From: Steve Naroff <snaroff@apple.com>
Date: Thu, 17 Jan 2008 00:36:28 +0000 (+0000)
Subject: Declarator::clear(): Null out variable after it's been deleted.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1b4a6227f3ee6fca074d0f521757d1ed4f95ef38;p=clang

Declarator::clear(): Null out variable after it's been deleted.

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

Bug submitted by Eli.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46105 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Parse/DeclSpec.h b/include/clang/Parse/DeclSpec.h
index bf7920fa2d..307959f83a 100644
--- a/include/clang/Parse/DeclSpec.h
+++ b/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/test/Sema/declspec.c b/test/Sema/declspec.c
index d9e02ec42e..05f492d67a 100644
--- a/test/Sema/declspec.c
+++ b/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);
+
+