| /* 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 2 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 <config.h> |
| #include <stdio.h> |
| #include <gsl/gsl_errno.h> |
| #include <gsl/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; |
| } |
| |