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/* histogram/ntuple.h
*
* Copyright (C) 2000 Simone Piccardi
*
* 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.
*
*/
/* Jan/2001 Modified by Brian Gough. Minor changes for GSL */
#ifndef __GSL_NTUPLE_H__
#define __GSL_NTUPLE_H__
#include <stdlib.h>
#include <stdio.h>
#include <gsl/gsl_errno.h>
#include <gsl/gsl_histogram.h>
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS /* empty */
# define __END_DECLS /* empty */
#endif
__BEGIN_DECLS
typedef struct {
FILE * file;
void * ntuple_data;
size_t size;
} gsl_ntuple;
typedef struct {
int (* function) (void * ntuple_data, void * params);
void * params;
} gsl_ntuple_select_fn;
typedef struct {
double (* function) (void * ntuple_data, void * params);
void * params;
} gsl_ntuple_value_fn;
gsl_ntuple *
gsl_ntuple_open (char * filename, void * ntuple_data, size_t size);
gsl_ntuple *
gsl_ntuple_create (char * filename, void * ntuple_data, size_t size);
int gsl_ntuple_write (gsl_ntuple * ntuple);
int gsl_ntuple_read (gsl_ntuple * ntuple);
int gsl_ntuple_bookdata (gsl_ntuple * ntuple); /* synonym for write */
int gsl_ntuple_project (gsl_histogram * h, gsl_ntuple * ntuple,
gsl_ntuple_value_fn *value_func,
gsl_ntuple_select_fn *select_func);
int gsl_ntuple_close (gsl_ntuple * ntuple);
__END_DECLS
#endif /* __GSL_NTUPLE_H__ */
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