Program Listing for File sort.h¶
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// Copyright 2017 Kakao Corp. <http://www.kakaocorp.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "hnsw_node.h"
namespace n2 {
class FurtherFirst {
public:
FurtherFirst(HnswNode* node, float distance) : node_(node), distance_(distance) {}
inline float GetDistance() const { return distance_; }
inline HnswNode* GetNode() const { return node_; }
bool operator< (const FurtherFirst& n) const {
return (distance_ < n.GetDistance());
}
private:
HnswNode* node_;
float distance_;
};
class CloserFirst {
public:
CloserFirst(HnswNode* node, float distance) : node_(node), distance_(distance) {}
inline float GetDistance() const { return distance_; }
inline HnswNode* GetNode() const { return node_; }
bool operator< (const CloserFirst& n) const {
return (distance_ > n.GetDistance());
}
private:
HnswNode* node_;
float distance_;
};
} // namespace n2