https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82508
Bug ID: 82508
Summary: Possibly false positive implicit-fallthrough warning
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: andreas.moog at warperbbs dot de
Target Milestone: ---
#include <stdlib.h>
void nothing(int rtn_code)
{
exit(rtn_code);
}
int x = 0;
int ch = 3;
int main() {
switch (ch) {
case 1:
x=1;
nothing(0);
case 2:
x=2;
break;
default:
exit(1);
}
}
This produces a warning:
test-implicit-fallthrough.c:15:9: warning: this statement may fall through
[-Wimplicit-fallthrough=]
nothing();
^~~~~~~~~
test-implicit-fallthrough.c:16:5: note: here
gcc (Debian 20170923-1) 8.0.0 20170923 (experimental) [trunk revision 253114]
