| | 1 | /*- |
| | 2 | * Copyright (c) 1990, 1993 |
| | 3 | * The Regents of the University of California. All rights reserved. |
| | 4 | * |
| | 5 | * This code is derived from software contributed to Berkeley by |
| | 6 | * Chris Torek. |
| | 7 | * |
| | 8 | * Redistribution and use in source and binary forms, with or without |
| | 9 | * modification, are permitted provided that the following conditions |
| | 10 | * are met: |
| | 11 | * 1. Redistributions of source code must retain the above copyright |
| | 12 | * notice, this list of conditions and the following disclaimer. |
| | 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 14 | * notice, this list of conditions and the following disclaimer in the |
| | 15 | * documentation and/or other materials provided with the distribution. |
| | 16 | * 4. Neither the name of the University nor the names of its contributors |
| | 17 | * may be used to endorse or promote products derived from this software |
| | 18 | * without specific prior written permission. |
| | 19 | * |
| | 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 30 | * SUCH DAMAGE. |
| | 31 | * |
| | 32 | * @(#)floatio.h 8.1 (Berkeley) 6/4/93 |
| | 33 | * $FreeBSD: src/lib/libc/stdio/floatio.h,v 1.6 2007/01/09 00:28:06 imp Exp $ |
| | 34 | */ |
| | 35 | |
| | 36 | /* |
| | 37 | * Floating point scanf/printf (input/output) definitions. |
| | 38 | */ |
| | 39 | |
| | 40 | /* |
| | 41 | * MAXEXPDIG is the maximum number of decimal digits needed to store a |
| | 42 | * floating point exponent in the largest supported format. It should |
| | 43 | * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point |
| | 44 | * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it |
| | 45 | * is presently never greater than 5 in practice, we fudge it. |
| | 46 | */ |
| | 47 | #define MAXEXPDIG 6 |
| | 48 | #if LDBL_MAX_EXP > 999999 |
| | 49 | #error "floating point buffers too small" |
| | 50 | #endif |
| | 51 | |
| | 52 | char *__hdtoa(double, const char *, int, int *, int *, char **); |
| | 53 | char *__hldtoa(long double, const char *, int, int *, int *, char **); |
| | 54 | char *__ldtoa(long double *, int, int, int *, int *, char **); |
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