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* [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type
@ 2020-06-29 20:02 bence.kodaj at gmail dot com
2021-07-20 7:46 ` [Bug c++/95986] " bence.kodaj at gmail dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bence.kodaj at gmail dot com @ 2020-06-29 20:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95986
Bug ID: 95986
Summary: Partial specialization of class template is not found
when class template has NTTP of class type
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: bence.kodaj at gmail dot com
Target Milestone: ---
In the code below I would expect the static assertion __not__ to fail, but it
does.
OS: Ubuntu 18.04.
Godbolt: https://godbolt.org/z/absUyx
---------------------------
#include <type_traits>
template< typename, template< auto... > typename >
struct IsInstantationOf : std::false_type {};
template< template< auto... > typename Template, auto... Arg >
struct IsInstantationOf< Template< Arg... >, Template > : std::true_type {};
template< std::size_t N >
struct StrLiteral {
constexpr StrLiteral( const char ( & )[ N ] ) {}
};
template< StrLiteral >
struct Template {};
int main()
{
const auto a = StrLiteral( "a" );
static_assert( IsInstantationOf< Template< a >, Template >::value );
return 0;
}
---------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/95986] Partial specialization of class template is not found when class template has NTTP of class type 2020-06-29 20:02 [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type bence.kodaj at gmail dot com @ 2021-07-20 7:46 ` bence.kodaj at gmail dot com 2022-04-19 17:15 ` bence.kodaj at gmail dot com ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bence.kodaj at gmail dot com @ 2021-07-20 7:46 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95986 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |rejects-valid W E Brown <webrown.cpp at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |webrown.cpp at gmail dot com --- Comment #1 from Bence Kodaj <bence.kodaj at gmail dot com> --- For what it's worth, the bug is still present in gcc 11.1: https://godbolt.org/z/Mrbqnjsrj. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/95986] Partial specialization of class template is not found when class template has NTTP of class type 2020-06-29 20:02 [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type bence.kodaj at gmail dot com 2021-07-20 7:46 ` [Bug c++/95986] " bence.kodaj at gmail dot com @ 2022-04-19 17:15 ` bence.kodaj at gmail dot com 2022-05-11 16:33 ` ppalka at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bence.kodaj at gmail dot com @ 2022-04-19 17:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95986 --- Comment #2 from Bence Kodaj <bence.kodaj at gmail dot com> --- For what it's worth #2: In gcc 11.2, instead of a failed static assertion, we get an internal compiler error. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/95986] Partial specialization of class template is not found when class template has NTTP of class type 2020-06-29 20:02 [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type bence.kodaj at gmail dot com 2021-07-20 7:46 ` [Bug c++/95986] " bence.kodaj at gmail dot com 2022-04-19 17:15 ` bence.kodaj at gmail dot com @ 2022-05-11 16:33 ` ppalka at gcc dot gnu.org 2022-05-11 16:48 ` bence.kodaj at gmail dot com 2022-05-11 16:55 ` ppalka at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: ppalka at gcc dot gnu.org @ 2022-05-11 16:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95986 Patrick Palka <ppalka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |10.3.0, 11.3.0 CC| |ppalka at gcc dot gnu.org Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Keywords| |ice-on-valid-code See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=103672 Last reconfirmed| |2022-05-11 Known to work| |12.1.0 --- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> --- This appears to be fixed in GCC 12 ever since r12-6773-g09845ad7569bac. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/95986] Partial specialization of class template is not found when class template has NTTP of class type 2020-06-29 20:02 [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type bence.kodaj at gmail dot com ` (2 preceding siblings ...) 2022-05-11 16:33 ` ppalka at gcc dot gnu.org @ 2022-05-11 16:48 ` bence.kodaj at gmail dot com 2022-05-11 16:55 ` ppalka at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: bence.kodaj at gmail dot com @ 2022-05-11 16:48 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95986 Bence Kodaj <bence.kodaj at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #4 from Bence Kodaj <bence.kodaj at gmail dot com> --- Fixed in GCC 12.1. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/95986] Partial specialization of class template is not found when class template has NTTP of class type 2020-06-29 20:02 [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type bence.kodaj at gmail dot com ` (3 preceding siblings ...) 2022-05-11 16:48 ` bence.kodaj at gmail dot com @ 2022-05-11 16:55 ` ppalka at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: ppalka at gcc dot gnu.org @ 2022-05-11 16:55 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95986 Patrick Palka <ppalka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |12.0 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-05-11 16:55 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-06-29 20:02 [Bug c++/95986] New: Partial specialization of class template is not found when class template has NTTP of class type bence.kodaj at gmail dot com 2021-07-20 7:46 ` [Bug c++/95986] " bence.kodaj at gmail dot com 2022-04-19 17:15 ` bence.kodaj at gmail dot com 2022-05-11 16:33 ` ppalka at gcc dot gnu.org 2022-05-11 16:48 ` bence.kodaj at gmail dot com 2022-05-11 16:55 ` ppalka at gcc dot gnu.org
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