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* [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ?
@ 2021-07-28 20:55 simon.marchi at polymtl dot ca
2021-07-29 6:21 ` [Bug libstdc++/101659] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: simon.marchi at polymtl dot ca @ 2021-07-28 20:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101659
Bug ID: 101659
Summary: _GLIBCXX_DEBUG mode for std::optional ?
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: simon.marchi at polymtl dot ca
Target Milestone: ---
There doesn't seem to be a version of std::optional with debug runtime checks
enabled with _GLIBCXX_DEBUG. It seems to me like it would be useful, to catch
"dereferencing" the optional when it doesn't contain a value.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libstdc++/101659] _GLIBCXX_DEBUG mode for std::optional ?
2021-07-28 20:55 [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ? simon.marchi at polymtl dot ca
@ 2021-07-29 6:21 ` rguenth at gcc dot gnu.org
2021-07-29 9:16 ` glisse at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-07-29 6:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101659
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|unknown |12.0
Severity|normal |enhancement
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libstdc++/101659] _GLIBCXX_DEBUG mode for std::optional ?
2021-07-28 20:55 [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ? simon.marchi at polymtl dot ca
2021-07-29 6:21 ` [Bug libstdc++/101659] " rguenth at gcc dot gnu.org
@ 2021-07-29 9:16 ` glisse at gcc dot gnu.org
2021-07-29 12:08 ` simon.marchi at polymtl dot ca
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: glisse at gcc dot gnu.org @ 2021-07-29 9:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101659
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
I already see some "__glibcxx_assert(this->_M_is_engaged());" in the code,
which IIUC should be enabled by _GLIBCXX_ASSERTIONS (and a fortiori by
_GLIBCXX_DEBUG). Did you actually try it?
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libstdc++/101659] _GLIBCXX_DEBUG mode for std::optional ?
2021-07-28 20:55 [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ? simon.marchi at polymtl dot ca
2021-07-29 6:21 ` [Bug libstdc++/101659] " rguenth at gcc dot gnu.org
2021-07-29 9:16 ` glisse at gcc dot gnu.org
@ 2021-07-29 12:08 ` simon.marchi at polymtl dot ca
2021-07-29 12:12 ` redi at gcc dot gnu.org
2021-07-29 12:13 ` redi at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: simon.marchi at polymtl dot ca @ 2021-07-29 12:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101659
Simon Marchi <simon.marchi at polymtl dot ca> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Simon Marchi <simon.marchi at polymtl dot ca> ---
(In reply to Marc Glisse from comment #1)
> I already see some "__glibcxx_assert(this->_M_is_engaged());" in the code,
> which IIUC should be enabled by _GLIBCXX_ASSERTIONS (and a fortiori by
> _GLIBCXX_DEBUG). Did you actually try it?
Arf, yes I did try it. But I now see that I compiled my test.cpp _without_
_GLIBCXX_DEBUG (with the intention of compiling with it). Now that I did it
correctly, I see the assertion triggers.
Thanks, and sorry for wasting everyone's time.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libstdc++/101659] _GLIBCXX_DEBUG mode for std::optional ?
2021-07-28 20:55 [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ? simon.marchi at polymtl dot ca
` (2 preceding siblings ...)
2021-07-29 12:08 ` simon.marchi at polymtl dot ca
@ 2021-07-29 12:12 ` redi at gcc dot gnu.org
2021-07-29 12:13 ` redi at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2021-07-29 12:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101659
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Indeed. Marc added them in r8-711.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libstdc++/101659] _GLIBCXX_DEBUG mode for std::optional ?
2021-07-28 20:55 [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ? simon.marchi at polymtl dot ca
` (3 preceding siblings ...)
2021-07-29 12:12 ` redi at gcc dot gnu.org
@ 2021-07-29 12:13 ` redi at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2021-07-29 12:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101659
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It might be nice to add them to std::experimental::optional too though.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-07-29 12:13 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2021-07-28 20:55 [Bug c++/101659] New: _GLIBCXX_DEBUG mode for std::optional ? simon.marchi at polymtl dot ca
2021-07-29 6:21 ` [Bug libstdc++/101659] " rguenth at gcc dot gnu.org
2021-07-29 9:16 ` glisse at gcc dot gnu.org
2021-07-29 12:08 ` simon.marchi at polymtl dot ca
2021-07-29 12:12 ` redi at gcc dot gnu.org
2021-07-29 12:13 ` redi at gcc dot gnu.org
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