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-/*********************************************************************
- * kd-forest                                                         *
- * Copyright (C) 2014 Tavian Barnes <tavianator@tavianator.com>      *
- *                                                                   *
- * This program is free software. It comes without any warranty, to  *
- * the extent permitted by applicable law. You can redistribute it   *
- * and/or modify it under the terms of the Do What The Fuck You Want *
- * To Public License, Version 2, as published by Sam Hocevar. See    *
- * the COPYING file or http://www.wtfpl.net/ for more details.       *
- *********************************************************************/
-
-#ifndef KD_FOREST_H
-#define KD_FOREST_H
-
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
-
-#define KD_DIMEN 3
-
-// Single node in a k-d tree
-typedef struct kd_node_t {
-  // Node coordinates
-  double coords[KD_DIMEN];
-  // Sub-trees
-  struct kd_node_t *left, *right;
-  // Used to keep track of which sub-tree a node is in during construction
-  bool is_left;
-  // Weak delete support
-  bool removed;
-
-  // Corresponding image position for this node
-  unsigned int x, y;
-} kd_node_t;
-
-kd_node_t *new_kd_node(double coords[KD_DIMEN], unsigned int x, unsigned int y);
-
-// A forest of k-d trees
-typedef struct {
-  // Array of k-d tree roots
-  kd_node_t **roots;
-  // Size and capacity of the roots array
-  unsigned int roots_size, roots_capacity;
-  // The actual size of this tree
-  size_t size;
-  // The size estimate for this tree, counting removed nodes
-  size_t size_est;
-} kd_forest_t;
-
-void kdf_init(kd_forest_t *kdf);
-void kdf_destroy(kd_forest_t *kdf);
-void kdf_insert(kd_forest_t *kdf, kd_node_t *node);
-void kdf_remove(kd_forest_t *kdf, kd_node_t *node);
-kd_node_t *kdf_find_nearest(const kd_forest_t *kdf, const double target[KD_DIMEN]);
-
-#endif // KD_FOREST_H