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explain_vasprintf_or_die(3)Library Functions Manualexplain_vasprintf_or_die(3)

NAME
       explain_vasprintf_or_die	- print	to allocated string and	report errors

SYNOPSIS
       #include	<libexplain/vasprintf.h>
       int  explain_vasprintf_or_die(char  **data, const char *format, va_list
       ap);
       int explain_vasprintf_on_error(char **data, const char *format, va_list
       ap);

DESCRIPTION
       The  explain_vasprintf_or_die function is used to call the vasprintf(3)
       system call. On failure an explanation will be printed to  stderr,  ob-
       tained  from  the  explain_vasprintf(3)	function, and then the process
       terminates by calling exit(EXIT_FAILURE).

       The  explain_vasprintf_on_error	function   is	used   to   call   the
       vasprintf(3)  system call. On failure an	explanation will be printed to
       stderr, obtained	from the explain_vasprintf(3) function,	but still  re-
       turns to	the caller.

       data    The  data,  exactly  as to be passed to the vasprintf(3)	system
	       call.

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

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

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

       The explain_vasprintf_on_error function always returns the value	return
       by the wrapped vasprintf(3) system call.

EXAMPLE
       The explain_vasprintf_or_die function is	intended to be used in a fash-
       ion similar to the following example:
	      int result = explain_vasprintf_or_die(data, format, ap);

SEE ALSO
       vasprintf(3)
	       print to	allocated string

       explain_vasprintf(3)
	       explain vasprintf(3) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2013 Peter	Miller

						   explain_vasprintf_or_die(3)

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

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