| /* $NetBSD: floatio.h,v 1.5 2005/05/14 23:51:02 christos 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. | |
| * | |
| * @(#)floatio.h 8.1 (Berkeley) 6/4/93 | |
| */ | |
| /* | |
| * 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 |