home *** CD-ROM | disk | FTP | other *** search
- /* err/gsl_message.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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #ifndef __GSL_MESSAGE_H__
- #define __GSL_MESSAGE_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
-
- #ifdef GSL_EXPORTS
- __declspec(dllexport) unsigned int gsl_message_mask ;
- #elif defined(GSL_IMPORTS)
- __declspec(dllimport) unsigned int gsl_message_mask ;
- #else
- extern unsigned int gsl_message_mask ;
- #endif
-
- /* 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__ */
-
-
-