/*

 * Copyright (c) Meta Platforms, Inc. and affiliates.

 *

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

 */

// -*- c++ -*-

// I/O code for indexes

#pragma once

namespace faiss {

struct Index;

struct IndexIVF;

struct VectorTransform;

struct Quantizer;

struct IndexBinary;

/* cloning functions */

Index* clone_index(const Index*);

/** Cloner class, useful to override classes with other cloning

 * functions. The cloning function above just calls

 * Cloner::clone_Index. */

struct Cloner {

    virtual VectorTransform* clone_VectorTransform(const VectorTransform*);

    virtual Index* clone_Index(const Index*);

    virtual IndexIVF* clone_IndexIVF(const IndexIVF*);

    virtual ~Cloner() {}

};

Quantizer* clone_Quantizer(const Quantizer* quant);

IndexBinary* clone_binary_index(const IndexBinary* index);

} // namespace faiss