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explain_fprintf_or_die(3)  Library Functions Manual  explain_fprintf_or_die(3)

NAME
       explain_fprintf_or_die -	formatted output conversion and	report errors

SYNOPSIS
       #include	<libexplain/fprintf.h>
       int explain_fprintf_or_die(FILE *fp, const char *format,	...);
       int explain_fprintf_on_error(FILE *fp, const char *format, ...);

DESCRIPTION
       The explain_fprintf_or_die function is used to call the fprintf(3) sys-
       tem call. On failure an explanation will	be printed to stderr, obtained
       from  the  explain_fprintf(3) function, and then	the process terminates
       by calling exit(EXIT_FAILURE).

       The explain_fprintf_on_error function is	used to	 call  the  fprintf(3)
       system  call.  On failure an explanation	will be	printed	to stderr, ob-
       tained from the explain_fprintf(3) function, but	still returns  to  the
       caller.

       fp      The fp, exactly as to be	passed to the fprintf(3) system	call.

       format  The  format,  exactly  as to be passed to the fprintf(3)	system
	       call.

RETURN VALUE
       The  explain_fprintf_or_die  function  only  returns  on	 success,  see
       fprintf(3)  for more information. On failure, prints an explanation and
       exits, it does not return.

       The explain_fprintf_on_error function always returns the	 value	return
       by the wrapped fprintf(3) system	call.

EXAMPLE
       The explain_fprintf_or_die function is intended to be used in a fashion
       similar to the following	example:
	      int result = explain_fprintf_or_die(fp, format, ...);

SEE ALSO
       fprintf(3)
	       formatted output	conversion

       explain_fprintf(3)
	       explain fprintf(3) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2010 Peter	Miller

						     explain_fprintf_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT

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