https://github.com/ntamas/plfit
plfit_error.h
/* plfit_error.h
*
* Copyright (C) 2010-2011 Tamas Nepusz
*
* 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 __ERROR_H__
#define __ERROR_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 {
PLFIT_SUCCESS = 0,
PLFIT_FAILURE = 1,
PLFIT_EINVAL = 2,
PLFIT_UNDRFLOW = 3,
PLFIT_OVERFLOW = 4,
PLFIT_ENOMEM = 5,
PLFIT_EMAXITER = 6
};
#if (defined(__GNUC__) && GCC_VERSION_MAJOR >= 3)
# define PLFIT_UNLIKELY(a) __builtin_expect((a), 0)
# define PLFIT_LIKELY(a) __builtin_expect((a), 1)
#else
# define PLFIT_UNLIKELY(a) a
# define PLFIT_LIKELY(a) a
#endif
#define PLFIT_CHECK(a) \
do {\
int plfit_i_ret=(a); \
if (PLFIT_UNLIKELY(plfit_i_ret != PLFIT_SUCCESS)) {\
return plfit_i_ret; \
} \
} while (0)
#define PLFIT_ERROR(reason,plfit_errno) \
do {\
plfit_error (reason, __FILE__, __LINE__, plfit_errno) ; \
return plfit_errno ; \
} while (0)
typedef void plfit_error_handler_t(const char*, const char*, int, int);
extern plfit_error_handler_t plfit_error_handler_abort;
extern plfit_error_handler_t plfit_error_handler_ignore;
extern plfit_error_handler_t plfit_error_handler_printignore;
plfit_error_handler_t* plfit_set_error_handler(plfit_error_handler_t* new_handler);
void plfit_error(const char *reason, const char *file, int line, int plfit_errno);
const char* plfit_strerror(const int plfit_errno);
void plfit_error_handler_abort(const char *reason, const char *file, int line,
int plfit_errno);
void plfit_error_handler_ignore(const char *reason, const char *file, int line,
int plfit_errno);
void plfit_error_handler_printignore(const char *reason, const char *file, int line,
int plfit_errno);
__END_DECLS
#endif /* __ERROR_H__ */