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, 2 insertions, 2 deletions

diff --git a/slideshow/source/engine/animationnodes/basenode.cxx b/slideshow/source/engine/animationnodes/basenode.cxx
index 9b7bae8cca47..a1467a5db0e7 100644
--- a/slideshow/source/engine/animationnodes/basenode.cxx
+++ b/slideshow/source/engine/animationnodes/basenode.cxx
@@ -203,7 +203,7 @@ const int* getStateTransitionTable( sal_Int16 nRestartMode,
         // same value: animations::AnimationRestart::INHERIT:
         OSL_FAIL(
             "getStateTransitionTable(): unexpected case for restart" );
-        // FALLTHROUGH intended
+        SAL_FALLTHROUGH;
     case animations::AnimationRestart::NEVER:
         nRestartValue = 0;
         break;
@@ -223,7 +223,7 @@ const int* getStateTransitionTable( sal_Int16 nRestartMode,
         // same value: animations::AnimationFill::INHERIT:
         OSL_FAIL(
             "getStateTransitionTable(): unexpected case for fill" );
-        // FALLTHROUGH intended
+        SAL_FALLTHROUGH;
     case animations::AnimationFill::REMOVE:
         nFillValue = 0;
         break;