Scippy

    SCIP

    Solving Constraint Integer Programs

    type_history.h
    Go to the documentation of this file.
    1/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
    2/* */
    3/* This file is part of the program and library */
    4/* SCIP --- Solving Constraint Integer Programs */
    5/* */
    6/* Copyright (c) 2002-2025 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_history.h
    26 * @ingroup TYPEDEFINITIONS
    27 * @brief type definitions for branching and inference history
    28 * @author Tobias Achterberg
    29 */
    30
    31/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
    32
    33#ifndef __SCIP_TYPE_HISTORY_H__
    34#define __SCIP_TYPE_HISTORY_H__
    35
    36#ifdef __cplusplus
    37extern "C" {
    38#endif
    39
    40/** branching direction for branching on variables */
    42{
    43 SCIP_BRANCHDIR_DOWNWARDS = 0, /**< downwards branching: decreasing upper bound */
    44 SCIP_BRANCHDIR_UPWARDS = 1, /**< upwards branching: increasing lower bound */
    45 SCIP_BRANCHDIR_FIXED = 2, /**< fixed branching: both bounds changed */
    46 SCIP_BRANCHDIR_AUTO = 3 /**< automatic setting for choosing bound changes */
    47};
    48typedef enum SCIP_BranchDir SCIP_BRANCHDIR; /**< branching direction for branching on variables */
    49
    50typedef struct SCIP_History SCIP_HISTORY; /**< branching and inference history information for single variable */
    51
    52/** Value history data structure
    53 *
    54 * branching and inference history informations for single variable dependent on the domain value
    55 *
    56 * - \ref SCIP_VALUEHISTORY "List of all available methods"
    57 */
    59
    60
    61#ifdef __cplusplus
    62}
    63#endif
    64
    65#endif
    SCIP_BranchDir
    Definition: type_history.h:42
    @ SCIP_BRANCHDIR_DOWNWARDS
    Definition: type_history.h:43
    @ SCIP_BRANCHDIR_FIXED
    Definition: type_history.h:45
    @ SCIP_BRANCHDIR_AUTO
    Definition: type_history.h:46
    @ SCIP_BRANCHDIR_UPWARDS
    Definition: type_history.h:44
    enum SCIP_BranchDir SCIP_BRANCHDIR
    Definition: type_history.h:48