hash_state.hpp

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//---------------------------------------------------------------------------//
// Copyright (c) 2018-2020 Mikhail Komarov <nemo@nil.foundation>
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
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// The above copyright notice and this permission notice shall be included in all
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//---------------------------------------------------------------------------//
 
#ifndef CRYPTO3_HASH_STATE_HPP
#define CRYPTO3_HASH_STATE_HPP
 
#include <boost/accumulators/framework/accumulator_set.hpp>
#include <boost/accumulators/framework/features.hpp>
 
#include <nil/crypto3/detail/type_traits.hpp>
 
#include <nil/crypto3/hash/accumulators/hash.hpp>
 
#include <nil/crypto3/detail/static_digest.hpp>
 
namespace nil {
    namespace crypto3 {
        template<typename Hash, typename = typename std::enable_if<detail::is_hash<Hash>::value>::type>
        struct accumulator_set
            : public boost::accumulators::accumulator_set<static_digest<Hash::digest_bits>,
                                                          boost::accumulators::features<accumulators::tag::hash<Hash>>,
                                                          std::size_t> {
            typedef Hash hash_type;
        };
    }    // namespace crypto3
}    // namespace nil
 
#endif    // CRYPTO3_BLOCK_STREAM_PREPROCESSOR_HPP