https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81230
Bug ID: 81230
Summary: False -Wimplicit-fallthrough when case has braces
Product: gcc
Version: 7.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
Target Milestone: ---
[forwarded from https://bugs.debian.org/860263]
moving the fall through comment behind the closing brace avoids the warning as
well.
$ gcc-7 -Wextra -o foo foo.c
foo.c: In function 'main':
foo.c:6:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
argc = 0;
~~~~~^~~~
foo.c:9:3: note: here
default:
^~~~~~~
$ cat foo.c
int main(int argc, char **argv)
{
switch (argc)
{
case 1: {
argc = 0;
//fallthrough
}
default:
argc = 1;
break;
}
return 0;
}
Removing the braces for "case 1:" removes the warning.
