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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_sol.h
* @brief type definitions for storing primal CIP solutions
* @author Tobias Achterberg
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_TYPE_SOL_H__
#define __SCIP_TYPE_SOL_H__
#ifdef __cplusplus
extern "C" {
#endif
/** origin of solution: where to retrieve uncached elements */
enum SCIP_SolOrigin
{
SCIP_SOLORIGIN_ORIGINAL = 0, /**< solution describes original variables; non-cached elements are zero */
SCIP_SOLORIGIN_ZERO = 1, /**< all non-cached elements in solution are equal to zero */
SCIP_SOLORIGIN_LPSOL = 2, /**< all non-cached elements in solution are equal to current LP solution */
SCIP_SOLORIGIN_NLPSOL = 3, /**< all non-cached elements in solution are equal to current NLP solution */
SCIP_SOLORIGIN_RELAXSOL = 4, /**< all non-cached elements in solution are equal to current relaxation solution */
SCIP_SOLORIGIN_PSEUDOSOL = 5, /**< all non-cached elements in solution are equal to current pseudo solution */
SCIP_SOLORIGIN_PARTIAL = 6, /**< solution describes original solution; all non-cached elements in solution
* are treated as being an arbitrary value in the variable's bounds
*/
SCIP_SOLORIGIN_UNKNOWN = 7 /**< all non-cached elements in solution are unknown; they have to be treated
* as being an arbitrary value in the variable's bounds
*/
};
typedef enum SCIP_SolOrigin SCIP_SOLORIGIN;
typedef struct SCIP_Sol SCIP_SOL; /**< primal CIP solution */
typedef struct SCIP_Viol SCIP_VIOL; /**< maximum violations of problem constraints */
/** type of solution: heuristic or (LP) relaxation solution, or unspecified origin */
enum SCIP_SolType
{
SCIP_SOLTYPE_UNKNOWN = 0, /**< type of solution unspecified (the default) */
SCIP_SOLTYPE_HEUR = 1, /**< solution was found by a heuristic */
SCIP_SOLTYPE_RELAX = 2, /**< solution was found by a relaxation */
SCIP_SOLTYPE_LPRELAX = 3, /**< solution was found by the LP relaxation */
SCIP_SOLTYPE_STRONGBRANCH = 4, /**< solution was found during strong branching */
SCIP_SOLTYPE_PSEUDO = 5 /**< solution originates from a pseudo solution */
};
typedef enum SCIP_SolType SCIP_SOLTYPE;
#ifdef __cplusplus
}
#endif
#endif