evaluator_from_lagrange.hpp

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// Copyright (c) 2015-2022 Clearmatics Technologies Ltd
//
// SPDX-License-Identifier: LGPL-3.0+
 
#ifndef __ZETH_CORE_EVALUATOR_FROM_LAGRANGE_HPP__
#define __ZETH_CORE_EVALUATOR_FROM_LAGRANGE_HPP__
 
#include "libzeth/core/include_libsnark.hpp"
 
#include <map>
 
namespace libzeth
{
 
template<typename ppT, typename GroupT> class evaluator_from_lagrange
{
private:
    const std::vector<GroupT> &powers;
    libfqfft::evaluation_domain<libff::Fr<ppT>> &domain;
 
public:
    evaluator_from_lagrange(
        const std::vector<GroupT> &powers,
        libfqfft::evaluation_domain<libff::Fr<ppT>> &domain);
 
    GroupT evaluate_from_lagrange_factors(
        const std::map<size_t, libff::Fr<ppT>> &lagrange_factors);
};
 
} // namespace libzeth
 
#include "libzeth/core/evaluator_from_lagrange.tcc"
 
#endif // __ZETH_CORE_EVALUATOR_FROM_LAGRANGE_HPP__