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* [Bug c++/94765] New: Floating point type template parameter
@ 2020-04-25 20:06 emmanuel.le-trong@cnrs-orleans.fr
2020-04-25 23:16 ` [Bug c++/94765] " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: emmanuel.le-trong@cnrs-orleans.fr @ 2020-04-25 20:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94765
Bug ID: 94765
Summary: Floating point type template parameter
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: emmanuel.le-trong@cnrs-orleans.fr
Target Milestone: ---
With C++20, non-type template parameters can now be any scalar type[0] which
include floating point types[1]. So this
template <double> struct S {};
should compile. The rules for type equivalence are straightforward[2]
[0] http://eel.is/c++draft/temp#param-6
[1] http://eel.is/c++draft/basic.types#9
[2] http://eel.is/c++draft/temp.type#2
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/94765] Floating point type template parameter 2020-04-25 20:06 [Bug c++/94765] New: Floating point type template parameter emmanuel.le-trong@cnrs-orleans.fr @ 2020-04-25 23:16 ` redi at gcc dot gnu.org 2020-05-07 19:01 ` mpolacek at gcc dot gnu.org 2020-08-03 23:23 ` mpolacek at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2020-04-25 23:16 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94765 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Keywords| |rejects-valid Status|UNCONFIRMED |NEW Last reconfirmed| |2020-04-25 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- https://gcc.gnu.org/projects/cxx-status.html says that P1907R1 is supported since GCC 9, which seems unlikely when P1907R1 wasn't approved until 6 months after GCC 9.1 was released. That page also says that the relevant feature test macro check is __cpp_nontype_template_parameter_class >= 201806, which is wrong because the check for P1907R1 is __cpp_nontype_template_args >= 201911, and GCC defines: #define __cpp_nontype_template_args 201411L I think it's a doc bug, and the feature is not implemented yet. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/94765] Floating point type template parameter 2020-04-25 20:06 [Bug c++/94765] New: Floating point type template parameter emmanuel.le-trong@cnrs-orleans.fr 2020-04-25 23:16 ` [Bug c++/94765] " redi at gcc dot gnu.org @ 2020-05-07 19:01 ` mpolacek at gcc dot gnu.org 2020-08-03 23:23 ` mpolacek at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: mpolacek at gcc dot gnu.org @ 2020-05-07 19:01 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94765 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org Status|NEW |ASSIGNED CC| |mpolacek at gcc dot gnu.org ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/94765] Floating point type template parameter 2020-04-25 20:06 [Bug c++/94765] New: Floating point type template parameter emmanuel.le-trong@cnrs-orleans.fr 2020-04-25 23:16 ` [Bug c++/94765] " redi at gcc dot gnu.org 2020-05-07 19:01 ` mpolacek at gcc dot gnu.org @ 2020-08-03 23:23 ` mpolacek at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: mpolacek at gcc dot gnu.org @ 2020-08-03 23:23 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94765 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Implemented in GCC 11. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-08-03 23:23 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-04-25 20:06 [Bug c++/94765] New: Floating point type template parameter emmanuel.le-trong@cnrs-orleans.fr 2020-04-25 23:16 ` [Bug c++/94765] " redi at gcc dot gnu.org 2020-05-07 19:01 ` mpolacek at gcc dot gnu.org 2020-08-03 23:23 ` mpolacek at gcc dot gnu.org
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