[sanitizer] Fix Clang-tidy modernize-use-nullptr warnings in lib/sanitizer_common headers, unify closing inclusion guards. Patch by Eugene Zelenko

llvm-svn: 248816

1 files changed, 3 insertions, 3 deletions

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector_interface.h b/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector_interface.h
index 8cf26e0d552..b6e91a16e25 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector_interface.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector_interface.h
@@ -72,10 +72,10 @@ struct DDCallback {
 struct DDetector {
   static DDetector *Create(const DDFlags *flags);
 
-  virtual DDPhysicalThread* CreatePhysicalThread() { return 0; }
+  virtual DDPhysicalThread* CreatePhysicalThread() { return nullptr; }
   virtual void DestroyPhysicalThread(DDPhysicalThread *pt) {}
 
-  virtual DDLogicalThread* CreateLogicalThread(u64 ctx) { return 0; }
+  virtual DDLogicalThread* CreateLogicalThread(u64 ctx) { return nullptr; }
   virtual void DestroyLogicalThread(DDLogicalThread *lt) {}
 
   virtual void MutexInit(DDCallback *cb, DDMutex *m) {}
@@ -85,7 +85,7 @@ struct DDetector {
   virtual void MutexBeforeUnlock(DDCallback *cb, DDMutex *m, bool wlock) {}
   virtual void MutexDestroy(DDCallback *cb, DDMutex *m) {}
 
-  virtual DDReport *GetReport(DDCallback *cb) { return 0; }
+  virtual DDReport *GetReport(DDCallback *cb) { return nullptr; }
 };
 
 } // namespace __sanitizer