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1 | /* $NetBSD: floatio.h,v 1.5 2005/05/14 23:51:02 christos Exp $ */\r | |
2 | \r | |
3 | /*-\r | |
4 | * Copyright (c) 1990, 1993\r | |
5 | * The Regents of the University of California. All rights reserved.\r | |
6 | *\r | |
7 | * This code is derived from software contributed to Berkeley by\r | |
8 | * Chris Torek.\r | |
9 | *\r | |
10 | * Redistribution and use in source and binary forms, with or without\r | |
11 | * modification, are permitted provided that the following conditions\r | |
12 | * are met:\r | |
13 | * 1. Redistributions of source code must retain the above copyright\r | |
14 | * notice, this list of conditions and the following disclaimer.\r | |
15 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
16 | * notice, this list of conditions and the following disclaimer in the\r | |
17 | * documentation and/or other materials provided with the distribution.\r | |
18 | * 3. Neither the name of the University nor the names of its contributors\r | |
19 | * may be used to endorse or promote products derived from this software\r | |
20 | * without specific prior written permission.\r | |
21 | *\r | |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r | |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r | |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r | |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r | |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r | |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r | |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r | |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r | |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r | |
32 | * SUCH DAMAGE.\r | |
33 | *\r | |
34 | * @(#)floatio.h 8.1 (Berkeley) 6/4/93\r | |
35 | */\r | |
36 | \r | |
37 | /*\r | |
38 | * Floating point scanf/printf (input/output) definitions.\r | |
39 | */\r | |
40 | \r | |
41 | /* 11-bit exponent (VAX G floating point) is 308 decimal digits */\r | |
42 | #define MAXEXP 308\r | |
43 | /* 128 bit fraction takes up 39 decimal digits; max reasonable precision */\r | |
44 | #define MAXFRACT 39\r | |
45 | /* \r | |
46 | * MAXEXPDIG is the maximum number of decimal digits needed to store a\r | |
47 | * floating point exponent in the largest supported format. It should\r | |
48 | * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point \r | |
49 | * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it\r | |
50 | * is presently never greater than 5 in practice, we fudge it.\r | |
51 | */ \r | |
52 | #define MAXEXPDIG 6\r | |
53 | #if LDBL_MAX_EXP > 999999\r | |
54 | #error "floating point buffers too small"\r | |
55 | #endif \r |