4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
6 // The contents of this file are subject to the Fraunhofer FOKUS Public License
7 // Version 1.0 (the "License"); you may not use this file except in compliance
8 // with the License. You may obtain a copy of the License at
9 // http://senf.berlios.de/license.html
11 // The Fraunhofer FOKUS Public License Version 1.0 is based on,
12 // but modifies the Mozilla Public License Version 1.1.
13 // See the full license text for the amendments.
15 // Software distributed under the License is distributed on an "AS IS" basis,
16 // WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
17 // for the specific language governing rights and limitations under the License.
19 // The Original Code is Fraunhofer FOKUS code.
21 // The Initial Developer of the Original Code is Fraunhofer-Gesellschaft e.V.
22 // (registered association), Hansastraße 27 c, 80686 Munich, Germany.
23 // All Rights Reserved.
26 // Stefan Bund <g0dil@berlios.de>
29 \brief IpChecksum inline non-template implementation */
33 #define prefix_ inline
34 //-/////////////////////////////////////////////////////////////////////////////////////////////////
36 prefix_ senf::IpChecksum::IpChecksum()
37 : sum_(0), odd_(false)
40 prefix_ void senf::IpChecksum::feed(boost::uint8_t byte)
42 sum_ += odd_ ? byte : (byte<<8);
46 prefix_ boost::uint16_t senf::IpChecksum::sum()
49 boost::uint32_t v (sum_);
51 v = (v & 0xffff) + (v >> 16);
55 //-/////////////////////////////////////////////////////////////////////////////////////////////////
63 // c-file-style: "senf"
64 // indent-tabs-mode: nil
65 // ispell-local-dictionary: "american"
66 // compile-command: "scons -u test"