2001-03-12 01:04:52 +01:00
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/*
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* IBM Accurate Mathematical Library
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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2001-03-12 08:57:09 +01:00
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* the Free Software Foundation; either version 2 of the License, or
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2001-03-12 01:04:52 +01:00
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* (at your option) any later version.
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2001-03-12 08:57:09 +01:00
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*
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2001-03-12 01:04:52 +01:00
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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2001-03-12 08:57:09 +01:00
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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2001-03-12 01:04:52 +01:00
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*/
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/************************************************************************/
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/* MODULE_NAME: mpa.h */
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/* */
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/* FUNCTIONS: */
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/* mcr */
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/* acr */
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/* cr */
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/* cpy */
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/* cpymn */
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/* mp_dbl */
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/* dbl_mp */
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/* add */
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/* sub */
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/* mul */
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/* inv */
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/* dvd */
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/* */
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/* Arithmetic functions for multiple precision numbers. */
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/* Common types and definition */
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/************************************************************************/
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typedef struct {/* This structure holds the details of a multi-precision */
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int e; /* floating point number, x: d[0] holds its sign (-1,0 or 1) */
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double d[40]; /* e holds its exponent (...,-2,-1,0,1,2,...) and */
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} mp_no; /* d[1]...d[p] hold its mantissa digits. The value of x is, */
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/* x = d[1]*r**(e-1) + d[2]*r**(e-2) + ... + d[p]*r**(e-p). */
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/* Here r = 2**24, 0 <= d[i] < r and 1 <= p <= 32. */
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/* p is a global variable. A multi-precision number is */
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/* always normalized. Namely, d[1] > 0. An exception is */
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/* a zero which is characterized by d[0] = 0. The terms */
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/* d[p+1], d[p+2], ... of a none zero number have no */
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/* significance and so are the terms e, d[1],d[2],... */
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/* of a zero. */
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typedef union { int i[2]; double d; } number;
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#define X x->d
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#define Y y->d
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#define Z z->d
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#define EX x->e
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#define EY y->e
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#define EZ z->e
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#define MAX(x,y) ((x) < (y) ? (y) : (x))
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#define MIN(x,y) ((x) < (y) ? (x) : (y))
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#define ABS(x) ((x) < 0 ? -(x) : (x))
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2001-03-13 03:01:34 +01:00
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int __acr(const mp_no *, const mp_no *, int);
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int __cr(const mp_no *, const mp_no *, int);
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void __cpy(const mp_no *, mp_no *, int);
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void __cpymn(const mp_no *, int, mp_no *, int);
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2001-03-12 08:57:09 +01:00
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void __mp_dbl(const mp_no *, double *, int);
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2001-03-13 03:01:34 +01:00
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void __dbl_mp(double, mp_no *, int);
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void __add(const mp_no *, const mp_no *, mp_no *, int);
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void __sub(const mp_no *, const mp_no *, mp_no *, int);
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void __mul(const mp_no *, const mp_no *, mp_no *, int);
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void __inv(const mp_no *, mp_no *, int);
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void __dvd(const mp_no *, const mp_no *, mp_no *, int);
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2001-10-29 18:24:29 +01:00
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extern void __mpatan (mp_no *, mp_no *, int);
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extern void __mpatan2 (mp_no *, mp_no *, mp_no *, int);
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extern void __mpsqrt (mp_no *, mp_no *, int);
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extern void __mpexp (mp_no *, mp_no *__y, int);
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extern void __c32 (mp_no *, mp_no *, mp_no *, int);
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extern int __mpranred (double, mp_no *, int);
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