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44 lines
1.5 KiB
44 lines
1.5 KiB
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
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#define FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
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#include <memory>
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#include <vector>
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#include "core/fxcrt/unowned_ptr.h"
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class CBC_ReedSolomonGF256;
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class CBC_ReedSolomonGF256Poly final {
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public:
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CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field,
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const std::vector<int32_t>& coefficients);
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~CBC_ReedSolomonGF256Poly();
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int32_t GetCoefficients(int32_t degree) const;
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const std::vector<int32_t>& GetCoefficients() const;
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int32_t GetDegree() const;
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bool IsZero() const;
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std::unique_ptr<CBC_ReedSolomonGF256Poly> AddOrSubtract(
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const CBC_ReedSolomonGF256Poly* other);
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std::unique_ptr<CBC_ReedSolomonGF256Poly> Multiply(
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const CBC_ReedSolomonGF256Poly* other);
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std::unique_ptr<CBC_ReedSolomonGF256Poly> MultiplyByMonomial(
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int32_t degree,
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int32_t coefficient) const;
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std::unique_ptr<CBC_ReedSolomonGF256Poly> Divide(
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const CBC_ReedSolomonGF256Poly* other);
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std::unique_ptr<CBC_ReedSolomonGF256Poly> Clone() const;
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private:
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UnownedPtr<CBC_ReedSolomonGF256> const m_field;
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std::vector<int32_t> m_coefficients;
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};
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#endif // FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
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