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/* histogram/file.c
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <stdio.h>
#include <gsl/gsl_errno.h>
#include <gsl/gsl_block.h>
#include <gsl/gsl_histogram.h>
int
gsl_histogram_fread (FILE * stream, gsl_histogram * h)
{
int status = gsl_block_raw_fread (stream, h->range, h->n + 1, 1);
if (status)
return status;
status = gsl_block_raw_fread (stream, h->bin, h->n, 1);
return status;
}
int
gsl_histogram_fwrite (FILE * stream, const gsl_histogram * h)
{
int status = gsl_block_raw_fwrite (stream, h->range, h->n + 1, 1);
if (status)
return status;
status = gsl_block_raw_fwrite (stream, h->bin, h->n, 1);
return status;
}
int
gsl_histogram_fprintf (FILE * stream, const gsl_histogram * h,
const char *range_format, const char *bin_format)
{
size_t i;
const size_t n = h->n;
for (i = 0; i < n; i++)
{
int status = fprintf (stream, range_format, h->range[i]);
if (status < 0)
{
GSL_ERROR ("fprintf failed", GSL_EFAILED);
}
status = putc (' ', stream);
if (status == EOF)
{
GSL_ERROR ("putc failed", GSL_EFAILED);
}
status = fprintf (stream, range_format, h->range[i + 1]);
if (status < 0)
{
GSL_ERROR ("fprintf failed", GSL_EFAILED);
}
status = putc (' ', stream);
if (status == EOF)
{
GSL_ERROR ("putc failed", GSL_EFAILED);
}
status = fprintf (stream, bin_format, h->bin[i]);
if (status < 0)
{
GSL_ERROR ("fprintf failed", GSL_EFAILED);
}
status = putc ('\n', stream);
if (status == EOF)
{
GSL_ERROR ("putc failed", GSL_EFAILED);
}
}
return GSL_SUCCESS;
}
int
gsl_histogram_fscanf (FILE * stream, gsl_histogram * h)
{
size_t i;
const size_t n = h->n;
double upper;
for (i = 0; i < n; i++)
{
int status = fscanf (stream,
"%lg %lg %lg", h->range + i, &upper,
h->bin + i);
if (status != 3)
{
GSL_ERROR ("fscanf failed", GSL_EFAILED);
}
}
h->range[n] = upper;
return GSL_SUCCESS;
}
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