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-rw-r--r--test/Analysis/Inputs/system-header-simulator-objc.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/Analysis/Inputs/system-header-simulator-objc.h b/test/Analysis/Inputs/system-header-simulator-objc.h
index a647b37..ecc99e1 100644
--- a/test/Analysis/Inputs/system-header-simulator-objc.h
+++ b/test/Analysis/Inputs/system-header-simulator-objc.h
@@ -1,3 +1,8 @@
+// Like the compiler, the static analyzer treats some functions differently if
+// they come from a system header -- for example, it is assumed that system
+// functions do not arbitrarily free() their parameters, and that some bugs
+// found in system headers cannot be fixed by the user and should be
+// suppressed.
#pragma clang system_header
typedef unsigned int UInt32;
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