Add Address Sanitizer support to std::vector

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@208319 91177308-0d34-0410-b5e6-96231b3b80d8

test/support/asan_testing.h

@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ASAN_TESTING_H
+#define ASAN_TESTING_H
+
+#include <__config>
+
+#ifndef _LIBCPP_HAS_NO_ASAN
+extern "C" int __sanitizer_verify_contiguous_container
+     ( const void *beg, const void *mid, const void *end );
+     
+template <typename T, typename Alloc>
+bool is_contiguous_container_asan_correct ( const std::vector<T, Alloc> &c )
+{
+    if ( std::is_same<Alloc, std::allocator<T>>::value && c.data() != NULL)
+        return __sanitizer_verify_contiguous_container (
+            c.data(), c.data() + c.size(), c.data() + c.capacity()) != 0;
+    return true;
+}
+
+#else
+template <typename T, typename Alloc>
+bool is_contiguous_container_asan_correct ( const std::vector<T, Alloc> &c )
+{
+    return true;
+}
+#endif
+ 
+
+#endif  // ASAN_TESTING_H