public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug ada/108157] New: [12/13 regression] object subtype doesn't statically match designated subtype @ 2022-12-17 20:00 simon at pushface dot org 2022-12-19 8:04 ` [Bug ada/108157] " rguenth at gcc dot gnu.org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: simon at pushface dot org @ 2022-12-17 20:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108157 Bug ID: 108157 Summary: [12/13 regression] object subtype doesn't statically match designated subtype Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada Assignee: unassigned at gcc dot gnu.org Reporter: simon at pushface dot org CC: dkm at gcc dot gnu.org Target Milestone: --- Created attachment 54118 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54118&action=edit Demonstrator The attached code fails with $ /opt/gcc-12.2.0/bin/gcc -c g-socser.adb g-socser.adb:13:22: error: object subtype must statically match designated subtype The relevant part of g-socser.adb: 9. Connect_Socket 10. (Socket => Client.Socket, 11. Server => Client.Client_Address, 12. Timeout => 0.0, 13. Selector => Listener.Selector'Unchecked_Access, | >>> error: object subtype must statically match designated subtype The relevant part of g-socser.ads: 20. type Connections_Server is tagged limited record 21. -- limited because Selector_Type is limited 22. Selector : aliased Selector_Type; 23. end record; The relevant part of the GNAT standard library GNAT.Sockets is procedure Connect_Socket (Socket : Socket_Type; Server : Sock_Addr_Type; Timeout : Selector_Duration; Selector : access Selector_Type := null; Status : out Selector_Status); and it’s the same Selector_Type all the way. I’ve looked at Annotated Ada Reference Manual (Ada 2022 Draft 34) 4.9.1[1] and I can’t see what the problem is. Note, I don’t know why the code uses 'Unchecked_Access; 'Access gives the same error, 'Unrestricted_Access compiles OK. [1] http://www.ada-auth.org/standards/22aarm/html/AA-4-9-1.html ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/108157] [12/13 regression] object subtype doesn't statically match designated subtype 2022-12-17 20:00 [Bug ada/108157] New: [12/13 regression] object subtype doesn't statically match designated subtype simon at pushface dot org @ 2022-12-19 8:04 ` rguenth at gcc dot gnu.org 2023-05-08 12:26 ` [Bug ada/108157] [12/13/14 " rguenth at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-12-19 8:04 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108157 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |12.3 Priority|P3 |P4 Keywords| |rejects-valid ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/108157] [12/13/14 regression] object subtype doesn't statically match designated subtype 2022-12-17 20:00 [Bug ada/108157] New: [12/13 regression] object subtype doesn't statically match designated subtype simon at pushface dot org 2022-12-19 8:04 ` [Bug ada/108157] " rguenth at gcc dot gnu.org @ 2023-05-08 12:26 ` rguenth at gcc dot gnu.org 2023-05-10 11:07 ` simon at pushface dot org 2023-05-11 12:33 ` ebotcazou at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-05-08 12:26 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108157 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|12.3 |12.4 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 12.3 is being released, retargeting bugs to GCC 12.4. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/108157] [12/13/14 regression] object subtype doesn't statically match designated subtype 2022-12-17 20:00 [Bug ada/108157] New: [12/13 regression] object subtype doesn't statically match designated subtype simon at pushface dot org 2022-12-19 8:04 ` [Bug ada/108157] " rguenth at gcc dot gnu.org 2023-05-08 12:26 ` [Bug ada/108157] [12/13/14 " rguenth at gcc dot gnu.org @ 2023-05-10 11:07 ` simon at pushface dot org 2023-05-11 12:33 ` ebotcazou at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: simon at pushface dot org @ 2023-05-10 11:07 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108157 --- Comment #2 from simon at pushface dot org --- Still present in 13.1.0. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/108157] [12/13/14 regression] object subtype doesn't statically match designated subtype 2022-12-17 20:00 [Bug ada/108157] New: [12/13 regression] object subtype doesn't statically match designated subtype simon at pushface dot org ` (2 preceding siblings ...) 2023-05-10 11:07 ` simon at pushface dot org @ 2023-05-11 12:33 ` ebotcazou at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: ebotcazou at gcc dot gnu.org @ 2023-05-11 12:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108157 Eric Botcazou <ebotcazou at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |WONTFIX CC| |ebotcazou at gcc dot gnu.org --- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- -- Ada 2005 (AI-363): Require static matching when designated -- type has discriminants and a constrained partial view, since -- in general objects of such types are mutable, so we can't -- allow the access value to designate a constrained object -- (because access values must be assumed to designate mutable -- objects when designated type does not impose a constraint). ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2023-05-11 12:33 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-12-17 20:00 [Bug ada/108157] New: [12/13 regression] object subtype doesn't statically match designated subtype simon at pushface dot org 2022-12-19 8:04 ` [Bug ada/108157] " rguenth at gcc dot gnu.org 2023-05-08 12:26 ` [Bug ada/108157] [12/13/14 " rguenth at gcc dot gnu.org 2023-05-10 11:07 ` simon at pushface dot org 2023-05-11 12:33 ` ebotcazou at gcc dot gnu.org
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).