/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Flags used during conversion.
 */
#define	ALT		0x001		/* alternate form */
#define	LADJUST		0x004		/* left adjustment */
#define	LONGDBL		0x008		/* long double */
#define	LONGINT		0x010		/* long integer */
#define	LLONGINT	0x020		/* long long integer */
#define	SHORTINT	0x040		/* short integer */
#define	ZEROPAD		0x080		/* zero (as opposed to blank) pad */
#define	FPT		0x100		/* Floating point number */
#define	GROUPING	0x200		/* use grouping ("'" flag) */
					/* C99 additional size modifiers: */
#define	SIZET		0x400		/* size_t */
#define	PTRDIFFT	0x800		/* ptrdiff_t */
#define	INTMAXT		0x1000		/* intmax_t */
#define	CHARINT		0x2000		/* print char using int format */

/*
 * Macros for converting digits to letters and vice versa
 */
#define	to_digit(c)	((c) - '0')
#define is_digit(c)	((unsigned)to_digit(c) <= 9)
#define	to_char(n)	((n) + '0')

/* Size of the static argument table. */
#define STATIC_ARG_TBL_SIZE 8

union arg {
	int	intarg;
	u_int	uintarg;
	long	longarg;
	u_long	ulongarg;
	long long longlongarg;
	unsigned long long ulonglongarg;
	ptrdiff_t ptrdiffarg;
	size_t	sizearg;
	intmax_t intmaxarg;
	uintmax_t uintmaxarg;
	void	*pvoidarg;
	char	*pchararg;
	signed char *pschararg;
	short	*pshortarg;
	int	*pintarg;
	long	*plongarg;
	long long *plonglongarg;
	ptrdiff_t *pptrdiffarg;
	ssize_t	*pssizearg;
	intmax_t *pintmaxarg;
#ifndef NO_FLOATING_POINT
	double	doublearg;
	long double longdoublearg;
#endif
	wint_t	wintarg;
	wchar_t	*pwchararg;
};

/* Handle positional parameters. */
int	__find_arguments(const char *, va_list, union arg **);
int	__find_warguments(const wchar_t *, va_list, union arg **);