1 files changed, 52 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/wtf/NullPtr.h b/Source/JavaScriptCore/wtf/NullPtr.h
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+++ b/Source/JavaScriptCore/wtf/NullPtr.h
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+/*
+
+Copyright (C) 2010 Apple Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1.  Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+2.  Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#ifndef NullPtr_h
+#define NullPtr_h
+
+// For compilers and standard libraries that do not yet include it, this adds the
+// nullptr_t type and nullptr object. They are defined in the same namespaces they
+// would be in compiler and library that had the support.
+
+#ifndef __has_feature
+    #define __has_feature(feature) 0
+#endif
+
+#if __has_feature(cxx_nullptr) || (defined(_MSC_VER) && _MSC_VER >= 1600)
+
+#define HAVE_NULLPTR 1
+
+#else
+
+namespace std {
+    class nullptr_t { };
+}
+
+extern std::nullptr_t nullptr;
+
+#endif
+
+#endif