1 | /* |
2 | * IBM Accurate Mathematical Library |
3 | * Written by International Business Machines Corp. |
4 | * Copyright (C) 2001-2018 Free Software Foundation, Inc. |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU Lesser General Public License as published by |
8 | * the Free Software Foundation; either version 2.1 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public License |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | /******************************************************************/ |
21 | /* */ |
22 | /* MODULE_NAME:uexp.h */ |
23 | /* */ |
24 | /* common data and variables prototype and definition */ |
25 | /******************************************************************/ |
26 | |
27 | #ifndef UEXP_H |
28 | #define UEXP_H |
29 | |
30 | #include "mydefs.h" |
31 | |
32 | const static double zero = 0.0, hhuge = 1.0e300, tiny = 1.0e-300, |
33 | err_0 = 1.000014, err_1 = 0.000016; |
34 | const static int4 bigint = 0x40862002, |
35 | badint = 0x40876000,smallint = 0x3C8fffff; |
36 | const static int4 hugeint = 0x7FFFFFFF, infint = 0x7ff00000; |
37 | |
38 | #ifdef BIG_ENDI |
39 | const static mynumber inf = {{0x7FF00000, 0}}; /* inf */ |
40 | const static mynumber t256 = {{0x4ff00000, 0}}; /* 2^256 */ |
41 | |
42 | const static mynumber ln_two1 = {{0x3FE62E42, 0xFEFA3800}};/*0.69314718055989033 */ |
43 | const static mynumber ln_two2 = {{0x3D2EF357, 0x93C76730}};/*5.4979230187083712e-14*/ |
44 | const static mynumber log2e = {{0x3FF71547, 0x652B82FE}};/* 1.4426950408889634 */ |
45 | |
46 | const static mynumber p2 = {{0x3FE00000, 0x000004DC}};/* 0.50000000000013811 */ |
47 | const static mynumber p3 = {{0x3FC55555, 0x55555A0F}};/* 0.16666666666670024 */ |
48 | |
49 | const static mynumber three33 = {{0x42180000, 0}}; /* 25769803776 */ |
50 | const static mynumber three51 = {{0x43380000, 0}}; /* 6755399441055744 */ |
51 | |
52 | #else |
53 | #ifdef LITTLE_ENDI |
54 | const static mynumber inf = {{0, 0x7FF00000}}; /* inf */ |
55 | const static mynumber t256 = {{0, 0x4ff00000}}; /* 2^256 */ |
56 | |
57 | const static mynumber ln_two1 = {{0xFEFA3800, 0x3FE62E42}};/*0.69314718055989033 */ |
58 | const static mynumber ln_two2 = {{0x93C76730, 0x3D2EF357}};/*5.4979230187083712e-14*/ |
59 | const static mynumber log2e = {{0x652B82FE, 0x3FF71547}};/* 1.4426950408889634 */ |
60 | |
61 | const static mynumber p2 = {{0x000004DC, 0x3FE00000}};/* 0.50000000000013811 */ |
62 | const static mynumber p3 = {{0x55555A0F, 0x3FC55555}};/* 0.16666666666670024 */ |
63 | |
64 | const static mynumber three33 = {{0, 0x42180000}}; /* 25769803776 */ |
65 | const static mynumber three51 = {{0, 0x43380000}}; /* 6755399441055744 */ |
66 | |
67 | #endif |
68 | #endif |
69 | #endif |
70 | |