VIPRINTF(3)

NAME
viprintf, vfiprintf, vsiprintf, vsniprintf, vasiprintf, vasniprintf, _viprintf_r, _vfiprintf_r, _vsiprintf_r, _vsniprintf_r, _vasiprintf_r, _vasniprintf_r - format argument list (integer only)

SYNOPSIS

#include <stdio.h>

#include <stdarg.h>

int viprintf(const char *fmt, va_list list);

int vfiprintf(FILE *fp, const char *fmt, va_list list);

int vsiprintf(char *str, const char *fmt, va_list list);

int vsniprintf(char *str, size_t size, const char *fmt, va_list list);

int vasiprintf(char **strp, const char *fmt, va_list list);

char *vasniprintf(char *str, size_t *size, const char *fmt, va_list list);

int _viprintf_r(struct _reent *reent, const char *fmt, va_list list);

int _vfiprintf_r(struct _reent *reent, FILE *fp, const char *fmt, va_list list);

int _vsiprintf_r(struct _reent *reent, char *str, const char *fmt, va_list list);

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

int _vasiprintf_r(struct _reent *reent, char **str, const char *fmt, va_list list);

char *_vasniprintf_r(struct _reent *reent, char *str, size_t *size, const char *fmt, va_list list);

DESCRIPTION

viprintf, vfiprintf, vasiprintf, vsiprintf, vsniprintf, and vasniprintf are (respectively) variants of iprintf, fiprintf, asiprintf, siprintf, sniprintf, and asniprintf. 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.

_viprintf_r, _vfiprintf_r, _vasiprintf_r, _vsiprintf_r, _vsniprintf_r, and _vasniprintf_r are reentrant versions of the above.

RETURNS

The return values are consistent with the corresponding functions:

PORTABILITY

All of these functions are newlib extensions.

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

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.