libc: enable -Wimplicit-fallthrough
libc had some -Wimplicit-fallthrough warnings. They all seem to be
benign. We're trying to enable this flag globally, so we need to
annotate these breaks here.
Bug: 112564944
Test: Builds
Change-Id: I5afae694cc4cf26ad1a61e2c8ae91f00cda7c733
diff --git a/libc/stdio/vfwprintf.cpp b/libc/stdio/vfwprintf.cpp
index ae0b62f..1c3b80d 100644
--- a/libc/stdio/vfwprintf.cpp
+++ b/libc/stdio/vfwprintf.cpp
@@ -195,7 +195,7 @@
if (width >= 0) goto rflag;
if (width == INT_MIN) goto overflow;
width = -width;
- /* FALLTHROUGH */
+ __BIONIC_FALLTHROUGH;
case '-':
flags |= LADJUST;
goto rflag;
@@ -294,7 +294,7 @@
goto rflag;
case 'C':
flags |= LONGINT;
- /*FALLTHROUGH*/
+ __BIONIC_FALLTHROUGH;
case 'c':
if (flags & LONGINT)
*(cp = buf) = (wchar_t)GETARG(wint_t);
@@ -305,7 +305,7 @@
break;
case 'D':
flags |= LONGINT;
- /*FALLTHROUGH*/
+ __BIONIC_FALLTHROUGH;
case 'd':
case 'i':
_umax = SARG();
@@ -438,7 +438,7 @@
__fortify_fatal("%%n not allowed on Android");
case 'O':
flags |= LONGINT;
- /*FALLTHROUGH*/
+ __BIONIC_FALLTHROUGH;
case 'o':
_umax = UARG();
base = OCT;
@@ -458,7 +458,7 @@
goto nosign;
case 'S':
flags |= LONGINT;
- /*FALLTHROUGH*/
+ __BIONIC_FALLTHROUGH;
case 's':
if (flags & LONGINT) {
if ((cp = GETARG(wchar_t*)) == nullptr) cp = const_cast<wchar_t*>(L"(null)");
@@ -486,7 +486,7 @@
break;
case 'U':
flags |= LONGINT;
- /*FALLTHROUGH*/
+ __BIONIC_FALLTHROUGH;
case 'u':
_umax = UARG();
base = DEC;