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* [Bug c++/94564] New: C++20: Three-way comparison between pointer and nullptr accepted
@ 2020-04-11 19:46 daniel.kruegler at googlemail dot com
2020-04-13 1:16 ` [Bug c++/94564] " mpolacek at gcc dot gnu.org
2021-07-28 3:09 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: daniel.kruegler at googlemail dot com @ 2020-04-11 19:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94564
Bug ID: 94564
Summary: C++20: Three-way comparison between pointer and
nullptr accepted
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: daniel.kruegler at googlemail dot com
Target Milestone: ---
The following program is accepted when compiling against C++20, but should be
rejected, because the C++20 working draft does not support three-way comparison
between pointer and std::nullptr_t (See [expr.spaceship] p6):
Compiler options:
-Wall -Wextra -pedantic -std=c++20
//-------------------
#include <compare>
template<class T, decltype((((T*) 0) <=> nullptr), true) = false>
void test(T*)
{
}
int main()
{
test((int*)(nullptr));
}
//-------------------
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/94564] C++20: Three-way comparison between pointer and nullptr accepted
2020-04-11 19:46 [Bug c++/94564] New: C++20: Three-way comparison between pointer and nullptr accepted daniel.kruegler at googlemail dot com
@ 2020-04-13 1:16 ` mpolacek at gcc dot gnu.org
2021-07-28 3:09 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-04-13 1:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94564
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
Last reconfirmed| |2020-04-13
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/94564] C++20: Three-way comparison between pointer and nullptr accepted
2020-04-11 19:46 [Bug c++/94564] New: C++20: Three-way comparison between pointer and nullptr accepted daniel.kruegler at googlemail dot com
2020-04-13 1:16 ` [Bug c++/94564] " mpolacek at gcc dot gnu.org
@ 2021-07-28 3:09 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-07-28 3:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94564
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.0
Status|NEW |RESOLVED
Depends on| |87699
Resolution|--- |FIXED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This was fixed by the patch which fixed bug 87699 expectly.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87699
[Bug 87699] Implement CWG 1512
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-07-28 3:09 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-04-11 19:46 [Bug c++/94564] New: C++20: Three-way comparison between pointer and nullptr accepted daniel.kruegler at googlemail dot com
2020-04-13 1:16 ` [Bug c++/94564] " mpolacek at gcc dot gnu.org
2021-07-28 3:09 ` pinskia at gcc dot gnu.org
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