Scippy

    SCIP

    Solving Constraint Integer Programs

    Macros | Functions
    reader_cyc.c File Reference

    Detailed Description

    file reader for cycle clustering instances

    Author
    Leon Eifler

    This file implements the reader for the cycle clustering problem. The data is read from a matrix, entries separated by whitespace. The first line in the file has to be of the form "# p nstates ncluster", where nstates is the size of the matrix and ncluster is the number of clusters that should be used. The file has to have the ending ".cyc" to be recognized by the reader.

    Definition in file reader_cyc.c.

    #include "reader_cyc.h"
    #include <assert.h>
    #include <string.h>
    #include <ctype.h>
    #include "probdata_cyc.h"

    Go to the source code of this file.

    Macros

    #define READER_NAME   "cycreader"
     
    #define READER_DESC   "file reader for a .cyc-file with a transition matrix for a cycle clustering problem"
     
    #define READER_EXTENSION   "cyc"
     
    #define COL_MAX_LINELEN   10000
     

    Functions

    static SCIP_Real getNextNumber (char **s)
     
    static SCIP_RETCODE readCyc (SCIP *scip, const char *filename)
     
    static SCIP_DECL_READERCOPY (readerCopyCyc)
     
    static SCIP_DECL_READERREAD (readerReadCyc)
     
    SCIP_RETCODE SCIPincludeReaderCyc (SCIP *scip)
     

    Macro Definition Documentation

    ◆ READER_NAME

    #define READER_NAME   "cycreader"

    Definition at line 43 of file reader_cyc.c.

    ◆ READER_DESC

    #define READER_DESC   "file reader for a .cyc-file with a transition matrix for a cycle clustering problem"

    Definition at line 44 of file reader_cyc.c.

    ◆ READER_EXTENSION

    #define READER_EXTENSION   "cyc"

    Definition at line 45 of file reader_cyc.c.

    ◆ COL_MAX_LINELEN

    #define COL_MAX_LINELEN   10000

    Definition at line 47 of file reader_cyc.c.

    Function Documentation

    ◆ getNextNumber()

    static SCIP_Real getNextNumber ( char **  s)
    		static

    get next number from string s

    Parameters
    spointer to the pointer of the current position in the string

    Definition at line 56 of file reader_cyc.c.

    References SCIP_Real.

    Referenced by readCyc().

    ◆ readCyc()

    static SCIP_RETCODE readCyc ( SCIP *  scip,
    const char *  filename 
    )
    		static

    read LP in Cyc File Format. That means first line is "p edges nbins ncluster". Then a matrix with whitespace-separated entries of size nbins x nbins

    Parameters
    scipSCIP data structure
    filenamename of the input file

    Definition at line 79 of file reader_cyc.c.

    References COL_MAX_LINELEN, getNextNumber(), NULL, SCIP_CALL, SCIP_NOFILE, SCIP_OKAY, SCIP_READERROR, SCIP_Real, SCIPallocMemoryArray, SCIPcreateProbCyc(), SCIPerrorMessage, SCIPfclose(), SCIPfeof(), SCIPfgets(), SCIPfopen(), SCIPfreeMemoryArray, and SCIPinfoMessage().

    Referenced by SCIP_DECL_READERREAD().

    ◆ SCIP_DECL_READERCOPY()

    static SCIP_DECL_READERCOPY ( readerCopyCyc  )
    		static

    copy method for reader plugins (called when SCIP copies plugins)

    Definition at line 188 of file reader_cyc.c.

    References NULL, READER_NAME, SCIP_OKAY, and SCIPreaderGetName().

    ◆ SCIP_DECL_READERREAD()

    static SCIP_DECL_READERREAD ( readerReadCyc  )
    		static

    problem reading method of reader

    Definition at line 199 of file reader_cyc.c.

    References NULL, readCyc(), READER_NAME, SCIP_CALL, SCIP_OKAY, SCIP_SUCCESS, and SCIPreaderGetName().

    ◆ SCIPincludeReaderCyc()

    SCIP_RETCODE SCIPincludeReaderCyc ( SCIP *  scip)

    includes the cyc file reader in SCIP

    Parameters
    scipSCIP data structure

    Definition at line 218 of file reader_cyc.c.

    References FALSE, NULL, READER_DESC, READER_EXTENSION, READER_NAME, SCIP_CALL, SCIP_OKAY, SCIPaddBoolParam(), SCIPaddCharParam(), SCIPaddRealParam(), SCIPincludeReaderBasic(), SCIPsetReaderCopy(), SCIPsetReaderRead(), and TRUE.

    Referenced by SCIPincludeCycPlugins().