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) 2002-2023 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
36 extern "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 };
53 typedef enum SCIP_NodeType SCIP_NODETYPE; /**< type of node */
54 
55 typedef struct SCIP_Probingnode SCIP_PROBINGNODE; /**< data for probing nodes */
56 typedef struct SCIP_Sibling SCIP_SIBLING; /**< data for sibling nodes */
57 typedef struct SCIP_Child SCIP_CHILD; /**< data for child nodes */
58 typedef struct SCIP_Leaf SCIP_LEAF; /**< data for leaf nodes */
59 typedef struct SCIP_Junction SCIP_JUNCTION; /**< data for junction nodes */
60 typedef struct SCIP_Pseudofork SCIP_PSEUDOFORK; /**< data for pseudo fork nodes */
61 typedef struct SCIP_Fork SCIP_FORK; /**< data for fork nodes */
62 typedef struct SCIP_Subroot SCIP_SUBROOT; /**< data for subroot nodes */
63 typedef struct SCIP_Node SCIP_NODE; /**< node data structure */
64 typedef struct SCIP_PendingBdchg SCIP_PENDINGBDCHG; /**< bound change information for pending bound changes */
65 typedef struct SCIP_Tree SCIP_TREE; /**< branch and bound tree */
66 
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif
SCIP_NodeType
Definition: type_tree.h:39
enum SCIP_NodeType SCIP_NODETYPE
Definition: type_tree.h:53