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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 /* Implementations of hash functions. */

 #include "mozilla/HashFunctions.h"

 #include "mozilla/Types.h"

 #include <string.h>

 namespace mozilla {

 uint32_t

 HashBytes(const void* bytes, size_t length)

 {

   uint32_t hash = 0;

   const char* b = reinterpret_cast<const char*>(bytes);

   /* Walk word by word. */

   size_t i = 0;

   for (; i < length - (length % sizeof(size_t)); i += sizeof(size_t)) {

     /* Do an explicitly unaligned load of the data. */

     size_t data;

     memcpy(&data, b + i, sizeof(size_t));

     hash = AddToHash(hash, data, sizeof(data));

   }

   /* Get the remaining bytes. */

   for (; i < length; i++)

     hash = AddToHash(hash, b[i]);

   return hash;

 }

 } /* namespace mozilla */