https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115684
Bug ID: 115684
Summary: No warning for pointer and enum field comparison
Product: gcc
Version: 14.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: Hi-Angel at yandex dot ru
Target Milestone: ---
Comparing an enum field with a pointer produces no warnings (while comparing an
int to a pointer produces them). We just had a regression due to this missing
check, such code clearly shouldn't have been compiled in the first place (well,
with Wfatal of course).
# Steps to reproduce (in terms of terminal commands)
λ cat test.c
#include <stdio.h>
int main() {
enum { myEnumField };
int a = 0;
int *b = &a;
if (b == myEnumField)
puts("hey");
}
λ gcc test.c -o a -g3 -O0 -Wall -Wextra -Wsign-conversion
## Expected
A warning, something like:
test.c:16:11: warning: comparison between pointer and enum field
16 | if (b == myEnumField)
## Actual
No warnings being produced
