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Diffstat (limited to 'sysdeps/ieee754/dbl-64/uexp.h')
-rw-r--r-- | sysdeps/ieee754/dbl-64/uexp.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/uexp.h b/sysdeps/ieee754/dbl-64/uexp.h new file mode 100644 index 0000000000..973aae7535 --- /dev/null +++ b/sysdeps/ieee754/dbl-64/uexp.h @@ -0,0 +1,69 @@ + +/* + * IBM Accurate Mathematical Library + * Copyright (c) International Business Machines Corp., 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +/******************************************************************/ +/* */ +/* MODULE_NAME:uexp.h */ +/* */ +/* common data and variables prototype and definition */ +/******************************************************************/ + +#ifndef UEXP_H +#define UEXP_H + +#include "mydefs.h" + +const static double one = 1.0, zero = 0.0, hhuge = 1.0e300, tiny = 1.0e-300, +err_0 = 1.000014, err_1 = 0.000016; +const static int4 bigint = 0x40862002, + badint = 0x40876000,smallint = 0x3C8fffff; +const static int4 hugeint = 0x7FFFFFFF, infint = 0x7ff00000; + +#ifdef BIG_ENDI +const static mynumber inf = {0x7FF00000, 0}; /* inf */ +const static mynumber t256 = {0x4ff00000, 0}; /* 2^256 */ + +const static mynumber ln_two1 = { 0x3FE62E42, 0xFEFA3800 };/*0.69314718055989033 */ +const static mynumber ln_two2 = { 0x3D2EF357, 0x93C76730 };/*5.4979230187083712e-14*/ +const static mynumber log2e = { 0x3FF71547, 0x652B82FE };/* 1.4426950408889634 */ + +const static mynumber p2 = { 0x3FE00000, 0x000004DC };/* 0.50000000000013811 */ +const static mynumber p3 = { 0x3FC55555, 0x55555A0F };/* 0.16666666666670024 */ + +const static mynumber three33 = { 0x42180000, 0 }; /* 25769803776 */ +const static mynumber three51 = { 0x43380000, 0 }; /* 6755399441055744 */ + +#else +#ifdef LITTLE_ENDI + const static mynumber inf = {0, 0x7FF00000}; /* inf */ + const static mynumber t256 = {0, 0x4ff00000}; /* 2^256 */ + + const static mynumber ln_two1 = { 0xFEFA3800, 0x3FE62E42 };/*0.69314718055989033 */ + const static mynumber ln_two2 = { 0x93C76730, 0x3D2EF357 };/*5.4979230187083712e-14*/ + const static mynumber log2e = { 0x652B82FE, 0x3FF71547 };/* 1.4426950408889634 */ + + const static mynumber p2 = { 0x000004DC, 0x3FE00000 };/* 0.50000000000013811 */ + const static mynumber p3 = { 0x55555A0F, 0x3FC55555 };/* 0.16666666666670024 */ + + const static mynumber three33 = { 0, 0x42180000 }; /* 25769803776 */ + const static mynumber three51 = { 0, 0x43380000 }; /* 6755399441055744 */ + +#endif +#endif +#endif |