From 1aa1941889e08cf84e9fa392f1697522ab9a7ec6 Mon Sep 17 00:00:00 2001
From: Steve Naroff <snaroff@apple.com>
Date: Thu, 17 Jan 2008 00:36:28 +0000
Subject: Declarator::clear(): Null out variable after it's been deleted.

This avoids a double free (which is good:-)

Bug submitted by Eli.

llvm-svn: 46105
---
 clang/include/clang/Parse/DeclSpec.h | 1 +
 clang/test/Sema/declspec.c           | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/clang/include/clang/Parse/DeclSpec.h b/clang/include/clang/Parse/DeclSpec.h
index bf7920f..307959f 100644
--- a/clang/include/clang/Parse/DeclSpec.h
+++ b/clang/include/clang/Parse/DeclSpec.h
@@ -566,6 +566,7 @@ public:
     }
     DeclTypeInfo.clear();
     delete AttrList;
+    AttrList = 0;
   }
   
   /// mayOmitIdentifier - Return true if the identifier is either optional or
diff --git a/clang/test/Sema/declspec.c b/clang/test/Sema/declspec.c
index d9e02ec..05f492d 100644
--- a/clang/test/Sema/declspec.c
+++ b/clang/test/Sema/declspec.c
@@ -3,3 +3,6 @@ typedef char T[4];
 
 T foo(int n, int m) {  }  // expected-error {{cannot return array or function}}
 
+void foof(const char *, ...) __attribute__((__format__(__printf__, 1, 2))), barf (void);
+
+
-- 
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