libcruft-util/hash/bsdsum.cpp

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/*
2018-08-04 15:14:06 +10:00
* 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/.
*
* Copyright 2010-2018 Danny Robson <danny@nerdcruft.net>
*/
#include "bsdsum.hpp"
#include "../bitwise.hpp"
using cruft::hash::bsdsum;
///////////////////////////////////////////////////////////////////////////////
typename bsdsum::digest_t
bsdsum::operator() (cruft::view<const uint8_t*> data) const noexcept
{
digest_t accum = 0;
for (const auto i: data)
accum = cruft::rotater (accum, 1) + i;
return accum;
}