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/* err/gsl_message.h
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 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 3 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_MESSAGE_H__
#define __GSL_MESSAGE_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
/* Provide a general messaging service for client use. Messages can
* be selectively turned off at compile time by defining an
* appropriate message mask. Client code which uses the GSL_MESSAGE()
* macro must provide a mask which is or'ed with the GSL_MESSAGE_MASK.
*
* The messaging service can be completely turned off
* by defining GSL_MESSAGING_OFF. */
void gsl_message(const char * message, const char * file, int line,
unsigned int mask);
#ifndef GSL_MESSAGE_MASK
#define GSL_MESSAGE_MASK 0xffffffffu /* default all messages allowed */
#endif
GSL_VAR unsigned int gsl_message_mask ;
/* Provide some symolic masks for client ease of use. */
enum {
GSL_MESSAGE_MASK_A = 1,
GSL_MESSAGE_MASK_B = 2,
GSL_MESSAGE_MASK_C = 4,
GSL_MESSAGE_MASK_D = 8,
GSL_MESSAGE_MASK_E = 16,
GSL_MESSAGE_MASK_F = 32,
GSL_MESSAGE_MASK_G = 64,
GSL_MESSAGE_MASK_H = 128
} ;
#ifdef GSL_MESSAGING_OFF /* throw away messages */
#define GSL_MESSAGE(message, mask) do { } while(0)
#else /* output all messages */
#define GSL_MESSAGE(message, mask) \
do { \
if (mask & GSL_MESSAGE_MASK) \
gsl_message (message, __FILE__, __LINE__, mask) ; \
} while (0)
#endif
__END_DECLS
#endif /* __GSL_MESSAGE_H__ */
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