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Add NegativeDistanceComputer::distances_batch_4 override #3149

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Add NegativeDistanceComputer::distances_batch_4 override #3149

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17 changes: 17 additions & 0 deletions faiss/IndexHNSW.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,23 @@ struct NegativeDistanceComputer : DistanceComputer {
return -(*basedis)(i);
}

void distances_batch_4(
const idx_t idx0,
const idx_t idx1,
const idx_t idx2,
const idx_t idx3,
float& dis0,
float& dis1,
float& dis2,
float& dis3) override {
basedis->distances_batch_4(
idx0, idx1, idx2, idx3, dis0, dis1, dis2, dis3);
dis0 = -dis0;
dis1 = -dis1;
dis2 = -dis2;
dis3 = -dis3;
}

/// compute distance between two stored vectors
float symmetric_dis(idx_t i, idx_t j) override {
return -basedis->symmetric_dis(i, j);
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