Scippy

SCIP

Solving Constraint Integer Programs

type_tree.h
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1/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2/* */
3/* This file is part of the program and library */
4/* SCIP --- Solving Constraint Integer Programs */
5/* */
6/* Copyright (c) 2002-2024 Zuse Institute Berlin (ZIB) */
7/* */
8/* Licensed under the Apache License, Version 2.0 (the "License"); */
9/* you may not use this file except in compliance with the License. */
10/* You may obtain a copy of the License at */
11/* */
12/* http://www.apache.org/licenses/LICENSE-2.0 */
13/* */
14/* Unless required by applicable law or agreed to in writing, software */
15/* distributed under the License is distributed on an "AS IS" BASIS, */
16/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
17/* See the License for the specific language governing permissions and */
18/* limitations under the License. */
19/* */
20/* You should have received a copy of the Apache-2.0 license */
21/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
22/* */
23/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24
25/**@file type_tree.h
26 * @brief type definitions for branch and bound tree
27 * @author Tobias Achterberg
28 */
29
30/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
31
32#ifndef __SCIP_TYPE_TREE_H__
33#define __SCIP_TYPE_TREE_H__
34
35#ifdef __cplusplus
36extern "C" {
37#endif
38
40{
41 SCIP_NODETYPE_FOCUSNODE = 0, /**< the focus node, whose data is stored in the tree data structure */
42 SCIP_NODETYPE_PROBINGNODE = 1, /**< temporary child node of the focus or refocused node used for probing */
43 SCIP_NODETYPE_SIBLING = 2, /**< unsolved sibling of the focus node */
44 SCIP_NODETYPE_CHILD = 3, /**< unsolved child of the focus node */
45 SCIP_NODETYPE_LEAF = 4, /**< unsolved leaf of the tree, stored in the tree's queue */
46 SCIP_NODETYPE_DEADEND = 5, /**< temporary type of focus node, if it was solved completely */
47 SCIP_NODETYPE_JUNCTION = 6, /**< fork without LP solution */
48 SCIP_NODETYPE_PSEUDOFORK = 7, /**< fork without LP solution and added rows and columns */
49 SCIP_NODETYPE_FORK = 8, /**< fork with solved LP and added rows and columns */
50 SCIP_NODETYPE_SUBROOT = 9, /**< fork with solved LP and arbitrarily changed rows and columns */
51 SCIP_NODETYPE_REFOCUSNODE = 10 /**< junction, fork, or subroot that was refocused for domain propagation */
52};
53typedef enum SCIP_NodeType SCIP_NODETYPE; /**< type of node */
54
55typedef struct SCIP_Probingnode SCIP_PROBINGNODE; /**< data for probing nodes */
56typedef struct SCIP_Sibling SCIP_SIBLING; /**< data for sibling nodes */
57typedef struct SCIP_Child SCIP_CHILD; /**< data for child nodes */
58typedef struct SCIP_Leaf SCIP_LEAF; /**< data for leaf nodes */
59typedef struct SCIP_Junction SCIP_JUNCTION; /**< data for junction nodes */
60typedef struct SCIP_Pseudofork SCIP_PSEUDOFORK; /**< data for pseudo fork nodes */
61typedef struct SCIP_Fork SCIP_FORK; /**< data for fork nodes */
62typedef struct SCIP_Subroot SCIP_SUBROOT; /**< data for subroot nodes */
63typedef struct SCIP_Node SCIP_NODE; /**< node data structure */
64typedef struct SCIP_PendingBdchg SCIP_PENDINGBDCHG; /**< bound change information for pending bound changes */
65typedef struct SCIP_Tree SCIP_TREE; /**< branch and bound tree */
66
67#ifdef __cplusplus
68}
69#endif
70
71#endif
enum SCIP_NodeType SCIP_NODETYPE
Definition: type_tree.h:53
SCIP_NodeType
Definition: type_tree.h:40
@ SCIP_NODETYPE_REFOCUSNODE
Definition: type_tree.h:51
@ SCIP_NODETYPE_FORK
Definition: type_tree.h:49
@ SCIP_NODETYPE_CHILD
Definition: type_tree.h:44
@ SCIP_NODETYPE_PROBINGNODE
Definition: type_tree.h:42
@ SCIP_NODETYPE_JUNCTION
Definition: type_tree.h:47
@ SCIP_NODETYPE_PSEUDOFORK
Definition: type_tree.h:48
@ SCIP_NODETYPE_DEADEND
Definition: type_tree.h:46
@ SCIP_NODETYPE_SIBLING
Definition: type_tree.h:43
@ SCIP_NODETYPE_LEAF
Definition: type_tree.h:45
@ SCIP_NODETYPE_SUBROOT
Definition: type_tree.h:50
@ SCIP_NODETYPE_FOCUSNODE
Definition: type_tree.h:41