Scippy

    SCIP

    Solving Constraint Integer Programs

    pricer_binpacking.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 pricer_binpacking.h
    26 * @brief Binpacking variable pricer
    27 * @author Timo Berthold
    28 * @author Stefan Heinz
    29 *
    30 * This file implements the variable pricer which check if variables exist with negative reduced cost. See for more
    31 * details \ref BINPACKING_PRICER.
    32 */
    33
    34/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
    35
    36#ifndef __BIN_PRICER_BINPACKING__
    37#define __BIN_PRICER_BINPACKING__
    38
    39#include "scip/scip.h"
    40
    41
    42/** creates the binpacking variable pricer and includes it in SCIP */
    44 SCIP* scip /**< SCIP data structure */
    45 );
    46
    47/** added problem specific data to pricer and activates pricer */
    49 SCIP* scip, /**< SCIP data structure */
    50 SCIP_CONS** conss, /**< set covering constraints for the items */
    51 SCIP_Longint* weights, /**< weight of the items */
    52 int* ids, /**< array of item ids */
    53 int nitems, /**< number of items to be packed */
    54 SCIP_Longint capacity /**< capacity of the bins */
    55 );
    56
    57#endif
    #define SCIP_Longint
    Definition: def.h:141
    SCIP_RETCODE SCIPincludePricerBinpacking(SCIP *scip)
    SCIP_RETCODE SCIPpricerBinpackingActivate(SCIP *scip, SCIP_CONS **conss, SCIP_Longint *weights, int *ids, int nitems, SCIP_Longint capacity)
    SCIP callable library.
    enum SCIP_Retcode SCIP_RETCODE
    Definition: type_retcode.h:63