156893Sfenner/*- 256893Sfenner * Copyright (c) 1990, 1993 356893Sfenner * The Regents of the University of California. All rights reserved. 456893Sfenner * 556893Sfenner * This code is derived from software contributed to Berkeley by 656893Sfenner * Chris Torek. 756893Sfenner * 856893Sfenner * Redistribution and use in source and binary forms, with or without 956893Sfenner * modification, are permitted provided that the following conditions 1056893Sfenner * are met: 1156893Sfenner * 1. Redistributions of source code must retain the above copyright 1256893Sfenner * notice, this list of conditions and the following disclaimer. 1356893Sfenner * 2. Redistributions in binary form must reproduce the above copyright 1456893Sfenner * notice, this list of conditions and the following disclaimer in the 1556893Sfenner * documentation and/or other materials provided with the distribution. 1656893Sfenner * 4. Neither the name of the University nor the names of its contributors 1756893Sfenner * may be used to endorse or promote products derived from this software 1856893Sfenner * without specific prior written permission. 1956893Sfenner * 2056893Sfenner * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2175115Sfenner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2256893Sfenner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2356893Sfenner * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24276788Sdelphij * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2556893Sfenner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2656893Sfenner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2756893Sfenner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2856893Sfenner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29127668Sbms * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30127668Sbms * SUCH DAMAGE. 3156893Sfenner * 32111726Sfenner * @(#)floatio.h 8.1 (Berkeley) 6/4/93 3356893Sfenner * $FreeBSD: releng/11.0/lib/libc/stdio/floatio.h 165903 2007-01-09 00:28:16Z imp $ 34276788Sdelphij */ 35276788Sdelphij 36276788Sdelphij/* 37276788Sdelphij * Floating point scanf/printf (input/output) definitions. 38276788Sdelphij */ 3956893Sfenner 40276788Sdelphij/* 41276788Sdelphij * MAXEXPDIG is the maximum number of decimal digits needed to store a 42276788Sdelphij * floating point exponent in the largest supported format. It should 43276788Sdelphij * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point 44276788Sdelphij * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it 45276788Sdelphij * is presently never greater than 5 in practice, we fudge it. 46276788Sdelphij */ 47276788Sdelphij#define MAXEXPDIG 6 48276788Sdelphij#if LDBL_MAX_EXP > 999999 49276788Sdelphij#error "floating point buffers too small" 50276788Sdelphij#endif 51276788Sdelphij 52276788Sdelphijchar *__hdtoa(double, const char *, int, int *, int *, char **); 53276788Sdelphijchar *__hldtoa(long double, const char *, int, int *, int *, char **); 54276788Sdelphijchar *__ldtoa(long double *, int, int, int *, int *, char **); 55276788Sdelphij