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VFWSCANF

VFWSCANF

Section: POSIX Programmer's Manual (P) Updated: 2003
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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 .


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
EXAMPLES
APPLICATION USAGE
RATIONALE
FUTURE DIRECTIONS
SEE ALSO
COPYRIGHT

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