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RedBear-OS/local/recipes/gpu/amdgpu-source/include/linux/union_find.h
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vasilito dc68054305 restore lost packages from 0.2.3 + fix overwritten 0.2.4 files
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2026-06-19 12:39:14 +03:00

42 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_UNION_FIND_H
#define __LINUX_UNION_FIND_H
/**
* union_find.h - union-find data structure implementation
*
* This header provides functions and structures to implement the union-find
* data structure. The union-find data structure is used to manage disjoint
* sets and supports efficient union and find operations.
*
* See Documentation/core-api/union_find.rst for documentation and samples.
*/
struct uf_node {
struct uf_node *parent;
unsigned int rank;
};
/* This macro is used for static initialization of a union-find node. */
#define UF_INIT_NODE(node) {.parent = &node, .rank = 0}
/**
* uf_node_init - Initialize a union-find node
* @node: pointer to the union-find node to be initialized
*
* This function sets the parent of the node to itself and
* initializes its rank to 0.
*/
static inline void uf_node_init(struct uf_node *node)
{
node->parent = node;
node->rank = 0;
}
/* find the root of a node */
struct uf_node *uf_find(struct uf_node *node);
/* Merge two intersecting nodes */
void uf_union(struct uf_node *node1, struct uf_node *node2);
#endif /* __LINUX_UNION_FIND_H */