Replace fallthrough comments with new SAL_FALLTHROUGH macro

...which (in LIBO_INTERNAL_ONLY) for Clang expands to [[clang::fallthrough]] in
preparation of enabling -Wimplicit-fallthrough.  (This is only relevant for
C++11, as neither C nor old C++ has a way to annotate intended fallthroughs.)

Could use BOOST_FALLTHROUGH instead of introducing our own SAL_FALLTHROUGH, but
that would require adding back in dependencies on boost_headers to many
libraries where we carefully removed any remaining Boost dependencies only
recently.  (At least make SAL_FALLTHROUGH strictly LIBO_INTERNAL_ONLY, so its
future evolution will not have any impact on the stable URE interface.)  C++17
will have a proper [[fallthroug]], eventually removing the need for a macro
altogether.

Change-Id: I342a7610a107db7d7a344ea9cbddfd9714d7e9ca

1 files changed, 1 insertions, 1 deletions

diff --git a/idlc/source/options.cxx b/idlc/source/options.cxx
index e430f1c87f00..23de54ad0728 100644
--- a/idlc/source/options.cxx
+++ b/idlc/source/options.cxx
@@ -153,8 +153,8 @@ bool Options::checkCommandFile (std::vector< std::string > & rArgs, char const *
               }
               break;
           }
+          SAL_FALLTHROUGH;
         default:
-          // quoted white-space fall through
           buffer.push_back(sal::static_int_cast<char>(c));
           break;
         }