00001 /*- 00002 * Copyright (c) 1990, 1993 00003 * The Regents of the University of California. All rights reserved. 00004 * 00005 * This code is derived from software contributed to Berkeley by 00006 * Chris Torek. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 3. All advertising materials mentioning features or use of this software 00017 * must display the following acknowledgement: 00018 * This product includes software developed by the University of 00019 * California, Berkeley and its contributors. 00020 * 4. Neither the name of the University nor the names of its contributors 00021 * may be used to endorse or promote products derived from this software 00022 * without specific prior written permission. 00023 * 00024 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00025 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00026 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00027 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00028 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00029 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00030 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00031 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00032 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00033 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00034 * SUCH DAMAGE. 00035 * 00036 * @(#)floatio.h 8.1 (Berkeley) 6/4/93 00037 * $FreeBSD: src/lib/libc/stdio/floatio.h,v 1.5 2004/01/18 08:28:47 das Exp $ 00038 */ 00039 00040 /* 00041 * Floating point scanf/printf (input/output) definitions. 00042 */ 00043 00044 /* 00045 * MAXEXPDIG is the maximum number of decimal digits needed to store a 00046 * floating point exponent in the largest supported format. It should 00047 * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point 00048 * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it 00049 * is presently never greater than 5 in practice, we fudge it. 00050 */ 00051 #define MAXEXPDIG 6 00052 #if LDBL_MAX_EXP > 999999 00053 #error "floating point buffers too small" 00054 #endif 00055 00056 char *__hdtoa(double, const char *, int, int *, int *, char **); 00057 char *__hldtoa(long double, const char *, int, int *, int *, char **); 00058 char *__ldtoa(long double *, int, int, int *, int *, char **);