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Merge pull request #3503 from gburgessiv/master

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Work around a bug in clang's static analyzer
This commit is contained in:
Jisi Liu 2017-08-24 10:17:55 -07:00 committed by GitHub
commit 98a3734b5a
1 changed files with 4 additions and 1 deletions
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src/google/protobuf/metadata_lite.h
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@ -150,8 +150,11 @@ class InternalMetadataWithArenaBase {
GOOGLE_ATTRIBUTE_NOINLINE T* mutable_unknown_fields_slow() {
Arena* my_arena = arena();
Container* container = Arena::Create<Container>(my_arena);
// Two-step assignment works around a bug in clang's static analyzer:
// https://bugs.llvm.org/show_bug.cgi?id=34198.
ptr_ = container;
ptr_ = reinterpret_cast<void*>(
reinterpret_cast<intptr_t>(container) | kTagContainer);
reinterpret_cast<intptr_t>(ptr_) | kTagContainer);
container->arena = my_arena;
return &(container->unknown_fields);
}