Merge pull request #289 from rmnblm/patch-1

Add FOSS Compliance to SipHash

Author: 3lvis

Source/Shared/Extensions/Hasher+constantAccrossExecutions.swift

@@ -1,3 +1,23 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+/// This file implements SipHash-2-4 and SipHash-1-3
+/// (https://131002.net/siphash/).
+///
+/// This file is based on the reference C implementation, which was released
+/// to public domain by:
+///
+/// * Jean-Philippe Aumasson <[email protected]>
+/// * Daniel J. Bernstein <[email protected]>
+//===----------------------------------------------------------------------===//
 
 import Foundation