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- /* combination/file.c
- * based on permutation/file.c by Brian Gough
- *
- * Copyright (C) 2001 Szymon Jaroszewicz
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- #include "gsl__config.h"
- #include <stdio.h>
- #include "gsl_errno.h"
- #include "gsl_combination.h"
- #define IN_FORMAT "%lu"
- int
- gsl_combination_fread (FILE * stream, gsl_combination * c)
- {
- size_t k = c->k ;
- size_t * data = c->data ;
- size_t items = fread (data, sizeof (size_t), k, stream);
-
- if (items != k)
- {
- GSL_ERROR ("fread failed", GSL_EFAILED);
- }
-
- return GSL_SUCCESS;
- }
- int
- gsl_combination_fwrite (FILE * stream, const gsl_combination * c)
- {
- size_t k = c->k ;
- size_t * data = c->data ;
-
- size_t items = fwrite (data, sizeof (size_t), k, stream);
-
- if (items != k)
- {
- GSL_ERROR ("fwrite failed", GSL_EFAILED);
- }
- return GSL_SUCCESS;
- }
- int
- gsl_combination_fprintf (FILE * stream, const gsl_combination * c, const char *format)
- {
- size_t k = c->k ;
-
- size_t * data = c->data ;
-
- size_t i;
- for (i = 0; i < k; i++)
- {
- int status = fprintf (stream, format, data[i]);
- if (status < 0)
- {
- GSL_ERROR ("fprintf failed", GSL_EFAILED);
- }
- }
- return GSL_SUCCESS;
- }
- int
- gsl_combination_fscanf (FILE * stream, gsl_combination * c)
- {
- size_t k = c->k ;
-
- size_t * data = c->data ;
- size_t i;
- for (i = 0; i < k; i++)
- {
- unsigned long j ;
- /* FIXME: what if size_t != unsigned long ???
- want read in size_t but have to read in unsigned long to avoid
- error from compiler */
- int status = fscanf (stream, IN_FORMAT, &j);
- if (status != 1)
- {
- GSL_ERROR ("fscanf failed", GSL_EFAILED);
- }
- data[i] = j;
- }
- return GSL_SUCCESS;
- }
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