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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-15 19:09:58 +08:00
Jeff Johnston 3bf091476a 2004-11-23 Jeff Johnston <jjohnstn@redhat.com>
* libc/include/stdio.h: Add new iprintf and iscanf variants.  Also
        do some reordering.
        * libc/machine/powerpc/vfscanf.c: Remove __sccl function.
        * libc/stdio/Makefile.am: Add support for new iprintf and iscanf
        family functions.
        * libc/stdio/Makefile.in: Regenerated.
        * libc/stdio/fiprintf.c: Remove doc to siprintf.c.
        * libc/stdio/iprintf.c: Ditto.
        * libc/stdio/local.h (__svfiscanf_r): New prototype.
        * libc/stdio/siprintf.c: Add docs for various iprintf family functions.
        * libc/stdio/sniprintf.c: Move docs to siprintf.c.
        * libc/stdio/stdio.tex: Add new functions.
        * libc/stdio/vfscanf.c: Split out __sccl function to separate
        file and add special name defines so this file can be used
        to build vfiscanf.o.
        * libc/stdio/asiprintf.c: New file.
        * libc/stdio/fiscanf.c: Ditto.
        * libc/stdio/iscanf.c: Ditto.
        * libc/stdio/sccl.c: Ditto.
        * libc/stdio/siscanf.c: Ditto.
        * libc/stdio/vasiprintf.c: Ditto.
        * libc/stdio/viprintf.c: Ditto.
        * libc/stdio/viscanf.c: Ditto.
        * libc/stdio/vsiprintf.c: Ditto.
        * libc/stdio/vsiscanf.c: Ditto.
        * libc/stdio/vsniprintf.c: Ditto.
2004-11-24 00:45:41 +00:00

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3.0 KiB
C

/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/*
FUNCTION
<<vsniprintf>>---write formatted output (integer only)
INDEX
vsniprintf
ANSI_SYNOPSIS
#include <stdio.h>
int vsniprintf(char *<[str]>, size_t <[size]>, const char *<[fmt]>, va_list <[list]>);
TRAD_SYNOPSIS
#include <stdio.h>
int vsnprintf(<[str]>, <[size]>, <[fmt]>, <[list]>)
char *<[str]>;
size_t <[size]>;
char *<[fmt]>;
va_list <[list]>;
DESCRIPTION
<<vsniprintf>> is a restricted version of <<vsnprintf>>: it has the same
arguments and behavior, save that it cannot perform any floating-point
formatting: the <<f>>, <<g>>, <<G>>, <<e>>, and <<F>> type specifiers
are not recognized.
RETURNS
<<vsniprintf>> returns the number of bytes in the output string,
save that the concluding <<NULL>> is not counted.
<<vsniprintf>> returns when the end of the format string is
encountered.
PORTABILITY
<<vsniprintf>> is not required by ANSI C.
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "%W% (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#include <limits.h>
#ifdef _HAVE_STDC
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#ifndef _REENT_ONLY
int
_DEFUN(vsniprintf, (str, size, fmt, ap),
char *str _AND
size_t size _AND
_CONST char *fmt _AND
va_list ap)
{
int ret;
FILE f;
f._flags = __SWR | __SSTR;
f._bf._base = f._p = (unsigned char *) str;
f._bf._size = f._w = (size > 0 ? size - 1 : 0);
f._file = -1; /* No file. */
ret = _vfiprintf_r (_REENT, &f, fmt, ap);
if (size > 0)
*f._p = 0;
return ret;
}
#endif /* !_REENT_ONLY */
int
_DEFUN(_vsniprintf_r, (ptr, str, size, fmt, ap),
struct _reent *ptr _AND
char *str _AND
size_t size _AND
_CONST char *fmt _AND
va_list ap)
{
int ret;
FILE f;
f._flags = __SWR | __SSTR;
f._bf._base = f._p = (unsigned char *) str;
f._bf._size = f._w = (size > 0 ? size - 1 : 0);
f._file = -1; /* No file. */
ret = _vfiprintf_r (ptr, &f, fmt, ap);
if (size > 0)
*f._p = 0;
return ret;
}