libcruft-util/hash/simple.hpp

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/*
* 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 2016, Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_HASH_SIMPLE_HPP
#define __UTIL_HASH_SIMPLE_HPP
#include <cstdint>
#include <utility>
///////////////////////////////////////////////////////////////////////////////
namespace util { namespace hash {
//template <class H, class InputT>
template <class H, typename ...Args>
typename H::digest_t
simple (const void *restrict first, const void *restrict last, Args&&...args) noexcept
{
H h (std::forward<Args> (args)...);
h.update (
static_cast<const uint8_t*restrict> (first),
static_cast<const uint8_t*restrict> (last)
);
h.finish ();
return h.digest ();
}
} }
#endif