SimilarityL2 (scalar_quantizer/similarities.h)

Provides L2 and inner-product similarity calculators for FAISS vector search.

// Source: https://github.com/facebookresearch/faiss | License: MIT | Copyright Facebook, Inc. and its affiliates
// Provided via justclaw.it.com; keep this notice with the code.
/*
 * 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.
 */

#pragma once

#include <faiss/impl/ScalarQuantizer.h>
#include <faiss/impl/simdlib/simdlib_dispatch.h>
#include <faiss/utils/simd_levels.h>

namespace faiss {

namespace scalar_quantizer {

/*******************************************************************
 * Similarity: gets vector components and computes a similarity wrt. a
 * query vector stored in the object. The data fields just encapsulate
 * an accumulator.
 */

templ

... (truncated -- full source via MCP)