NAME

       vfwprintf, vswprintf, vwprintf - wide-character formatted output of a stdarg argument list

SYNOPSIS

       #include <stdarg.h>
       #include <stdio.h>
       #include <wchar.h>

       int vfwprintf(FILE *restrict stream, const wchar_t *restrict format,
              va_list arg);
       int vswprintf(wchar_t *restrict ws, size_t n,
              const wchar_t *restrict format, va_list arg);
       int vwprintf(const wchar_t *restrict format, va_list arg);

DESCRIPTION

       The  vfwprintf(), vswprintf(), and vwprintf() functions shall be equivalent to fwprintf(),
       swprintf(), and wprintf() respectively,  except  that  instead  of  being  called  with  a
       variable  number  of  arguments,  they  are  called  with  an  argument list as defined by
       <stdarg.h>.

       These functions shall not invoke the va_end macro. However, as these functions  do  invoke
       the va_arg macro, the value of ap after the return is unspecified.

RETURN VALUE

       Refer to fwprintf() .

ERRORS

       Refer to fwprintf() .

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       Applications using these functions should call va_end(ap) afterwards to clean up.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       fwprintf()  ,  the Base Definitions volume of IEEE Std 1003.1-2001, <stdarg.h>, <stdio.h>,
       <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1,  2003  Edition,  Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003  by
       the  Institute  of  Electrical  and  Electronics Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .