 9:30 ` ro at CeBiTec dot Uni-Bielefeld.DE
2021-01-12 16:35 ` ppalka at gcc dot gnu.org
2021-01-14 11:13 ` rguenth at gcc dot gnu.org
2021-02-12 15:02 ` jakub at gcc dot gnu.org
2021-02-23 2:49 ` cvs-commit at gcc dot gnu.org
2021-02-23 16:55 ` ppalka at gcc dot gnu.org
2021-02-24 9:58 ` ro at CeBiTec dot Uni-Bielefeld.DE
2021-02-24 15:14 ` ppalka at gcc dot gnu.org
2021-02-24 15:42 ` ro at CeBiTec dot Uni-Bielefeld.DE
2021-02-24 15:48 ` jakub at gcc dot gnu.org
2021-02-24 16:16 ` ppalka at gcc dot gnu.org
2021-02-24 16:26 ` iains at gcc dot gnu.org
2021-02-24 16:45 ` ppalka at gcc dot gnu.org
2021-02-24 17:26 ` cvs-commit at gcc dot gnu.org
2021-02-27 16:17 ` iains at gcc dot gnu.org
2021-02-27 16:49 ` dje at gcc dot gnu.org
2021-03-03 14:28 ` ppalka at gcc dot gnu.org
2021-03-05 2:37 ` dje at gcc dot gnu.org
2021-03-08 17:42 ` ppalka at gcc dot gnu.org
2021-03-08 17:53 ` schwab@linux-m68k.org
2021-03-08 19:27 ` dje at gcc dot gnu.org
2021-03-08 21:09 ` iains at gcc dot gnu.org
2021-03-08 21:24 ` iains at gcc dot gnu.org
2021-03-09 9:55 ` iains at gcc dot gnu.org
2021-03-10 14:28 ` ppalka at gcc dot gnu.org [this message]
2021-03-10 14:51 ` ppalka at gcc dot gnu.org
2021-04-08 15:11 ` cvs-commit at gcc dot gnu.org
2021-04-08 15:22 ` [Bug libstdc++/98384] new test case 20_util/to_chars/long_double.cc in r11-6249 fails ppalka at gcc dot gnu.org
2021-04-08 16:22 ` redi at gcc dot gnu.org
2021-04-27 11:39 ` jakub at gcc dot gnu.org
2021-07-28 7:05 ` rguenth at gcc dot gnu.org
2022-04-21 7:48 ` rguenth at gcc dot gnu.org
2023-05-29 10:03 ` jakub at gcc dot gnu.org
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