https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89738
Bug ID: 89738
Summary: Warn for unused macro arguments
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: david.bolvansky at gmail dot com
Target Milestone: ---
I found a nasty bug in my code which was related to unused macro arguments.
#define PARENT_NODE(x) ((id - 1) / 2)
As you can see, the "id" macro argument was unused. The code worked fine, since
id matched id in the code.
Then I reused this macro in the other project and bum, the "id" variable
unfortunely existed too, but now I used the macro as eg. PARENT_NODE(idx).
Any changes for diagnostics for this case?
