centos man page for vswprintf

VFWPRINTF(3P)						     POSIX Programmer's Manual						     VFWPRINTF(3P)

PROLOG
       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

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 Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003							     VFWPRINTF(3P)