https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110003
Bug ID: 110003
Summary: Wrong source line listed for unused parameters
Product: gcc
Version: 13.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: modula2
Assignee: gaius at gcc dot gnu.org
Reporter: ad...@tho-otto.de
Target Milestone: ---
When compiling a module with -Wall and a parameter in the in implementation
module is unused, the error message lists the source line of the definition
module instead:
DEFINITION MODULE foo;
PROCEDURE bla(a: INTEGER);
END foo.
IMPLEMENTATION MODULE foo;
PROCEDURE bla(a: INTEGER);
BEGIN
END bla;
END foo.
$ gm2 -c -Wall foo.mod
./foo.def:3:15: warning: In procedure 'bla': unused parameter 'a' in procedure
'bla'
3 | PROCEDURE bla(a: INTEGER);
| ^
That information is rather useless, because an unused parameter can only be
unused in the implementation.
