[PATCH] D54234: Fix -Wimplicit-fallthrough warning

[Fangrui Song via Phabricator]

MaskRay created this revision.
MaskRay added reviewers: EricWF, ldionne, mclow.lists.
Herald added subscribers: libcxx-commits, christof.

Repository:
  rCXX libc++

https://reviews.llvm.org/D54234

Files:
  include/utility


Index: include/utility
===================================================================
--- include/utility
+++ include/utility
@@ -989,8 +989,10 @@
     {
     case 3:
         __h ^= __data[2] << 16;
+        _LIBCPP_FALLTHROUGH();
     case 2:
         __h ^= __data[1] << 8;
+        _LIBCPP_FALLTHROUGH();
     case 1:
         __h ^= __data[0];
         __h *= __m;


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