https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126416
Bug ID: 126416
Summary: Weird error message for premature usage of incomplete
type.
Product: gcc
Version: 16.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
Assignee: unassigned at gcc dot gnu.org
Reporter: p.p11 at orange dot fr
CC: dkm at gcc dot gnu.org
Target Milestone: ---
Created attachment 65133
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65133&action=edit
Reproducer.
Reproducer (source code in attached file):
% gcc -c -gnatlf test39.adb
GNAT 16.1.0
1. procedure Test39 is
2.
3. -- Section_13_14_Paragraph_10.c
4. package P1 is
5. function Func_Call return Natural is (99);
6. type T is private;
7. package P2 is
8. type Composite (D : Boolean) is record
9. case D is
10. when False =>
11. Cf : Integer;
12. when True =>
13. Ct : T;
14. end case;
15. end record;
16. end P2;
17. X : Boolean := P2."=" ((False, 1), (False, 1));
|
>>> error: "=" not declared in "P2"
18. Y : Boolean := P2."=" (P2.Composite'(False, 1), (False, 1));
|
>>> error: premature usage of incomplete type "Composite" defined at
line 8
19. private
20. type T is array (1 .. Func_Call) of Integer;
21. end P1;
22.
23. begin
24. null;
25. end Test39;
The compiler issues a meaningful error message in line 18 but not for line 17.
