/*	$OpenBSD: floatio.h,v 1.4 2008/09/07 20:36:08 martynas Exp $	*/

/*-

 * 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.

 */

/*

 * Floating point scanf/printf (input/output) definitions.

 */

/* 11-bit exponent (VAX G floating point) is 308 decimal digits */

#define	MAXEXP		308

/* 128 bit fraction takes up 39 decimal digits; max reasonable precision */

#define	MAXFRACT	39

/*

 * MAXEXPDIG is the maximum number of decimal digits needed to store a

 * floating point exponent in the largest supported format.  It should

 * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point

 * conversions are supported, ceil(log10(LDBL_MAX_EXP)).  But since it

 * is presently never greater than 5 in practice, we fudge it.

 */

#define	MAXEXPDIG	6

#if LDBL_MAX_EXP > 999999

#error "floating point buffers too small"

#endif

char *__hdtoa(double, const char *, int, int *, int *, char **);

char *__hldtoa(long double, const char *, int, int *, int *, char **);

char *__ldtoa(long double *, int, int, int *, int *, char **);