VFWPRINTF(3)

NAME
vfwprintf, vwprintf, vswprintf, _vfwprintf_r, _vwprintf_r, _vswprintf_r - wide character format argument list

SYNOPSIS

#include <stdio.h>

#include <stdarg.h>

#include <wchar.h>

int vwprintf(const wchar_t *__restrict fmt, va_list list);

int vfwprintf(FILE *__restrict fp, const wchar_t *__restrict fmt, va_list list);

int vswprintf(wchar_t * __restrict str, size_t size, const wchar_t *__ restrict fmt, va_list list);

int _vwprintf_r(struct _reent *reent, const wchar_t *fmt, va_list list);

int _vfwprintf_r(struct _reent *reent, FILE *fp, const wchar_t *fmt, va_list list);

int _vswprintf_r(struct _reent *reent, wchar_t *str, size_t size, const wchar_t *fmt, va_list list);

DESCRIPTION

vwprintf, vfwprintf and vswprintf are (respectively) variants of wprintf, fwprintf and swprintf. They differ only in allowing their caller to pass the variable argument list as a va_list object (initialized by va_start) rather than directly accepting a variable number of arguments. The caller is responsible for calling va_end.

_vwprintf_r, _vfwprintf_r and _vswprintf_r are reentrant versions of the above.

RETURNS

The return values are consistent with the corresponding functions.

PORTABILITY

POSIX-1.2008 with extensions; C99 (compliant except for POSIX extensions).

Supporting OS subroutines required: close, fstat, isatty, lseek, read, sbrk, write.

SEE ALSO

wprintf, fwprintf and swprintf.

AUTHORS

Steve Chamberlain
    Author.

Roland Pesch
    Author.

Red Hat Support

Jeff Johnston
    Author.

COPYRIGHT

This file documents the ANSI C library.

Copyright (C) 1992, 1993, 1994-2014 Red Hat, Inc.

libc includes software developed by the University of California, Berkeley and its contributors.

libc includes software developed by Martin Jackson, Graham Haley and Steve Chamberlain of Tadpole Technology and released to Cygnus.

libc uses floating-point conversion software developed at AT&T, which includes this copyright information:

The author of this software is David M. Gay.

Copyright (c) 1991 by AT&T.

Permission to use, copy, modify, and distribute this software for any purpose without fee is hereby granted, provided that this entire notice is included in all copies of any software which is or includes a copy or modification of this software and in all copies of the supporting documentation for such software.

THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR AT&T MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.

Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.

Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, subject to the terms of the GNU General Public License, which includes the provision that the entire resulting derived work is distributed under the terms of a permission notice identical to this one.

Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions.