Scippy

    SCIP

    Solving Constraint Integer Programs

    reader_mst.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 reader_mst.h
    26 * @ingroup FILEREADERS
    27 * @brief file reader for partial primal solutions
    28 * @author Jakob Witzig
    29 *
    30 * This reader handles solutions in two formats:
    31 *
    32 * - <b>SCIP raw format</b>@n
    33 * The format is as follows:@n@n
    34 * line 1: "solution status: <status>"@n
    35 * line 2: "objective value: <value>"@n
    36 * line 3+i: <variable name> <value> (obj: <objective coefficient of variable>)
    37 * @n@n
    38 * Only known values need to be listed.
    39 * @par
    40 * Example:
    41 * @code
    42 * solution status: optimal
    43 * objective value: 1
    44 * x1 1 (obj:1)
    45 * x2 1 (obj:0)
    46 * @endcode
    47 * - <b>XML format</b>@n
    48 * This format is used by CPLEX, for example. For reading we require a section of @p
    49 * <variables>. Each entry in this section consists of@n
    50 * <variable name="<name>" index="<number>" value="<value>"/>
    51 * @par
    52 * Example:
    53 * @code
    54 * <?xml version = "1.0" standalone="yes"?>
    55 * <variables>
    56 * <variable name="x1" index="1" value="1"/>
    57 * <variable name="x2" index="2" value="1"/>
    58 * </variables>
    59 * </xml>
    60 * @endcode
    61 */
    62
    63/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
    64
    65#ifndef __SCIP_READER_MST_H__
    66#define __SCIP_READER_MST_H__
    67
    68#include "scip/def.h"
    69#include "scip/type_retcode.h"
    70#include "scip/type_scip.h"
    71
    72#ifdef __cplusplus
    73extern "C" {
    74#endif
    75
    76/** includes the mst file reader into SCIP
    77 *
    78 * @ingroup FileReaderIncludes
    79 */
    80SCIP_EXPORT
    82 SCIP* scip /**< SCIP data structure */
    83 );
    84
    85#ifdef __cplusplus
    86}
    87#endif
    88
    89#endif
    common defines and data types used in all packages of SCIP
    SCIP_RETCODE SCIPincludeReaderMst(SCIP *scip)
    Definition: reader_mst.c:197
    type definitions for return codes for SCIP methods
    enum SCIP_Retcode SCIP_RETCODE
    Definition: type_retcode.h:63
    type definitions for SCIP's main datastructure