home *** CD-ROM | disk | FTP | other *** search
- /* matrix/file_source.c
- *
- * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman, Brian Gough
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- int
- FUNCTION (gsl_matrix, fread) (FILE * stream, TYPE (gsl_matrix) * m)
- {
- int status = 0;
-
- const size_t size1 = m->size1;
- const size_t size2 = m->size2;
-
- const size_t tda = m->tda;
-
- if (tda == size2) /* the rows are contiguous */
- {
- status = FUNCTION (gsl_block, raw_fread) (stream,
- m->data,
- size1 * size2, 1);
- }
- else
- {
- size_t i;
-
- for (i = 0 ; i < size1 ; i++) /* read each row separately */
- {
- status = FUNCTION (gsl_block, raw_fread) (stream,
- m->data + i * tda,
- size2, 1);
- if (status)
- break;
- }
- }
-
- return status;
- }
-
- int
- FUNCTION (gsl_matrix, fwrite) (FILE * stream, const TYPE (gsl_matrix) * m)
- {
- int status = 0;
-
- const size_t size1 = m->size1;
- const size_t size2 = m->size2;
-
- const size_t tda = m->tda;
-
- if (tda == size2) /* the rows are contiguous */
- {
- status = FUNCTION (gsl_block, raw_fwrite) (stream,
- m->data,
- size1 * size2, 1);
- }
- else
- {
- size_t i;
-
- for (i = 0 ; i < size1 ; i++) /* write each row separately */
- {
- status = FUNCTION (gsl_block, raw_fwrite) (stream,
- m->data + i * tda,
- size2, 1);
- if (status)
- break;
- }
- }
-
- return status;
-
- }
-
- #if !(defined(USES_LONGDOUBLE) && !defined(HAVE_PRINTF_LONGDOUBLE))
- int
- FUNCTION (gsl_matrix, fprintf) (FILE * stream, const TYPE (gsl_matrix) * m,
- const char *format)
- {
- int status = 0;
-
- const size_t size1 = m->size1;
- const size_t size2 = m->size2;
-
- const size_t tda = m->tda;
-
- if (tda == size2) /* the rows are contiguous */
- {
- status = FUNCTION (gsl_block, raw_fprintf) (stream,
- m->data,
- size1 * size2, 1,
- format);
- }
- else
- {
- size_t i;
-
- for (i = 0 ; i < size1 ; i++) /* print each row separately */
- {
- status = FUNCTION (gsl_block, raw_fprintf) (stream,
- m->data + i * tda,
- size2, 1,
- format);
- if (status)
- break;
- }
- }
-
- return status;
- }
-
- int
- FUNCTION (gsl_matrix, fscanf) (FILE * stream, TYPE (gsl_matrix) * m)
- {
- int status = 0;
-
- const size_t size1 = m->size1;
- const size_t size2 = m->size2;
-
- const size_t tda = m->tda;
-
- if (tda == size2) /* the rows are contiguous */
- {
- status = FUNCTION (gsl_block, raw_fscanf) (stream,
- m->data,
- size1 * size2, 1);
- }
- else
- {
- size_t i;
-
- for (i = 0 ; i < size1 ; i++) /* scan each row separately */
- {
- status = FUNCTION (gsl_block, raw_fscanf) (stream,
- m->data + i * tda,
- size2, 1);
- if (status)
- break;
- }
- }
-
- return status;
- }
- #endif
-
-