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81 lines
2.5 KiB
81 lines
2.5 KiB
/* dimacs.h (reading data in DIMACS format) */
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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) 2009-2015 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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#ifndef DIMACS_H
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#define DIMACS_H
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#include "env.h"
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typedef struct DMX DMX;
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struct DMX
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{ /* DIMACS data reader */
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jmp_buf jump;
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/* label for go to in case of error */
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const char *fname;
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/* name of input text file */
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glp_file *fp;
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/* stream assigned to input text file */
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int count;
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/* line count */
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int c;
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/* current character */
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char field[255+1];
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/* data field */
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int empty;
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/* warning 'empty line ignored' was printed */
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int nonint;
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/* warning 'non-integer data detected' was printed */
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};
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#define dmx_error _glp_dmx_error
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void dmx_error(DMX *csa, const char *fmt, ...);
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/* print error message and terminate processing */
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#define dmx_warning _glp_dmx_warning
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void dmx_warning(DMX *csa, const char *fmt, ...);
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/* print warning message and continue processing */
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#define dmx_read_char _glp_dmx_read_char
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void dmx_read_char(DMX *csa);
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/* read character from input text file */
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#define dmx_read_designator _glp_dmx_read_designator
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void dmx_read_designator(DMX *csa);
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/* read one-character line designator */
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#define dmx_read_field _glp_dmx_read_field
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void dmx_read_field(DMX *csa);
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/* read data field */
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#define dmx_end_of_line _glp_dmx_end_of_line
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void dmx_end_of_line(DMX *csa);
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/* skip white-space characters until end of line */
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#define dmx_check_int _glp_dmx_check_int
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void dmx_check_int(DMX *csa, double num);
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/* print a warning if non-integer data are detected */
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#endif
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/* eof */
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