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1433 lines
46 KiB
1433 lines
46 KiB
/* glpmps.c (MPS format routines) */
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/***********************************************************************
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* This code is part of GLPK (GNU Linear Programming Kit).
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*
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* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
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* 2009, 2010, 2011, 2013 Andrew Makhorin, Department for Applied
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* Informatics, Moscow Aviation Institute, Moscow, Russia. All rights
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* reserved. E-mail: <mao@gnu.org>.
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*
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* GLPK is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GLPK is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GLPK. If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************/
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#include "env.h"
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#include "misc.h"
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#include "prob.h"
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#define xfprintf glp_format
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/***********************************************************************
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* NAME
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*
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* glp_init_mpscp - initialize MPS format control parameters
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*
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* SYNOPSIS
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*
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* void glp_init_mpscp(glp_mpscp *parm);
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*
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* DESCRIPTION
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*
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* The routine glp_init_mpscp initializes control parameters, which are
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* used by the MPS input/output routines glp_read_mps and glp_write_mps,
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* with default values.
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*
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* Default values of the control parameters are stored in the glp_mpscp
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* structure, which the parameter parm points to. */
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void glp_init_mpscp(glp_mpscp *parm)
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{ parm->blank = '\0';
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parm->obj_name = NULL;
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parm->tol_mps = 1e-12;
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return;
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}
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static void check_parm(const char *func, const glp_mpscp *parm)
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{ /* check control parameters */
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if (!(0x00 <= parm->blank && parm->blank <= 0xFF) ||
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!(parm->blank == '\0' || isprint(parm->blank)))
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xerror("%s: blank = 0x%02X; invalid parameter\n",
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func, parm->blank);
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if (!(parm->obj_name == NULL || strlen(parm->obj_name) <= 255))
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xerror("%s: obj_name = \"%.12s...\"; parameter too long\n",
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func, parm->obj_name);
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if (!(0.0 <= parm->tol_mps && parm->tol_mps < 1.0))
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xerror("%s: tol_mps = %g; invalid parameter\n",
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func, parm->tol_mps);
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return;
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}
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/***********************************************************************
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* NAME
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*
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* glp_read_mps - read problem data in MPS format
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*
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* SYNOPSIS
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*
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* int glp_read_mps(glp_prob *P, int fmt, const glp_mpscp *parm,
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* const char *fname);
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*
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* DESCRIPTION
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*
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* The routine glp_read_mps reads problem data in MPS format from a
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* text file.
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*
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* The parameter fmt specifies the version of MPS format:
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*
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* GLP_MPS_DECK - fixed (ancient) MPS format;
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* GLP_MPS_FILE - free (modern) MPS format.
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*
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* The parameter parm is a pointer to the structure glp_mpscp, which
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* specifies control parameters used by the routine. If parm is NULL,
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* the routine uses default settings.
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*
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* The character string fname specifies a name of the text file to be
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* read.
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*
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* Note that before reading data the current content of the problem
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* object is completely erased with the routine glp_erase_prob.
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*
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* RETURNS
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*
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* If the operation was successful, the routine glp_read_mps returns
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* zero. Otherwise, it prints an error message and returns non-zero. */
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struct csa
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{ /* common storage area */
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glp_prob *P;
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/* pointer to problem object */
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int deck;
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/* MPS format (0 - free, 1 - fixed) */
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const glp_mpscp *parm;
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/* pointer to control parameters */
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const char *fname;
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/* name of input MPS file */
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glp_file *fp;
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/* stream assigned to input MPS file */
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jmp_buf jump;
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/* label for go to in case of error */
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int recno;
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/* current record (card) number */
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int recpos;
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/* current record (card) position */
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int c;
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/* current character */
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int fldno;
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/* current field number */
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char field[255+1];
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/* current field content */
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int w80;
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/* warning 'record must not be longer than 80 chars' issued */
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int wef;
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/* warning 'extra fields detected beyond field 6' issued */
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int obj_row;
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/* objective row number */
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void *work1, *work2, *work3;
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/* working arrays */
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};
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static void error(struct csa *csa, const char *fmt, ...)
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{ /* print error message and terminate processing */
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va_list arg;
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xprintf("%s:%d: ", csa->fname, csa->recno);
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va_start(arg, fmt);
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xvprintf(fmt, arg);
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va_end(arg);
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longjmp(csa->jump, 1);
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/* no return */
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}
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static void warning(struct csa *csa, const char *fmt, ...)
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{ /* print warning message and continue processing */
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va_list arg;
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xprintf("%s:%d: warning: ", csa->fname, csa->recno);
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va_start(arg, fmt);
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xvprintf(fmt, arg);
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va_end(arg);
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return;
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}
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static void read_char(struct csa *csa)
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{ /* read next character */
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int c;
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if (csa->c == '\n')
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csa->recno++, csa->recpos = 0;
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csa->recpos++;
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read: c = glp_getc(csa->fp);
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if (c < 0)
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{ if (glp_ioerr(csa->fp))
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error(csa, "read error - %s\n", get_err_msg());
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else if (csa->c == '\n')
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error(csa, "unexpected end of file\n");
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else
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{ warning(csa, "missing final end of line\n");
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c = '\n';
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}
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}
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else if (c == '\n')
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;
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else if (csa->c == '\r')
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{ c = '\r';
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goto badc;
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}
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else if (csa->deck && c == '\r')
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{ csa->c = '\r';
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goto read;
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}
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else if (c == ' ')
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;
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else if (isspace(c))
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{ if (csa->deck)
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badc: error(csa, "in fixed MPS format white-space character 0x%02"
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"X is not allowed\n", c);
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c = ' ';
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}
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else if (iscntrl(c))
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error(csa, "invalid control character 0x%02X\n", c);
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if (csa->deck && csa->recpos == 81 && c != '\n' && csa->w80 < 1)
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{ warning(csa, "in fixed MPS format record must not be longer th"
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"an 80 characters\n");
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csa->w80++;
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}
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csa->c = c;
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return;
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}
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static int indicator(struct csa *csa, int name)
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{ /* skip comment records and read possible indicator record */
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int ret;
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/* reset current field number */
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csa->fldno = 0;
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loop: /* read the very first character of the next record */
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xassert(csa->c == '\n');
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read_char(csa);
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if (csa->c == ' ' || csa->c == '\n')
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{ /* data record */
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ret = 0;
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}
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else if (csa->c == '*')
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{ /* comment record */
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while (csa->c != '\n')
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read_char(csa);
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goto loop;
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}
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else
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{ /* indicator record */
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int len = 0;
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while (csa->c != ' ' && csa->c != '\n' && len < 12)
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{ csa->field[len++] = (char)csa->c;
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read_char(csa);
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}
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csa->field[len] = '\0';
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if (!(strcmp(csa->field, "NAME") == 0 ||
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strcmp(csa->field, "ROWS") == 0 ||
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strcmp(csa->field, "COLUMNS") == 0 ||
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strcmp(csa->field, "RHS") == 0 ||
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strcmp(csa->field, "RANGES") == 0 ||
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strcmp(csa->field, "BOUNDS") == 0 ||
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strcmp(csa->field, "ENDATA") == 0))
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error(csa, "invalid indicator record\n");
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if (!name)
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{ while (csa->c != '\n')
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read_char(csa);
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}
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ret = 1;
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}
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return ret;
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}
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static void read_field(struct csa *csa)
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{ /* read next field of the current data record */
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csa->fldno++;
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if (csa->deck)
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{ /* fixed MPS format */
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int beg, end, pos;
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/* determine predefined field positions */
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if (csa->fldno == 1)
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beg = 2, end = 3;
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else if (csa->fldno == 2)
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beg = 5, end = 12;
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else if (csa->fldno == 3)
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beg = 15, end = 22;
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else if (csa->fldno == 4)
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beg = 25, end = 36;
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else if (csa->fldno == 5)
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beg = 40, end = 47;
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else if (csa->fldno == 6)
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beg = 50, end = 61;
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else
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xassert(csa != csa);
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/* skip blanks preceding the current field */
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if (csa->c != '\n')
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{ pos = csa->recpos;
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while (csa->recpos < beg)
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{ if (csa->c == ' ')
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;
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else if (csa->c == '\n')
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break;
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else
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error(csa, "in fixed MPS format positions %d-%d must "
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"be blank\n", pos, beg-1);
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read_char(csa);
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}
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}
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/* skip possible comment beginning in the field 3 or 5 */
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if ((csa->fldno == 3 || csa->fldno == 5) && csa->c == '$')
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{ while (csa->c != '\n')
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read_char(csa);
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}
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/* read the current field */
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for (pos = beg; pos <= end; pos++)
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{ if (csa->c == '\n') break;
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csa->field[pos-beg] = (char)csa->c;
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read_char(csa);
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}
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csa->field[pos-beg] = '\0';
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strtrim(csa->field);
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/* skip blanks following the last field */
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if (csa->fldno == 6 && csa->c != '\n')
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{ while (csa->recpos <= 72)
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{ if (csa->c == ' ')
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;
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else if (csa->c == '\n')
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break;
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else
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error(csa, "in fixed MPS format positions 62-72 must "
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"be blank\n");
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read_char(csa);
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}
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while (csa->c != '\n')
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read_char(csa);
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}
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}
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else
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{ /* free MPS format */
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int len;
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/* skip blanks preceding the current field */
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while (csa->c == ' ')
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read_char(csa);
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/* skip possible comment */
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if (csa->c == '$')
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{ while (csa->c != '\n')
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read_char(csa);
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}
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/* read the current field */
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len = 0;
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while (!(csa->c == ' ' || csa->c == '\n'))
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{ if (len == 255)
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error(csa, "length of field %d exceeds 255 characters\n",
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csa->fldno++);
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csa->field[len++] = (char)csa->c;
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read_char(csa);
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}
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csa->field[len] = '\0';
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/* skip anything following the last field (any extra fields
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are considered to be comments) */
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if (csa->fldno == 6)
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{ while (csa->c == ' ')
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read_char(csa);
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if (csa->c != '$' && csa->c != '\n' && csa->wef < 1)
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{ warning(csa, "some extra field(s) detected beyond field "
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"6; field(s) ignored\n");
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csa->wef++;
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}
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while (csa->c != '\n')
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read_char(csa);
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}
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}
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return;
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}
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static void patch_name(struct csa *csa, char *name)
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{ /* process embedded blanks in symbolic name */
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int blank = csa->parm->blank;
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if (blank == '\0')
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{ /* remove emedded blanks */
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strspx(name);
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}
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else
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{ /* replace embedded blanks by specified character */
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for (; *name != '\0'; name++)
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if (*name == ' ') *name = (char)blank;
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}
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return;
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}
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static double read_number(struct csa *csa)
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{ /* read next field and convert it to floating-point number */
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double x;
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char *s;
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/* read next field */
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read_field(csa);
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xassert(csa->fldno == 4 || csa->fldno == 6);
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if (csa->field[0] == '\0')
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error(csa, "missing numeric value in field %d\n", csa->fldno);
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/* skip initial spaces of the field */
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for (s = csa->field; *s == ' '; s++);
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/* perform conversion */
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if (str2num(s, &x) != 0)
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error(csa, "cannot convert '%s' to floating-point number\n",
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s);
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return x;
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}
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static void skip_field(struct csa *csa)
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{ /* read and skip next field (assumed to be blank) */
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read_field(csa);
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if (csa->field[0] != '\0')
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error(csa, "field %d must be blank\n", csa->fldno);
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return;
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}
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static void read_name(struct csa *csa)
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{ /* read NAME indicator record */
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if (!(indicator(csa, 1) && strcmp(csa->field, "NAME") == 0))
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error(csa, "missing NAME indicator record\n");
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/* this indicator record looks like a data record; simulate that
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fields 1 and 2 were read */
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csa->fldno = 2;
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/* field 3: model name */
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read_field(csa), patch_name(csa, csa->field);
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if (csa->field[0] == '\0')
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warning(csa, "missing model name in field 3\n");
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else
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glp_set_prob_name(csa->P, csa->field);
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/* skip anything following field 3 */
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while (csa->c != '\n')
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read_char(csa);
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return;
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}
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static void read_rows(struct csa *csa)
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{ /* read ROWS section */
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int i, type;
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loop: if (indicator(csa, 0)) goto done;
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/* field 1: row type */
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read_field(csa), strspx(csa->field);
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if (strcmp(csa->field, "N") == 0)
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type = GLP_FR;
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else if (strcmp(csa->field, "G") == 0)
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type = GLP_LO;
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else if (strcmp(csa->field, "L") == 0)
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type = GLP_UP;
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else if (strcmp(csa->field, "E") == 0)
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type = GLP_FX;
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else if (csa->field[0] == '\0')
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error(csa, "missing row type in field 1\n");
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else
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error(csa, "invalid row type in field 1\n");
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/* field 2: row name */
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read_field(csa), patch_name(csa, csa->field);
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if (csa->field[0] == '\0')
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error(csa, "missing row name in field 2\n");
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if (glp_find_row(csa->P, csa->field) != 0)
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error(csa, "row '%s' multiply specified\n", csa->field);
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i = glp_add_rows(csa->P, 1);
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glp_set_row_name(csa->P, i, csa->field);
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glp_set_row_bnds(csa->P, i, type, 0.0, 0.0);
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/* fields 3, 4, 5, and 6 must be blank */
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skip_field(csa);
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skip_field(csa);
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skip_field(csa);
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skip_field(csa);
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goto loop;
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done: return;
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}
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|
|
|
static void read_columns(struct csa *csa)
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|
{ /* read COLUMNS section */
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int i, j, f, len, kind = GLP_CV, *ind;
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double aij, *val;
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char name[255+1], *flag;
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|
/* allocate working arrays */
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csa->work1 = ind = xcalloc(1+csa->P->m, sizeof(int));
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csa->work2 = val = xcalloc(1+csa->P->m, sizeof(double));
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csa->work3 = flag = xcalloc(1+csa->P->m, sizeof(char));
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memset(&flag[1], 0, csa->P->m);
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/* no current column exists */
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j = 0, len = 0;
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loop: if (indicator(csa, 0)) goto done;
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/* field 1 must be blank */
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if (csa->deck)
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{ read_field(csa);
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if (csa->field[0] != '\0')
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error(csa, "field 1 must be blank\n");
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}
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else
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csa->fldno++;
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/* field 2: column or kind name */
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read_field(csa), patch_name(csa, csa->field);
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strcpy(name, csa->field);
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/* field 3: row name or keyword 'MARKER' */
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read_field(csa), patch_name(csa, csa->field);
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if (strcmp(csa->field, "'MARKER'") == 0)
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{ /* process kind data record */
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/* field 4 must be blank */
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if (csa->deck)
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{ read_field(csa);
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if (csa->field[0] != '\0')
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error(csa, "field 4 must be blank\n");
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}
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else
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csa->fldno++;
|
|
/* field 5: keyword 'INTORG' or 'INTEND' */
|
|
read_field(csa), patch_name(csa, csa->field);
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|
if (strcmp(csa->field, "'INTORG'") == 0)
|
|
kind = GLP_IV;
|
|
else if (strcmp(csa->field, "'INTEND'") == 0)
|
|
kind = GLP_CV;
|
|
else if (csa->field[0] == '\0')
|
|
error(csa, "missing keyword in field 5\n");
|
|
else
|
|
error(csa, "invalid keyword in field 5\n");
|
|
/* field 6 must be blank */
|
|
skip_field(csa);
|
|
goto loop;
|
|
}
|
|
/* process column name specified in field 2 */
|
|
if (name[0] == '\0')
|
|
{ /* the same column as in previous data record */
|
|
if (j == 0)
|
|
error(csa, "missing column name in field 2\n");
|
|
}
|
|
else if (j != 0 && strcmp(name, csa->P->col[j]->name) == 0)
|
|
{ /* the same column as in previous data record */
|
|
xassert(j != 0);
|
|
}
|
|
else
|
|
{ /* store the current column */
|
|
if (j != 0)
|
|
{ glp_set_mat_col(csa->P, j, len, ind, val);
|
|
while (len > 0) flag[ind[len--]] = 0;
|
|
}
|
|
/* create new column */
|
|
if (glp_find_col(csa->P, name) != 0)
|
|
error(csa, "column '%s' multiply specified\n", name);
|
|
j = glp_add_cols(csa->P, 1);
|
|
glp_set_col_name(csa->P, j, name);
|
|
glp_set_col_kind(csa->P, j, kind);
|
|
if (kind == GLP_CV)
|
|
glp_set_col_bnds(csa->P, j, GLP_LO, 0.0, 0.0);
|
|
else if (kind == GLP_IV)
|
|
glp_set_col_bnds(csa->P, j, GLP_DB, 0.0, 1.0);
|
|
else
|
|
xassert(kind != kind);
|
|
}
|
|
/* process fields 3-4 and 5-6 */
|
|
for (f = 3; f <= 5; f += 2)
|
|
{ /* field 3 or 5: row name */
|
|
if (f == 3)
|
|
{ if (csa->field[0] == '\0')
|
|
error(csa, "missing row name in field 3\n");
|
|
}
|
|
else
|
|
{ read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
{ /* if field 5 is blank, field 6 also must be blank */
|
|
skip_field(csa);
|
|
continue;
|
|
}
|
|
}
|
|
i = glp_find_row(csa->P, csa->field);
|
|
if (i == 0)
|
|
error(csa, "row '%s' not found\n", csa->field);
|
|
if (flag[i])
|
|
error(csa, "duplicate coefficient in row '%s'\n",
|
|
csa->field);
|
|
/* field 4 or 6: coefficient value */
|
|
aij = read_number(csa);
|
|
if (fabs(aij) < csa->parm->tol_mps) aij = 0.0;
|
|
len++, ind[len] = i, val[len] = aij, flag[i] = 1;
|
|
}
|
|
goto loop;
|
|
done: /* store the last column */
|
|
if (j != 0)
|
|
glp_set_mat_col(csa->P, j, len, ind, val);
|
|
/* free working arrays */
|
|
xfree(ind);
|
|
xfree(val);
|
|
xfree(flag);
|
|
csa->work1 = csa->work2 = csa->work3 = NULL;
|
|
return;
|
|
}
|
|
|
|
static void read_rhs(struct csa *csa)
|
|
{ /* read RHS section */
|
|
int i, f, v, type;
|
|
double rhs;
|
|
char name[255+1], *flag;
|
|
/* allocate working array */
|
|
csa->work3 = flag = xcalloc(1+csa->P->m, sizeof(char));
|
|
memset(&flag[1], 0, csa->P->m);
|
|
/* no current RHS vector exists */
|
|
v = 0;
|
|
loop: if (indicator(csa, 0)) goto done;
|
|
/* field 1 must be blank */
|
|
if (csa->deck)
|
|
{ read_field(csa);
|
|
if (csa->field[0] != '\0')
|
|
error(csa, "field 1 must be blank\n");
|
|
}
|
|
else
|
|
csa->fldno++;
|
|
/* field 2: RHS vector name */
|
|
read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
{ /* the same RHS vector as in previous data record */
|
|
if (v == 0)
|
|
{ warning(csa, "missing RHS vector name in field 2\n");
|
|
goto blnk;
|
|
}
|
|
}
|
|
else if (v != 0 && strcmp(csa->field, name) == 0)
|
|
{ /* the same RHS vector as in previous data record */
|
|
xassert(v != 0);
|
|
}
|
|
else
|
|
blnk: { /* new RHS vector */
|
|
if (v != 0)
|
|
error(csa, "multiple RHS vectors not supported\n");
|
|
v++;
|
|
strcpy(name, csa->field);
|
|
}
|
|
/* process fields 3-4 and 5-6 */
|
|
for (f = 3; f <= 5; f += 2)
|
|
{ /* field 3 or 5: row name */
|
|
read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
{ if (f == 3)
|
|
error(csa, "missing row name in field 3\n");
|
|
else
|
|
{ /* if field 5 is blank, field 6 also must be blank */
|
|
skip_field(csa);
|
|
continue;
|
|
}
|
|
}
|
|
i = glp_find_row(csa->P, csa->field);
|
|
if (i == 0)
|
|
error(csa, "row '%s' not found\n", csa->field);
|
|
if (flag[i])
|
|
error(csa, "duplicate right-hand side for row '%s'\n",
|
|
csa->field);
|
|
/* field 4 or 6: right-hand side value */
|
|
rhs = read_number(csa);
|
|
if (fabs(rhs) < csa->parm->tol_mps) rhs = 0.0;
|
|
type = csa->P->row[i]->type;
|
|
if (type == GLP_FR)
|
|
{ if (i == csa->obj_row)
|
|
glp_set_obj_coef(csa->P, 0, rhs);
|
|
else if (rhs != 0.0)
|
|
warning(csa, "non-zero right-hand side for free row '%s'"
|
|
" ignored\n", csa->P->row[i]->name);
|
|
}
|
|
else
|
|
glp_set_row_bnds(csa->P, i, type, rhs, rhs);
|
|
flag[i] = 1;
|
|
}
|
|
goto loop;
|
|
done: /* free working array */
|
|
xfree(flag);
|
|
csa->work3 = NULL;
|
|
return;
|
|
}
|
|
|
|
static void read_ranges(struct csa *csa)
|
|
{ /* read RANGES section */
|
|
int i, f, v, type;
|
|
double rhs, rng;
|
|
char name[255+1], *flag;
|
|
/* allocate working array */
|
|
csa->work3 = flag = xcalloc(1+csa->P->m, sizeof(char));
|
|
memset(&flag[1], 0, csa->P->m);
|
|
/* no current RANGES vector exists */
|
|
v = 0;
|
|
loop: if (indicator(csa, 0)) goto done;
|
|
/* field 1 must be blank */
|
|
if (csa->deck)
|
|
{ read_field(csa);
|
|
if (csa->field[0] != '\0')
|
|
error(csa, "field 1 must be blank\n");
|
|
}
|
|
else
|
|
csa->fldno++;
|
|
/* field 2: RANGES vector name */
|
|
read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
{ /* the same RANGES vector as in previous data record */
|
|
if (v == 0)
|
|
{ warning(csa, "missing RANGES vector name in field 2\n");
|
|
goto blnk;
|
|
}
|
|
}
|
|
else if (v != 0 && strcmp(csa->field, name) == 0)
|
|
{ /* the same RANGES vector as in previous data record */
|
|
xassert(v != 0);
|
|
}
|
|
else
|
|
blnk: { /* new RANGES vector */
|
|
if (v != 0)
|
|
error(csa, "multiple RANGES vectors not supported\n");
|
|
v++;
|
|
strcpy(name, csa->field);
|
|
}
|
|
/* process fields 3-4 and 5-6 */
|
|
for (f = 3; f <= 5; f += 2)
|
|
{ /* field 3 or 5: row name */
|
|
read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
{ if (f == 3)
|
|
error(csa, "missing row name in field 3\n");
|
|
else
|
|
{ /* if field 5 is blank, field 6 also must be blank */
|
|
skip_field(csa);
|
|
continue;
|
|
}
|
|
}
|
|
i = glp_find_row(csa->P, csa->field);
|
|
if (i == 0)
|
|
error(csa, "row '%s' not found\n", csa->field);
|
|
if (flag[i])
|
|
error(csa, "duplicate range for row '%s'\n", csa->field);
|
|
/* field 4 or 6: range value */
|
|
rng = read_number(csa);
|
|
if (fabs(rng) < csa->parm->tol_mps) rng = 0.0;
|
|
type = csa->P->row[i]->type;
|
|
if (type == GLP_FR)
|
|
warning(csa, "range for free row '%s' ignored\n",
|
|
csa->P->row[i]->name);
|
|
else if (type == GLP_LO)
|
|
{ rhs = csa->P->row[i]->lb;
|
|
glp_set_row_bnds(csa->P, i, rhs == 0.0 ? GLP_FX : GLP_DB,
|
|
rhs, rhs + fabs(rng));
|
|
}
|
|
else if (type == GLP_UP)
|
|
{ rhs = csa->P->row[i]->ub;
|
|
glp_set_row_bnds(csa->P, i, rhs == 0.0 ? GLP_FX : GLP_DB,
|
|
rhs - fabs(rng), rhs);
|
|
}
|
|
else if (type == GLP_FX)
|
|
{ rhs = csa->P->row[i]->lb;
|
|
if (rng > 0.0)
|
|
glp_set_row_bnds(csa->P, i, GLP_DB, rhs, rhs + rng);
|
|
else if (rng < 0.0)
|
|
glp_set_row_bnds(csa->P, i, GLP_DB, rhs + rng, rhs);
|
|
}
|
|
else
|
|
xassert(type != type);
|
|
flag[i] = 1;
|
|
}
|
|
goto loop;
|
|
done: /* free working array */
|
|
xfree(flag);
|
|
csa->work3 = NULL;
|
|
return;
|
|
}
|
|
|
|
static void read_bounds(struct csa *csa)
|
|
{ /* read BOUNDS section */
|
|
GLPCOL *col;
|
|
int j, v, mask, data;
|
|
double bnd, lb, ub;
|
|
char type[2+1], name[255+1], *flag;
|
|
/* allocate working array */
|
|
csa->work3 = flag = xcalloc(1+csa->P->n, sizeof(char));
|
|
memset(&flag[1], 0, csa->P->n);
|
|
/* no current BOUNDS vector exists */
|
|
v = 0;
|
|
loop: if (indicator(csa, 0)) goto done;
|
|
/* field 1: bound type */
|
|
read_field(csa);
|
|
if (strcmp(csa->field, "LO") == 0)
|
|
mask = 0x01, data = 1;
|
|
else if (strcmp(csa->field, "UP") == 0)
|
|
mask = 0x10, data = 1;
|
|
else if (strcmp(csa->field, "FX") == 0)
|
|
mask = 0x11, data = 1;
|
|
else if (strcmp(csa->field, "FR") == 0)
|
|
mask = 0x11, data = 0;
|
|
else if (strcmp(csa->field, "MI") == 0)
|
|
mask = 0x01, data = 0;
|
|
else if (strcmp(csa->field, "PL") == 0)
|
|
mask = 0x10, data = 0;
|
|
else if (strcmp(csa->field, "LI") == 0)
|
|
mask = 0x01, data = 1;
|
|
else if (strcmp(csa->field, "UI") == 0)
|
|
mask = 0x10, data = 1;
|
|
else if (strcmp(csa->field, "BV") == 0)
|
|
mask = 0x11, data = 0;
|
|
else if (csa->field[0] == '\0')
|
|
error(csa, "missing bound type in field 1\n");
|
|
else
|
|
error(csa, "invalid bound type in field 1\n");
|
|
strcpy(type, csa->field);
|
|
/* field 2: BOUNDS vector name */
|
|
read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
{ /* the same BOUNDS vector as in previous data record */
|
|
if (v == 0)
|
|
{ warning(csa, "missing BOUNDS vector name in field 2\n");
|
|
goto blnk;
|
|
}
|
|
}
|
|
else if (v != 0 && strcmp(csa->field, name) == 0)
|
|
{ /* the same BOUNDS vector as in previous data record */
|
|
xassert(v != 0);
|
|
}
|
|
else
|
|
blnk: { /* new BOUNDS vector */
|
|
if (v != 0)
|
|
error(csa, "multiple BOUNDS vectors not supported\n");
|
|
v++;
|
|
strcpy(name, csa->field);
|
|
}
|
|
/* field 3: column name */
|
|
read_field(csa), patch_name(csa, csa->field);
|
|
if (csa->field[0] == '\0')
|
|
error(csa, "missing column name in field 3\n");
|
|
j = glp_find_col(csa->P, csa->field);
|
|
if (j == 0)
|
|
error(csa, "column '%s' not found\n", csa->field);
|
|
if ((flag[j] & mask) == 0x01)
|
|
error(csa, "duplicate lower bound for column '%s'\n",
|
|
csa->field);
|
|
if ((flag[j] & mask) == 0x10)
|
|
error(csa, "duplicate upper bound for column '%s'\n",
|
|
csa->field);
|
|
xassert((flag[j] & mask) == 0x00);
|
|
/* field 4: bound value */
|
|
if (data)
|
|
{ bnd = read_number(csa);
|
|
if (fabs(bnd) < csa->parm->tol_mps) bnd = 0.0;
|
|
}
|
|
else
|
|
read_field(csa), bnd = 0.0;
|
|
/* get current column bounds */
|
|
col = csa->P->col[j];
|
|
if (col->type == GLP_FR)
|
|
lb = -DBL_MAX, ub = +DBL_MAX;
|
|
else if (col->type == GLP_LO)
|
|
lb = col->lb, ub = +DBL_MAX;
|
|
else if (col->type == GLP_UP)
|
|
lb = -DBL_MAX, ub = col->ub;
|
|
else if (col->type == GLP_DB)
|
|
lb = col->lb, ub = col->ub;
|
|
else if (col->type == GLP_FX)
|
|
lb = ub = col->lb;
|
|
else
|
|
xassert(col != col);
|
|
/* change column bounds */
|
|
if (strcmp(type, "LO") == 0)
|
|
lb = bnd;
|
|
else if (strcmp(type, "UP") == 0)
|
|
ub = bnd;
|
|
else if (strcmp(type, "FX") == 0)
|
|
lb = ub = bnd;
|
|
else if (strcmp(type, "FR") == 0)
|
|
lb = -DBL_MAX, ub = +DBL_MAX;
|
|
else if (strcmp(type, "MI") == 0)
|
|
lb = -DBL_MAX;
|
|
else if (strcmp(type, "PL") == 0)
|
|
ub = +DBL_MAX;
|
|
else if (strcmp(type, "LI") == 0)
|
|
{ glp_set_col_kind(csa->P, j, GLP_IV);
|
|
lb = ceil(bnd);
|
|
#if 1 /* 16/VII-2013 */
|
|
/* if column upper bound has not been explicitly specified,
|
|
take it as +inf */
|
|
if (!(flag[j] & 0x10))
|
|
ub = +DBL_MAX;
|
|
#endif
|
|
}
|
|
else if (strcmp(type, "UI") == 0)
|
|
{ glp_set_col_kind(csa->P, j, GLP_IV);
|
|
ub = floor(bnd);
|
|
}
|
|
else if (strcmp(type, "BV") == 0)
|
|
{ glp_set_col_kind(csa->P, j, GLP_IV);
|
|
lb = 0.0, ub = 1.0;
|
|
}
|
|
else
|
|
xassert(type != type);
|
|
/* set new column bounds */
|
|
if (lb == -DBL_MAX && ub == +DBL_MAX)
|
|
glp_set_col_bnds(csa->P, j, GLP_FR, lb, ub);
|
|
else if (ub == +DBL_MAX)
|
|
glp_set_col_bnds(csa->P, j, GLP_LO, lb, ub);
|
|
else if (lb == -DBL_MAX)
|
|
glp_set_col_bnds(csa->P, j, GLP_UP, lb, ub);
|
|
else if (lb != ub)
|
|
glp_set_col_bnds(csa->P, j, GLP_DB, lb, ub);
|
|
else
|
|
glp_set_col_bnds(csa->P, j, GLP_FX, lb, ub);
|
|
flag[j] |= (char)mask;
|
|
/* fields 5 and 6 must be blank */
|
|
skip_field(csa);
|
|
skip_field(csa);
|
|
goto loop;
|
|
done: /* free working array */
|
|
xfree(flag);
|
|
csa->work3 = NULL;
|
|
return;
|
|
}
|
|
|
|
int glp_read_mps(glp_prob *P, int fmt, const glp_mpscp *parm,
|
|
const char *fname)
|
|
{ /* read problem data in MPS format */
|
|
glp_mpscp _parm;
|
|
struct csa _csa, *csa = &_csa;
|
|
int ret;
|
|
xprintf("Reading problem data from '%s'...\n", fname);
|
|
if (!(fmt == GLP_MPS_DECK || fmt == GLP_MPS_FILE))
|
|
xerror("glp_read_mps: fmt = %d; invalid parameter\n", fmt);
|
|
if (parm == NULL)
|
|
glp_init_mpscp(&_parm), parm = &_parm;
|
|
/* check control parameters */
|
|
check_parm("glp_read_mps", parm);
|
|
/* initialize common storage area */
|
|
csa->P = P;
|
|
csa->deck = (fmt == GLP_MPS_DECK);
|
|
csa->parm = parm;
|
|
csa->fname = fname;
|
|
csa->fp = NULL;
|
|
if (setjmp(csa->jump))
|
|
{ ret = 1;
|
|
goto done;
|
|
}
|
|
csa->recno = csa->recpos = 0;
|
|
csa->c = '\n';
|
|
csa->fldno = 0;
|
|
csa->field[0] = '\0';
|
|
csa->w80 = csa->wef = 0;
|
|
csa->obj_row = 0;
|
|
csa->work1 = csa->work2 = csa->work3 = NULL;
|
|
/* erase problem object */
|
|
glp_erase_prob(P);
|
|
glp_create_index(P);
|
|
/* open input MPS file */
|
|
csa->fp = glp_open(fname, "r");
|
|
if (csa->fp == NULL)
|
|
{ xprintf("Unable to open '%s' - %s\n", fname, get_err_msg());
|
|
ret = 1;
|
|
goto done;
|
|
}
|
|
/* read NAME indicator record */
|
|
read_name(csa);
|
|
if (P->name != NULL)
|
|
xprintf("Problem: %s\n", P->name);
|
|
/* read ROWS section */
|
|
if (!(indicator(csa, 0) && strcmp(csa->field, "ROWS") == 0))
|
|
error(csa, "missing ROWS indicator record\n");
|
|
read_rows(csa);
|
|
/* determine objective row */
|
|
if (parm->obj_name == NULL || parm->obj_name[0] == '\0')
|
|
{ /* use the first row of N type */
|
|
int i;
|
|
for (i = 1; i <= P->m; i++)
|
|
{ if (P->row[i]->type == GLP_FR)
|
|
{ csa->obj_row = i;
|
|
break;
|
|
}
|
|
}
|
|
if (csa->obj_row == 0)
|
|
warning(csa, "unable to determine objective row\n");
|
|
}
|
|
else
|
|
{ /* use a row with specified name */
|
|
int i;
|
|
for (i = 1; i <= P->m; i++)
|
|
{ xassert(P->row[i]->name != NULL);
|
|
if (strcmp(parm->obj_name, P->row[i]->name) == 0)
|
|
{ csa->obj_row = i;
|
|
break;
|
|
}
|
|
}
|
|
if (csa->obj_row == 0)
|
|
error(csa, "objective row '%s' not found\n",
|
|
parm->obj_name);
|
|
}
|
|
if (csa->obj_row != 0)
|
|
{ glp_set_obj_name(P, P->row[csa->obj_row]->name);
|
|
xprintf("Objective: %s\n", P->obj);
|
|
}
|
|
/* read COLUMNS section */
|
|
if (strcmp(csa->field, "COLUMNS") != 0)
|
|
error(csa, "missing COLUMNS indicator record\n");
|
|
read_columns(csa);
|
|
/* set objective coefficients */
|
|
if (csa->obj_row != 0)
|
|
{ GLPAIJ *aij;
|
|
for (aij = P->row[csa->obj_row]->ptr; aij != NULL; aij =
|
|
aij->r_next) glp_set_obj_coef(P, aij->col->j, aij->val);
|
|
}
|
|
/* read optional RHS section */
|
|
if (strcmp(csa->field, "RHS") == 0)
|
|
read_rhs(csa);
|
|
/* read optional RANGES section */
|
|
if (strcmp(csa->field, "RANGES") == 0)
|
|
read_ranges(csa);
|
|
/* read optional BOUNDS section */
|
|
if (strcmp(csa->field, "BOUNDS") == 0)
|
|
read_bounds(csa);
|
|
/* read ENDATA indicator record */
|
|
if (strcmp(csa->field, "ENDATA") != 0)
|
|
error(csa, "invalid use of %s indicator record\n",
|
|
csa->field);
|
|
/* print some statistics */
|
|
xprintf("%d row%s, %d column%s, %d non-zero%s\n",
|
|
P->m, P->m == 1 ? "" : "s", P->n, P->n == 1 ? "" : "s",
|
|
P->nnz, P->nnz == 1 ? "" : "s");
|
|
if (glp_get_num_int(P) > 0)
|
|
{ int ni = glp_get_num_int(P);
|
|
int nb = glp_get_num_bin(P);
|
|
if (ni == 1)
|
|
{ if (nb == 0)
|
|
xprintf("One variable is integer\n");
|
|
else
|
|
xprintf("One variable is binary\n");
|
|
}
|
|
else
|
|
{ xprintf("%d integer variables, ", ni);
|
|
if (nb == 0)
|
|
xprintf("none");
|
|
else if (nb == 1)
|
|
xprintf("one");
|
|
else if (nb == ni)
|
|
xprintf("all");
|
|
else
|
|
xprintf("%d", nb);
|
|
xprintf(" of which %s binary\n", nb == 1 ? "is" : "are");
|
|
}
|
|
}
|
|
xprintf("%d records were read\n", csa->recno);
|
|
#if 1 /* 08/VIII-2013 */
|
|
/* remove free rows */
|
|
{ int i, nrs, *num;
|
|
num = talloc(1+P->m, int);
|
|
nrs = 0;
|
|
for (i = 1; i <= P->m; i++)
|
|
{ if (P->row[i]->type == GLP_FR)
|
|
num[++nrs] = i;
|
|
}
|
|
if (nrs > 0)
|
|
{ glp_del_rows(P, nrs, num);
|
|
if (nrs == 1)
|
|
xprintf("One free row was removed\n");
|
|
else
|
|
xprintf("%d free rows were removed\n", nrs);
|
|
}
|
|
tfree(num);
|
|
}
|
|
#endif
|
|
/* problem data has been successfully read */
|
|
glp_delete_index(P);
|
|
glp_sort_matrix(P);
|
|
ret = 0;
|
|
done: if (csa->fp != NULL) glp_close(csa->fp);
|
|
if (csa->work1 != NULL) xfree(csa->work1);
|
|
if (csa->work2 != NULL) xfree(csa->work2);
|
|
if (csa->work3 != NULL) xfree(csa->work3);
|
|
if (ret != 0) glp_erase_prob(P);
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NAME
|
|
*
|
|
* glp_write_mps - write problem data in MPS format
|
|
*
|
|
* SYNOPSIS
|
|
*
|
|
* int glp_write_mps(glp_prob *P, int fmt, const glp_mpscp *parm,
|
|
* const char *fname);
|
|
*
|
|
* DESCRIPTION
|
|
*
|
|
* The routine glp_write_mps writes problem data in MPS format to a
|
|
* text file.
|
|
*
|
|
* The parameter fmt specifies the version of MPS format:
|
|
*
|
|
* GLP_MPS_DECK - fixed (ancient) MPS format;
|
|
* GLP_MPS_FILE - free (modern) MPS format.
|
|
*
|
|
* The parameter parm is a pointer to the structure glp_mpscp, which
|
|
* specifies control parameters used by the routine. If parm is NULL,
|
|
* the routine uses default settings.
|
|
*
|
|
* The character string fname specifies a name of the text file to be
|
|
* written.
|
|
*
|
|
* RETURNS
|
|
*
|
|
* If the operation was successful, the routine glp_read_mps returns
|
|
* zero. Otherwise, it prints an error message and returns non-zero. */
|
|
|
|
#define csa csa1
|
|
|
|
struct csa
|
|
{ /* common storage area */
|
|
glp_prob *P;
|
|
/* pointer to problem object */
|
|
int deck;
|
|
/* MPS format (0 - free, 1 - fixed) */
|
|
const glp_mpscp *parm;
|
|
/* pointer to control parameters */
|
|
char field[255+1];
|
|
/* field buffer */
|
|
};
|
|
|
|
static char *mps_name(struct csa *csa)
|
|
{ /* make problem name */
|
|
char *f;
|
|
if (csa->P->name == NULL)
|
|
csa->field[0] = '\0';
|
|
else if (csa->deck)
|
|
{ strncpy(csa->field, csa->P->name, 8);
|
|
csa->field[8] = '\0';
|
|
}
|
|
else
|
|
strcpy(csa->field, csa->P->name);
|
|
for (f = csa->field; *f != '\0'; f++)
|
|
if (*f == ' ') *f = '_';
|
|
return csa->field;
|
|
}
|
|
|
|
static char *row_name(struct csa *csa, int i)
|
|
{ /* make i-th row name */
|
|
char *f;
|
|
xassert(0 <= i && i <= csa->P->m);
|
|
if (i == 0 || csa->P->row[i]->name == NULL ||
|
|
csa->deck && strlen(csa->P->row[i]->name) > 8)
|
|
sprintf(csa->field, "R%07d", i);
|
|
else
|
|
{ strcpy(csa->field, csa->P->row[i]->name);
|
|
for (f = csa->field; *f != '\0'; f++)
|
|
if (*f == ' ') *f = '_';
|
|
}
|
|
return csa->field;
|
|
}
|
|
|
|
static char *col_name(struct csa *csa, int j)
|
|
{ /* make j-th column name */
|
|
char *f;
|
|
xassert(1 <= j && j <= csa->P->n);
|
|
if (csa->P->col[j]->name == NULL ||
|
|
csa->deck && strlen(csa->P->col[j]->name) > 8)
|
|
sprintf(csa->field, "C%07d", j);
|
|
else
|
|
{ strcpy(csa->field, csa->P->col[j]->name);
|
|
for (f = csa->field; *f != '\0'; f++)
|
|
if (*f == ' ') *f = '_';
|
|
}
|
|
return csa->field;
|
|
}
|
|
|
|
static char *mps_numb(struct csa *csa, double val)
|
|
{ /* format floating-point number */
|
|
int dig;
|
|
char *exp;
|
|
for (dig = 12; dig >= 6; dig--)
|
|
{ if (val != 0.0 && fabs(val) < 0.002)
|
|
sprintf(csa->field, "%.*E", dig-1, val);
|
|
else
|
|
sprintf(csa->field, "%.*G", dig, val);
|
|
exp = strchr(csa->field, 'E');
|
|
if (exp != NULL)
|
|
sprintf(exp+1, "%d", atoi(exp+1));
|
|
if (strlen(csa->field) <= 12) break;
|
|
}
|
|
xassert(strlen(csa->field) <= 12);
|
|
return csa->field;
|
|
}
|
|
|
|
int glp_write_mps(glp_prob *P, int fmt, const glp_mpscp *parm,
|
|
const char *fname)
|
|
{ /* write problem data in MPS format */
|
|
glp_mpscp _parm;
|
|
struct csa _csa, *csa = &_csa;
|
|
glp_file *fp;
|
|
int out_obj, one_col = 0, empty = 0;
|
|
int i, j, recno, marker, count, gap, ret;
|
|
xprintf("Writing problem data to '%s'...\n", fname);
|
|
if (!(fmt == GLP_MPS_DECK || fmt == GLP_MPS_FILE))
|
|
xerror("glp_write_mps: fmt = %d; invalid parameter\n", fmt);
|
|
if (parm == NULL)
|
|
glp_init_mpscp(&_parm), parm = &_parm;
|
|
/* check control parameters */
|
|
check_parm("glp_write_mps", parm);
|
|
/* initialize common storage area */
|
|
csa->P = P;
|
|
csa->deck = (fmt == GLP_MPS_DECK);
|
|
csa->parm = parm;
|
|
/* create output MPS file */
|
|
fp = glp_open(fname, "w"), recno = 0;
|
|
if (fp == NULL)
|
|
{ xprintf("Unable to create '%s' - %s\n", fname, get_err_msg());
|
|
ret = 1;
|
|
goto done;
|
|
}
|
|
/* write comment records */
|
|
xfprintf(fp, "* %-*s%s\n", P->name == NULL ? 1 : 12, "Problem:",
|
|
P->name == NULL ? "" : P->name), recno++;
|
|
xfprintf(fp, "* %-12s%s\n", "Class:", glp_get_num_int(P) == 0 ?
|
|
"LP" : "MIP"), recno++;
|
|
xfprintf(fp, "* %-12s%d\n", "Rows:", P->m), recno++;
|
|
if (glp_get_num_int(P) == 0)
|
|
xfprintf(fp, "* %-12s%d\n", "Columns:", P->n), recno++;
|
|
else
|
|
xfprintf(fp, "* %-12s%d (%d integer, %d binary)\n",
|
|
"Columns:", P->n, glp_get_num_int(P), glp_get_num_bin(P)),
|
|
recno++;
|
|
xfprintf(fp, "* %-12s%d\n", "Non-zeros:", P->nnz), recno++;
|
|
xfprintf(fp, "* %-12s%s\n", "Format:", csa->deck ? "Fixed MPS" :
|
|
"Free MPS"), recno++;
|
|
xfprintf(fp, "*\n", recno++);
|
|
/* write NAME indicator record */
|
|
xfprintf(fp, "NAME%*s%s\n",
|
|
P->name == NULL ? 0 : csa->deck ? 10 : 1, "", mps_name(csa)),
|
|
recno++;
|
|
#if 1
|
|
/* determine whether to write the objective row */
|
|
out_obj = 1;
|
|
for (i = 1; i <= P->m; i++)
|
|
{ if (P->row[i]->type == GLP_FR)
|
|
{ out_obj = 0;
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
/* write ROWS section */
|
|
xfprintf(fp, "ROWS\n"), recno++;
|
|
for (i = (out_obj ? 0 : 1); i <= P->m; i++)
|
|
{ int type;
|
|
type = (i == 0 ? GLP_FR : P->row[i]->type);
|
|
if (type == GLP_FR)
|
|
type = 'N';
|
|
else if (type == GLP_LO)
|
|
type = 'G';
|
|
else if (type == GLP_UP)
|
|
type = 'L';
|
|
else if (type == GLP_DB || type == GLP_FX)
|
|
type = 'E';
|
|
else
|
|
xassert(type != type);
|
|
xfprintf(fp, " %c%*s%s\n", type, csa->deck ? 2 : 1, "",
|
|
row_name(csa, i)), recno++;
|
|
}
|
|
/* write COLUMNS section */
|
|
xfprintf(fp, "COLUMNS\n"), recno++;
|
|
marker = 0;
|
|
for (j = 1; j <= P->n; j++)
|
|
{ GLPAIJ cj, *aij;
|
|
int kind;
|
|
kind = P->col[j]->kind;
|
|
if (kind == GLP_CV)
|
|
{ if (marker % 2 == 1)
|
|
{ /* close current integer block */
|
|
marker++;
|
|
xfprintf(fp, "%*sM%07d%*s'MARKER'%*s'INTEND'\n",
|
|
csa->deck ? 4 : 1, "", marker, csa->deck ? 2 : 1, "",
|
|
csa->deck ? 17 : 1, ""), recno++;
|
|
}
|
|
}
|
|
else if (kind == GLP_IV)
|
|
{ if (marker % 2 == 0)
|
|
{ /* open new integer block */
|
|
marker++;
|
|
xfprintf(fp, "%*sM%07d%*s'MARKER'%*s'INTORG'\n",
|
|
csa->deck ? 4 : 1, "", marker, csa->deck ? 2 : 1, "",
|
|
csa->deck ? 17 : 1, ""), recno++;
|
|
}
|
|
}
|
|
else
|
|
xassert(kind != kind);
|
|
if (out_obj && P->col[j]->coef != 0.0)
|
|
{ /* make fake objective coefficient */
|
|
aij = &cj;
|
|
aij->row = NULL;
|
|
aij->val = P->col[j]->coef;
|
|
aij->c_next = P->col[j]->ptr;
|
|
}
|
|
else
|
|
aij = P->col[j]->ptr;
|
|
#if 1 /* FIXME */
|
|
if (aij == NULL)
|
|
{ /* empty column */
|
|
empty++;
|
|
xfprintf(fp, "%*s%-*s", csa->deck ? 4 : 1, "",
|
|
csa->deck ? 8 : 1, col_name(csa, j));
|
|
/* we need a row */
|
|
xassert(P->m > 0);
|
|
xfprintf(fp, "%*s%-*s",
|
|
csa->deck ? 2 : 1, "", csa->deck ? 8 : 1,
|
|
row_name(csa, 1));
|
|
xfprintf(fp, "%*s0%*s$ empty column\n",
|
|
csa->deck ? 13 : 1, "", csa->deck ? 3 : 1, ""), recno++;
|
|
}
|
|
#endif
|
|
count = 0;
|
|
for (aij = aij; aij != NULL; aij = aij->c_next)
|
|
{ if (one_col || count % 2 == 0)
|
|
xfprintf(fp, "%*s%-*s", csa->deck ? 4 : 1, "",
|
|
csa->deck ? 8 : 1, col_name(csa, j));
|
|
gap = (one_col || count % 2 == 0 ? 2 : 3);
|
|
xfprintf(fp, "%*s%-*s",
|
|
csa->deck ? gap : 1, "", csa->deck ? 8 : 1,
|
|
row_name(csa, aij->row == NULL ? 0 : aij->row->i));
|
|
xfprintf(fp, "%*s%*s",
|
|
csa->deck ? 2 : 1, "", csa->deck ? 12 : 1,
|
|
mps_numb(csa, aij->val)), count++;
|
|
if (one_col || count % 2 == 0)
|
|
xfprintf(fp, "\n"), recno++;
|
|
}
|
|
if (!(one_col || count % 2 == 0))
|
|
xfprintf(fp, "\n"), recno++;
|
|
}
|
|
if (marker % 2 == 1)
|
|
{ /* close last integer block */
|
|
marker++;
|
|
xfprintf(fp, "%*sM%07d%*s'MARKER'%*s'INTEND'\n",
|
|
csa->deck ? 4 : 1, "", marker, csa->deck ? 2 : 1, "",
|
|
csa->deck ? 17 : 1, ""), recno++;
|
|
}
|
|
#if 1
|
|
if (empty > 0)
|
|
xprintf("Warning: problem has %d empty column(s)\n", empty);
|
|
#endif
|
|
/* write RHS section */
|
|
xfprintf(fp, "RHS\n"), recno++;
|
|
count = 0;
|
|
for (i = (out_obj ? 0 : 1); i <= P->m; i++)
|
|
{ int type;
|
|
double rhs;
|
|
if (i == 0)
|
|
rhs = P->c0;
|
|
else
|
|
{ type = P->row[i]->type;
|
|
if (type == GLP_FR)
|
|
rhs = 0.0;
|
|
else if (type == GLP_LO)
|
|
rhs = P->row[i]->lb;
|
|
else if (type == GLP_UP)
|
|
rhs = P->row[i]->ub;
|
|
else if (type == GLP_DB || type == GLP_FX)
|
|
rhs = P->row[i]->lb;
|
|
else
|
|
xassert(type != type);
|
|
}
|
|
if (rhs != 0.0)
|
|
{ if (one_col || count % 2 == 0)
|
|
xfprintf(fp, "%*s%-*s", csa->deck ? 4 : 1, "",
|
|
csa->deck ? 8 : 1, "RHS1");
|
|
gap = (one_col || count % 2 == 0 ? 2 : 3);
|
|
xfprintf(fp, "%*s%-*s",
|
|
csa->deck ? gap : 1, "", csa->deck ? 8 : 1,
|
|
row_name(csa, i));
|
|
xfprintf(fp, "%*s%*s",
|
|
csa->deck ? 2 : 1, "", csa->deck ? 12 : 1,
|
|
mps_numb(csa, rhs)), count++;
|
|
if (one_col || count % 2 == 0)
|
|
xfprintf(fp, "\n"), recno++;
|
|
}
|
|
}
|
|
if (!(one_col || count % 2 == 0))
|
|
xfprintf(fp, "\n"), recno++;
|
|
/* write RANGES section */
|
|
for (i = P->m; i >= 1; i--)
|
|
if (P->row[i]->type == GLP_DB) break;
|
|
if (i == 0) goto bnds;
|
|
xfprintf(fp, "RANGES\n"), recno++;
|
|
count = 0;
|
|
for (i = 1; i <= P->m; i++)
|
|
{ if (P->row[i]->type == GLP_DB)
|
|
{ if (one_col || count % 2 == 0)
|
|
xfprintf(fp, "%*s%-*s", csa->deck ? 4 : 1, "",
|
|
csa->deck ? 8 : 1, "RNG1");
|
|
gap = (one_col || count % 2 == 0 ? 2 : 3);
|
|
xfprintf(fp, "%*s%-*s",
|
|
csa->deck ? gap : 1, "", csa->deck ? 8 : 1,
|
|
row_name(csa, i));
|
|
xfprintf(fp, "%*s%*s",
|
|
csa->deck ? 2 : 1, "", csa->deck ? 12 : 1,
|
|
mps_numb(csa, P->row[i]->ub - P->row[i]->lb)), count++;
|
|
if (one_col || count % 2 == 0)
|
|
xfprintf(fp, "\n"), recno++;
|
|
}
|
|
}
|
|
if (!(one_col || count % 2 == 0))
|
|
xfprintf(fp, "\n"), recno++;
|
|
bnds: /* write BOUNDS section */
|
|
for (j = P->n; j >= 1; j--)
|
|
if (!(P->col[j]->kind == GLP_CV &&
|
|
P->col[j]->type == GLP_LO && P->col[j]->lb == 0.0))
|
|
break;
|
|
if (j == 0) goto endt;
|
|
xfprintf(fp, "BOUNDS\n"), recno++;
|
|
for (j = 1; j <= P->n; j++)
|
|
{ int type, data[2];
|
|
double bnd[2];
|
|
char *spec[2];
|
|
spec[0] = spec[1] = NULL;
|
|
type = P->col[j]->type;
|
|
if (type == GLP_FR)
|
|
spec[0] = "FR", data[0] = 0;
|
|
else if (type == GLP_LO)
|
|
{ if (P->col[j]->lb != 0.0)
|
|
spec[0] = "LO", data[0] = 1, bnd[0] = P->col[j]->lb;
|
|
if (P->col[j]->kind == GLP_IV)
|
|
spec[1] = "PL", data[1] = 0;
|
|
}
|
|
else if (type == GLP_UP)
|
|
{ spec[0] = "MI", data[0] = 0;
|
|
spec[1] = "UP", data[1] = 1, bnd[1] = P->col[j]->ub;
|
|
}
|
|
else if (type == GLP_DB)
|
|
{ if (P->col[j]->lb != 0.0)
|
|
spec[0] = "LO", data[0] = 1, bnd[0] = P->col[j]->lb;
|
|
spec[1] = "UP", data[1] = 1, bnd[1] = P->col[j]->ub;
|
|
}
|
|
else if (type == GLP_FX)
|
|
spec[0] = "FX", data[0] = 1, bnd[0] = P->col[j]->lb;
|
|
else
|
|
xassert(type != type);
|
|
for (i = 0; i <= 1; i++)
|
|
{ if (spec[i] != NULL)
|
|
{ xfprintf(fp, " %s %-*s%*s%-*s", spec[i],
|
|
csa->deck ? 8 : 1, "BND1", csa->deck ? 2 : 1, "",
|
|
csa->deck ? 8 : 1, col_name(csa, j));
|
|
if (data[i])
|
|
xfprintf(fp, "%*s%*s", csa->deck ? 2 : 1, "",
|
|
csa->deck ? 12 : 1, mps_numb(csa, bnd[i]));
|
|
xfprintf(fp, "\n"), recno++;
|
|
}
|
|
}
|
|
}
|
|
endt: /* write ENDATA indicator record */
|
|
xfprintf(fp, "ENDATA\n"), recno++;
|
|
#if 0 /* FIXME */
|
|
xfflush(fp);
|
|
#endif
|
|
if (glp_ioerr(fp))
|
|
{ xprintf("Write error on '%s' - %s\n", fname, get_err_msg());
|
|
ret = 1;
|
|
goto done;
|
|
}
|
|
/* problem data has been successfully written */
|
|
xprintf("%d records were written\n", recno);
|
|
ret = 0;
|
|
done: if (fp != NULL) glp_close(fp);
|
|
return ret;
|
|
}
|
|
|
|
/* eof */
|