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, obtained 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 returns 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 fashion 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 1.4
       Copyright (C) 2013 Peter Miller

                                                                      explain_vasprintf_or_die(3)