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#ifndef errmsg_h
#define errmsg_h
/*
* Copyright (c) 2000, 2001, 2002, 2003, 2004 by Martin C. Shepherd.
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, and/or sell copies of the Software, and to permit persons
* to whom the Software is furnished to do so, provided that the above
* copyright notice(s) and this permission notice appear in all copies of
* the Software and that both the above copyright notice(s) and this
* permission notice appear in supporting documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
* OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Except as contained in this notice, the name of a copyright holder
* shall not be used in advertising or otherwise to promote the sale, use
* or other dealings in this Software without prior written authorization
* of the copyright holder.
*/
/*
* Set the longest expected length of an error message (excluding its
* '\0' terminator. Since any message over a nominal terminal width of
* 80 characters is going to look a mess, it makes no sense to support
* huge lengths. Note that many uses of strings declared with this
* macro assume that it will be at least 81, so don't reduce it below
* this limit.
*/
#define ERR_MSG_LEN 128
/*
* Provide an opaque typedef to the error-message object.
*/
typedef struct ErrMsg ErrMsg;
/*
* The following token is used to terminate the argument lists of calls
* to _err_record_msg().
*/
#define END_ERR_MSG ((const char *)0)
/*
* Allocate a new error-message buffer.
*/
ErrMsg *_new_ErrMsg(void);
/*
* Delete an error message buffer.
*/
ErrMsg *_del_ErrMsg(ErrMsg *err);
/*
* Concatenate a list of string arguments into the specified buffer, buff[],
* which has an allocated size of buffdim characters.
* The last argument must be END_ERR_MSG to terminate the argument list.
*/
void _err_record_msg(ErrMsg *err, ...);
/*
* Replace the current error message with an empty string.
*/
void _err_clear_msg(ErrMsg *err);
/*
* Return a pointer to the error message buffer. This is
* a '\0' terminated character array containing ERR_MSG_LEN+1
* elements.
*/
char *_err_get_msg(ErrMsg *err);
#endif
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