VFWSCANF
Section: POSIX Programmer's Manual (3P)
Updated: 2003
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PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
NAME
vfwscanf, vswscanf, vwscanf - wide-character formatted input of a
stdarg argument list
SYNOPSIS
#include <stdarg.h>
#include <stdio.h>
#include <wchar.h>
int vfwscanf(FILE *restrict stream, const wchar_t *restrict
format,
va_list arg);
int vswscanf(const wchar_t *restrict ws, const wchar_t
*restrict format,
va_list arg);
int vwscanf(const wchar_t *restrict format, va_list
arg);
DESCRIPTION
The vfwscanf(), vswscanf(), and vwscanf() functions
shall be equivalent to the fwscanf(), swscanf(), and wscanf()
functions, respectively, except that instead of being called with
a variable number
of arguments, they are called with an argument list as defined in
the <stdarg.h> header. These functions shall not invoke the
va_end macro. As these
functions invoke the va_arg macro, the value of ap after
the return is unspecified.
RETURN VALUE
Refer to fwscanf().
ERRORS
Refer to fwscanf().
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
fwscanf(), 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 .