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explain_vfprintf_or_die(3) Library Functions Manual explain_vfprintf_or_die(3)

NAME
       explain_vfprintf_or_die - formatted output conversion and report	errors

SYNOPSIS
       #include	<libexplain/vfprintf.h>
       void explain_vfprintf_or_die(FILE *fp, const char *format, va_list ap);
       int  explain_vfprintf_on_error(FILE  *fp,  const	 char *format, va_list
       ap);

DESCRIPTION
       The explain_vfprintf_or_die function is used to	call  the  vfprintf(3)
       system  call.  On failure an explanation	will be	printed	to stderr, ob-
       tained from the explain_vfprintf(3) function, and then the process ter-
       minates by calling exit(EXIT_FAILURE).

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

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

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

       ap      The ap, exactly as to be	passed to the vfprintf(3) system call.

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

       The  explain_vfprintf_on_error function always returns the value	return
       by the wrapped vfprintf(3) system call.

EXAMPLE
       The explain_vfprintf_or_die function is intended	to be used in a	 fash-
       ion similar to the following example:
	      explain_vfprintf_or_die(fp, format, ap);

SEE ALSO
       vfprintf(3)
	       formatted output	conversion

       explain_vfprintf(3)
	       explain vfprintf(3) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2010 Peter	Miller

						    explain_vfprintf_or_die(3)

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

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