libcruft-util/hash/adler.cpp

50 lines
1.4 KiB
C++

/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2010-2014 Danny Robson <danny@nerdcruft.net>
*/
#include "./adler.hpp"
#include "./fletcher.hpp"
#include "../debug.hpp"
static constexpr unsigned MODULUS = 65521;
using util::hash::adler32;
///////////////////////////////////////////////////////////////////////////////
adler32::adler32 ():
fletcher (MODULUS, 1, 0)
{ ; }
/////////////////////////////////////////////////////////////////////////////////
//uint32_t
//util::hash::adler32 (const void* restrict _data, size_t _size) noexcept
//{
// return adler32 (
// static_cast<const uint8_t*> (_data),
// static_cast<const uint8_t*> (_data) + _size
// );
//}
//
//
////-----------------------------------------------------------------------------
//uint32_t
//util::hash::adler32 (const uint8_t *restrict first, const uint8_t *restrict last) noexcept
//{
// return fletcher<32, MODULUS, 1, 0> (first, last - first);
//}