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/* err/gsl_errno.h
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __GSL_ERRNO_H__
#define __GSL_ERRNO_H__
#include <stdio.h>
#include <errno.h>
#include <gsl/gsl_types.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
enum {
GSL_SUCCESS = 0,
GSL_FAILURE = -1,
GSL_CONTINUE = -2, /* iteration has not converged */
GSL_EDOM = 1, /* input domain error, e.g sqrt(-1) */
GSL_ERANGE = 2, /* output range error, e.g. exp(1e100) */
GSL_EFAULT = 3, /* invalid pointer */
GSL_EINVAL = 4, /* invalid argument supplied by user */
GSL_EFAILED = 5, /* generic failure */
GSL_EFACTOR = 6, /* factorization failed */
GSL_ESANITY = 7, /* sanity check failed - shouldn't happen */
GSL_ENOMEM = 8, /* malloc failed */
GSL_EBADFUNC = 9, /* problem with user-supplied function */
GSL_ERUNAWAY = 10, /* iterative process is out of control */
GSL_EMAXITER = 11, /* exceeded max number of iterations */
GSL_EZERODIV = 12, /* tried to divide by zero */
GSL_EBADTOL = 13, /* user specified an invalid tolerance */
GSL_ETOL = 14, /* failed to reach the specified tolerance */
GSL_EUNDRFLW = 15, /* underflow */
GSL_EOVRFLW = 16, /* overflow */
GSL_ELOSS = 17, /* loss of accuracy */
GSL_EROUND = 18, /* failed because of roundoff error */
GSL_EBADLEN = 19, /* matrix, vector lengths are not conformant */
GSL_ENOTSQR = 20, /* matrix not square */
GSL_ESING = 21, /* apparent singularity detected */
GSL_EDIVERGE = 22, /* integral or series is divergent */
GSL_EUNSUP = 23, /* requested feature is not supported by the hardware */
GSL_EUNIMPL = 24, /* requested feature not (yet) implemented */
GSL_ECACHE = 25, /* cache limit exceeded */
GSL_ETABLE = 26, /* table limit exceeded */
GSL_ENOPROG = 27, /* iteration is not making progress towards solution */
GSL_ENOPROGJ = 28, /* jacobian evaluations are not improving the solution */
GSL_ETOLF = 29, /* cannot reach the specified tolerance in F */
GSL_ETOLX = 30, /* cannot reach the specified tolerance in X */
GSL_ETOLG = 31, /* cannot reach the specified tolerance in gradient */
GSL_EOF = 32 /* end of file */
} ;
void gsl_error (const char * reason, const char * file, int line,
int gsl_errno);
void gsl_stream_printf (const char *label, const char *file,
int line, const char *reason);
const char * gsl_strerror (const int gsl_errno);
typedef void gsl_error_handler_t (const char * reason, const char * file,
int line, int gsl_errno);
typedef void gsl_stream_handler_t (const char * label, const char * file,
int line, const char * reason);
gsl_error_handler_t *
gsl_set_error_handler (gsl_error_handler_t * new_handler);
gsl_error_handler_t *
gsl_set_error_handler_off (void);
gsl_stream_handler_t *
gsl_set_stream_handler (gsl_stream_handler_t * new_handler);
FILE * gsl_set_stream (FILE * new_stream);
/* GSL_ERROR: call the error handler, and return the error code */
#define GSL_ERROR(reason, gsl_errno) \
do { \
gsl_error (reason, __FILE__, __LINE__, gsl_errno) ; \
return gsl_errno ; \
} while (0)
/* GSL_ERROR_VAL: call the error handler, and return the given value */
#define GSL_ERROR_VAL(reason, gsl_errno, value) \
do { \
gsl_error (reason, __FILE__, __LINE__, gsl_errno) ; \
return value ; \
} while (0)
/* GSL_ERROR_VOID: call the error handler, and then return
(for void functions which still need to generate an error) */
#define GSL_ERROR_VOID(reason, gsl_errno) \
do { \
gsl_error (reason, __FILE__, __LINE__, gsl_errno) ; \
return ; \
} while (0)
/* GSL_ERROR_NULL suitable for out-of-memory conditions */
#define GSL_ERROR_NULL(reason, gsl_errno) GSL_ERROR_VAL(reason, gsl_errno, 0)
/* Sometimes you have several status results returned from
* function calls and you want to combine them in some sensible
* way. You cannot produce a "total" status condition, but you can
* pick one from a set of conditions based on an implied hierarchy.
*
* In other words:
* you have: status_a, status_b, ...
* you want: status = (status_a if it is bad, or status_b if it is bad,...)
*
* In this example you consider status_a to be more important and
* it is checked first, followed by the others in the order specified.
*
* Here are some dumb macros to do this.
*/
#define GSL_ERROR_SELECT_2(a,b) ((a) != GSL_SUCCESS ? (a) : ((b) != GSL_SUCCESS ? (b) : GSL_SUCCESS))
#define GSL_ERROR_SELECT_3(a,b,c) ((a) != GSL_SUCCESS ? (a) : GSL_ERROR_SELECT_2(b,c))
#define GSL_ERROR_SELECT_4(a,b,c,d) ((a) != GSL_SUCCESS ? (a) : GSL_ERROR_SELECT_3(b,c,d))
#define GSL_ERROR_SELECT_5(a,b,c,d,e) ((a) != GSL_SUCCESS ? (a) : GSL_ERROR_SELECT_4(b,c,d,e))
#define GSL_STATUS_UPDATE(sp, s) do { if ((s) != GSL_SUCCESS) *(sp) = (s);} while(0)
__END_DECLS
#endif /* __GSL_ERRNO_H__ */
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