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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* */
/* This file is part of the program and library */
/* SCIP --- Solving Constraint Integer Programs */
/* */
/* Copyright 2002-2022 Zuse Institute Berlin */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* */
/* You should have received a copy of the Apache-2.0 license */
/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
/* */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**@file type_compr.h
* @ingroup TYPEDEFINITIONS
* @brief type definitions for tree compression
* @author Jakob Witzig
*
* This file defines the interface for tree compression implemented in C.
*
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_TYPE_COMPR_H__
#define __SCIP_TYPE_COMPR_H__
#include "scip/def.h"
#include "scip/type_scip.h"
#include "scip/type_result.h"
#include "scip/type_timing.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct SCIP_Compr SCIP_COMPR; /**< tree compression */
typedef struct SCIP_ComprData SCIP_COMPRDATA; /**< locally defined tree compression data */
/** copy method for compression plugins (called when SCIP copies plugins)
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
*/
#define SCIP_DECL_COMPRCOPY(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr)
/** destructor of tree compression to free user data (called when SCIP is exiting)
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
*/
#define SCIP_DECL_COMPRFREE(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr)
/** initialization method of tree compression (called after problem was transformed)
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
*/
#define SCIP_DECL_COMPRINIT(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr)
/** deinitialization method of tree compression (called before transformed problem is freed)
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
*/
#define SCIP_DECL_COMPREXIT(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr)
/** solving process initialization method of tree compressionc (called when branch and bound process is about to begin)
*
* This method is called when the presolving was finished and the branch and bound process is about to begin.
* The tree compression may use this call to initialize its branch and bound specific data.
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
*/
#define SCIP_DECL_COMPRINITSOL(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr)
/** solving process deinitialization method of tree compression (called before branch and bound process data is freed)
*
* This method is called before the branch and bound process is freed.
* The tree compression should use this call to clean up its branch and bound data.
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
*/
#define SCIP_DECL_COMPREXITSOL(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr)
/** execution method of tree compression technique
*
* Try to compress the current search tree. The method is called in the node processing loop.
*
* input:
* - scip : SCIP main data structure
* - compr : the compression technique itself
* - result : pointer to store the result of the heuristic call
*
* possible return values for *result:
* - SCIP_SUCCESS : the tree could be compressed
* - SCIP_DIDNITFIND : the method could not compress the tree
* - SCIP_DIDNOTRUN : the compression was skipped
*/
#define SCIP_DECL_COMPREXEC(x) SCIP_RETCODE x (SCIP* scip, SCIP_COMPR* compr, SCIP_RESULT* result)
#ifdef __cplusplus
}
#endif
#endif