diff options
author | Corinna Vinschen <corinna@vinschen.de> | 2020-08-05 22:58:22 +0300 |
---|---|---|
committer | Corinna Vinschen <corinna@vinschen.de> | 2020-08-05 22:58:22 +0300 |
commit | 50ad1980858b1092ebdd8c3dd6ae14d72596eb4d (patch) | |
tree | 1cf5f09b7554eed30007067719022243a440e4e5 /winsup/cygwin/libc/strptime.cc | |
parent | 5898a044c32cf67a1fdc90c8ba48c166d2b11909 (diff) |
Cygwin: Add 'fallthrough' pseudo keyword for switch/case use
This patch has been inspired by the Linux kernel patch
294f69e662d1 compiler_attributes.h: Add 'fallthrough' pseudo keyword for switch/case use
written by Joe Perches <joe AT perches DOT com> based on an idea from
Dan Carpenter <dan DOT carpenter AT oracle DOT com>. The following text
is from the original log message:
Reserve the pseudo keyword 'fallthrough' for the ability to convert the
various case block /* fallthrough */ style comments to appear to be an
actual reserved word with the same gcc case block missing fallthrough
warning capability.
All switch/case blocks now should end in one of:
break;
fallthrough;
goto <label>;
return [expression];
continue;
In C mode, GCC supports the __fallthrough__ attribute since 7.1,
the same time the warning and the comment parsing were introduced.
Cygwin-only: add an explicit -Wimplicit-fallthrough=5 to the build
flags.
Diffstat (limited to 'winsup/cygwin/libc/strptime.cc')
-rw-r--r-- | winsup/cygwin/libc/strptime.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/winsup/cygwin/libc/strptime.cc b/winsup/cygwin/libc/strptime.cc index cbb3e0ce9..3a9bdbb30 100644 --- a/winsup/cygwin/libc/strptime.cc +++ b/winsup/cygwin/libc/strptime.cc @@ -524,7 +524,7 @@ literal: case 'k': /* The hour (24-hour clock representation). */ LEGAL_ALT(0); - /* FALLTHROUGH */ + fallthrough; case 'H': LEGAL_ALT(ALT_O); bp = conv_num(bp, &tm->tm_hour, 0, 23, ALT_DIGITS); @@ -532,7 +532,7 @@ literal: case 'l': /* The hour (12-hour clock representation). */ LEGAL_ALT(0); - /* FALLTHROUGH */ + fallthrough; case 'I': LEGAL_ALT(ALT_O); bp = conv_num(bp, &tm->tm_hour, 1, 12, ALT_DIGITS); |