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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
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* |
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* ***** BEGIN LICENSE BLOCK ***** |
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
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* |
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* The contents of this file are subject to the Mozilla Public License Version |
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* 1.1 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* http://www.mozilla.org/MPL/ |
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* |
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* Software distributed under the License is distributed on an "AS IS" basis, |
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
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* for the specific language governing rights and limitations under the |
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* License. |
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* |
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* The Original Code is Mozilla Communicator client code, released |
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* March 31, 1998. |
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* |
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* The Initial Developer of the Original Code is |
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* Sun Microsystems, Inc. |
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* Portions created by the Initial Developer are Copyright (C) 1998 |
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* the Initial Developer. All Rights Reserved. |
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* |
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* Contributor(s): |
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* |
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* Alternatively, the contents of this file may be used under the terms of |
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* either of the GNU General Public License Version 2 or later (the "GPL"), |
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
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* in which case the provisions of the GPL or the LGPL are applicable instead |
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* of those above. If you wish to allow use of your version of this file only |
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* under the terms of either the GPL or the LGPL, and not to allow others to |
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* use your version of this file under the terms of the MPL, indicate your |
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* decision by deleting the provisions above and replace them with the notice |
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* and other provisions required by the GPL or the LGPL. If you do not delete |
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* the provisions above, a recipient may use your version of this file under |
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* the terms of any one of the MPL, the GPL or the LGPL. |
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* |
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* ***** END LICENSE BLOCK ***** */ |
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|
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/* @(#)k_standard.c 1.3 95/01/18 */ |
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/* |
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* ==================================================== |
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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* |
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* Developed at SunSoft, a Sun Microsystems, Inc. business. |
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* Permission to use, copy, modify, and distribute this |
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* software is freely granted, provided that this notice |
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* is preserved. |
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* ==================================================== |
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* |
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*/ |
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|
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#include "fdlibm.h" |
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|
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/* XXX ugly hack to get msvc to link without error. */ |
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#if _LIB_VERSION == _IEEE_ && !(defined(DARWIN) || defined(XP_MACOSX)) |
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int errno; |
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# define EDOM 0 |
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# define ERANGE 0 |
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#else |
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# include <errno.h> |
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#endif |
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|
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|
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#ifndef _USE_WRITE |
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#include <stdio.h> /* fputs(), stderr */ |
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#define WRITE2(u,v) fputs(u, stderr) |
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#else /* !defined(_USE_WRITE) */ |
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#include <unistd.h> /* write */ |
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#define WRITE2(u,v) write(2, u, v) |
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#undef fflush |
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#endif /* !defined(_USE_WRITE) */ |
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|
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static double zero = 0.0; /* used as const */ |
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|
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/* |
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* Standard conformance (non-IEEE) on exception cases. |
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* Mapping: |
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* 1 -- acos(|x|>1) |
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* 2 -- asin(|x|>1) |
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* 3 -- atan2(+-0,+-0) |
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* 4 -- hypot overflow |
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* 5 -- cosh overflow |
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* 6 -- exp overflow |
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* 7 -- exp underflow |
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* 8 -- y0(0) |
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* 9 -- y0(-ve) |
| 88 |
* 10-- y1(0) |
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* 11-- y1(-ve) |
| 90 |
* 12-- yn(0) |
| 91 |
* 13-- yn(-ve) |
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* 14-- lgamma(finite) overflow |
| 93 |
* 15-- lgamma(-integer) |
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* 16-- log(0) |
| 95 |
* 17-- log(x<0) |
| 96 |
* 18-- log10(0) |
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* 19-- log10(x<0) |
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* 20-- pow(0.0,0.0) |
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* 21-- pow(x,y) overflow |
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* 22-- pow(x,y) underflow |
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* 23-- pow(0,negative) |
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* 24-- pow(neg,non-integral) |
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* 25-- sinh(finite) overflow |
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* 26-- sqrt(negative) |
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* 27-- fmod(x,0) |
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* 28-- remainder(x,0) |
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* 29-- acosh(x<1) |
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* 30-- atanh(|x|>1) |
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* 31-- atanh(|x|=1) |
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* 32-- scalb overflow |
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* 33-- scalb underflow |
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* 34-- j0(|x|>X_TLOSS) |
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* 35-- y0(x>X_TLOSS) |
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* 36-- j1(|x|>X_TLOSS) |
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* 37-- y1(x>X_TLOSS) |
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* 38-- jn(|x|>X_TLOSS, n) |
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* 39-- yn(x>X_TLOSS, n) |
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* 40-- gamma(finite) overflow |
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* 41-- gamma(-integer) |
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* 42-- pow(NaN,0.0) |
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*/ |
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|
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|
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#ifdef __STDC__ |
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double __kernel_standard(double x, double y, int type, int *err) |
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#else |
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double __kernel_standard(x,y,type, err) |
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double x,y; int type;int *err; |
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#endif |
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{ |
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struct exception exc; |
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#ifndef HUGE_VAL /* this is the only routine that uses HUGE_VAL */ |
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#define HUGE_VAL inf |
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double inf = 0.0; |
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fd_twoints u; |
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|
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u.d = inf; |
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__HI(u) = 0x7ff00000; /* set inf to infinite */ |
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inf = u.d; |
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#endif |
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|
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*err = 0; |
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|
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#ifdef _USE_WRITE |
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(void) fflush(stdout); |
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#endif |
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exc.arg1 = x; |
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exc.arg2 = y; |
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switch(type) { |
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case 1: |
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/* acos(|x|>1) */ |
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exc.type = DOMAIN; |
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exc.name = "acos"; |
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exc.retval = zero; |
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if (_LIB_VERSION == _POSIX_) |
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*err = EDOM; |
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else if (!fd_matherr(&exc)) { |
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if(_LIB_VERSION == _SVID_) { |
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(void) WRITE2("acos: DOMAIN error\n", 19); |
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} |
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*err = EDOM; |
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} |
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break; |
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case 2: |
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/* asin(|x|>1) */ |
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exc.type = DOMAIN; |
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exc.name = "asin"; |
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exc.retval = zero; |
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if(_LIB_VERSION == _POSIX_) |
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*err = EDOM; |
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else if (!fd_matherr(&exc)) { |
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if(_LIB_VERSION == _SVID_) { |
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(void) WRITE2("asin: DOMAIN error\n", 19); |
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} |
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*err = EDOM; |
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} |
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break; |
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case 3: |
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/* atan2(+-0,+-0) */ |
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exc.arg1 = y; |
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exc.arg2 = x; |
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exc.type = DOMAIN; |
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exc.name = "atan2"; |
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exc.retval = zero; |
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if(_LIB_VERSION == _POSIX_) |
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*err = EDOM; |
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else if (!fd_matherr(&exc)) { |
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if(_LIB_VERSION == _SVID_) { |
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(void) WRITE2("atan2: DOMAIN error\n", 20); |
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} |
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*err = EDOM; |
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} |
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break; |
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case 4: |
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/* hypot(finite,finite) overflow */ |
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exc.type = OVERFLOW; |
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exc.name = "hypot"; |
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if (_LIB_VERSION == _SVID_) |
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exc.retval = HUGE; |
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else |
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exc.retval = HUGE_VAL; |
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if (_LIB_VERSION == _POSIX_) |
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*err = ERANGE; |
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else if (!fd_matherr(&exc)) { |
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*err = ERANGE; |
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} |
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break; |
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case 5: |
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/* cosh(finite) overflow */ |
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exc.type = OVERFLOW; |
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exc.name = "cosh"; |
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if (_LIB_VERSION == _SVID_) |
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exc.retval = HUGE; |
| 214 |
else |
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exc.retval = HUGE_VAL; |
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if (_LIB_VERSION == _POSIX_) |
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*err = ERANGE; |
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else if (!fd_matherr(&exc)) { |
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*err = ERANGE; |
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} |
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break; |
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case 6: |
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/* exp(finite) overflow */ |
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exc.type = OVERFLOW; |
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exc.name = "exp"; |
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if (_LIB_VERSION == _SVID_) |
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exc.retval = HUGE; |
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else |
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exc.retval = HUGE_VAL; |
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if (_LIB_VERSION == _POSIX_) |
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*err = ERANGE; |
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else if (!fd_matherr(&exc)) { |
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*err = ERANGE; |
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} |
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break; |
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case 7: |
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/* exp(finite) underflow */ |
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exc.type = UNDERFLOW; |
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exc.name = "exp"; |
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exc.retval = zero; |
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if (_LIB_VERSION == _POSIX_) |
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*err = ERANGE; |
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else if (!fd_matherr(&exc)) { |
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*err = ERANGE; |
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} |
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break; |
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case 8: |
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/* y0(0) = -inf */ |
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exc.type = DOMAIN; /* should be SING for IEEE */ |
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exc.name = "y0"; |
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if (_LIB_VERSION == _SVID_) |
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exc.retval = -HUGE; |
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else |
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exc.retval = -HUGE_VAL; |
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if (_LIB_VERSION == _POSIX_) |
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*err = EDOM; |
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else if (!fd_matherr(&exc)) { |
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if (_LIB_VERSION == _SVID_) { |
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(void) WRITE2("y0: DOMAIN error\n", 17); |
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} |
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*err = EDOM; |
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} |
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break; |
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case 9: |
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/* y0(x<0) = NaN */ |
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exc.type = DOMAIN; |
| 267 |
exc.name = "y0"; |
| 268 |
if (_LIB_VERSION == _SVID_) |
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exc.retval = -HUGE; |
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else |
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exc.retval = -HUGE_VAL; |
| 272 |
if (_LIB_VERSION == _POSIX_) |
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*err = EDOM; |
| 274 |
else if (!fd_matherr(&exc)) { |
| 275 |
if (_LIB_VERSION == _SVID_) { |
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(void) WRITE2("y0: DOMAIN error\n", 17); |
| 277 |
} |
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*err = EDOM; |
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} |
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break; |
| 281 |
case 10: |
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/* y1(0) = -inf */ |
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exc.type = DOMAIN; /* should be SING for IEEE */ |
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exc.name = "y1"; |
| 285 |
if (_LIB_VERSION == _SVID_) |
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exc.retval = -HUGE; |
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else |
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exc.retval = -HUGE_VAL; |
| 289 |
if (_LIB_VERSION == _POSIX_) |
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*err = EDOM; |
| 291 |
else if (!fd_matherr(&exc)) { |
| 292 |
if (_LIB_VERSION == _SVID_) { |
| 293 |
(void) WRITE2("y1: DOMAIN error\n", 17); |
| 294 |
} |
| 295 |
*err = EDOM; |
| 296 |
} |
| 297 |
break; |
| 298 |
case 11: |
| 299 |
/* y1(x<0) = NaN */ |
| 300 |
exc.type = DOMAIN; |
| 301 |
exc.name = "y1"; |
| 302 |
if (_LIB_VERSION == _SVID_) |
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exc.retval = -HUGE; |
| 304 |
else |
| 305 |
exc.retval = -HUGE_VAL; |
| 306 |
if (_LIB_VERSION == _POSIX_) |
| 307 |
*err = EDOM; |
| 308 |
else if (!fd_matherr(&exc)) { |
| 309 |
if (_LIB_VERSION == _SVID_) { |
| 310 |
(void) WRITE2("y1: DOMAIN error\n", 17); |
| 311 |
} |
| 312 |
*err = EDOM; |
| 313 |
} |
| 314 |
break; |
| 315 |
case 12: |
| 316 |
/* yn(n,0) = -inf */ |
| 317 |
exc.type = DOMAIN; /* should be SING for IEEE */ |
| 318 |
exc.name = "yn"; |
| 319 |
if (_LIB_VERSION == _SVID_) |
| 320 |
exc.retval = -HUGE; |
| 321 |
else |
| 322 |
exc.retval = -HUGE_VAL; |
| 323 |
if (_LIB_VERSION == _POSIX_) |
| 324 |
*err = EDOM; |
| 325 |
else if (!fd_matherr(&exc)) { |
| 326 |
if (_LIB_VERSION == _SVID_) { |
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(void) WRITE2("yn: DOMAIN error\n", 17); |
| 328 |
} |
| 329 |
*err = EDOM; |
| 330 |
} |
| 331 |
break; |
| 332 |
case 13: |
| 333 |
/* yn(x<0) = NaN */ |
| 334 |
exc.type = DOMAIN; |
| 335 |
exc.name = "yn"; |
| 336 |
if (_LIB_VERSION == _SVID_) |
| 337 |
exc.retval = -HUGE; |
| 338 |
else |
| 339 |
exc.retval = -HUGE_VAL; |
| 340 |
if (_LIB_VERSION == _POSIX_) |
| 341 |
*err = EDOM; |
| 342 |
else if (!fd_matherr(&exc)) { |
| 343 |
if (_LIB_VERSION == _SVID_) { |
| 344 |
(void) WRITE2("yn: DOMAIN error\n", 17); |
| 345 |
} |
| 346 |
*err = EDOM; |
| 347 |
} |
| 348 |
break; |
| 349 |
case 14: |
| 350 |
/* lgamma(finite) overflow */ |
| 351 |
exc.type = OVERFLOW; |
| 352 |
exc.name = "lgamma"; |
| 353 |
if (_LIB_VERSION == _SVID_) |
| 354 |
exc.retval = HUGE; |
| 355 |
else |
| 356 |
exc.retval = HUGE_VAL; |
| 357 |
if (_LIB_VERSION == _POSIX_) |
| 358 |
*err = ERANGE; |
| 359 |
else if (!fd_matherr(&exc)) { |
| 360 |
*err = ERANGE; |
| 361 |
} |
| 362 |
break; |
| 363 |
case 15: |
| 364 |
/* lgamma(-integer) or lgamma(0) */ |
| 365 |
exc.type = SING; |
| 366 |
exc.name = "lgamma"; |
| 367 |
if (_LIB_VERSION == _SVID_) |
| 368 |
exc.retval = HUGE; |
| 369 |
else |
| 370 |
exc.retval = HUGE_VAL; |
| 371 |
if (_LIB_VERSION == _POSIX_) |
| 372 |
*err = EDOM; |
| 373 |
else if (!fd_matherr(&exc)) { |
| 374 |
if (_LIB_VERSION == _SVID_) { |
| 375 |
(void) WRITE2("lgamma: SING error\n", 19); |
| 376 |
} |
| 377 |
*err = EDOM; |
| 378 |
} |
| 379 |
break; |
| 380 |
case 16: |
| 381 |
/* log(0) */ |
| 382 |
exc.type = SING; |
| 383 |
exc.name = "log"; |
| 384 |
if (_LIB_VERSION == _SVID_) |
| 385 |
exc.retval = -HUGE; |
| 386 |
else |
| 387 |
exc.retval = -HUGE_VAL; |
| 388 |
if (_LIB_VERSION == _POSIX_) |
| 389 |
*err = ERANGE; |
| 390 |
else if (!fd_matherr(&exc)) { |
| 391 |
if (_LIB_VERSION == _SVID_) { |
| 392 |
(void) WRITE2("log: SING error\n", 16); |
| 393 |
} |
| 394 |
*err = EDOM; |
| 395 |
} |
| 396 |
break; |
| 397 |
case 17: |
| 398 |
/* log(x<0) */ |
| 399 |
exc.type = DOMAIN; |
| 400 |
exc.name = "log"; |
| 401 |
if (_LIB_VERSION == _SVID_) |
| 402 |
exc.retval = -HUGE; |
| 403 |
else |
| 404 |
exc.retval = -HUGE_VAL; |
| 405 |
if (_LIB_VERSION == _POSIX_) |
| 406 |
*err = EDOM; |
| 407 |
else if (!fd_matherr(&exc)) { |
| 408 |
if (_LIB_VERSION == _SVID_) { |
| 409 |
(void) WRITE2("log: DOMAIN error\n", 18); |
| 410 |
} |
| 411 |
*err = EDOM; |
| 412 |
} |
| 413 |
break; |
| 414 |
case 18: |
| 415 |
/* log10(0) */ |
| 416 |
exc.type = SING; |
| 417 |
exc.name = "log10"; |
| 418 |
if (_LIB_VERSION == _SVID_) |
| 419 |
exc.retval = -HUGE; |
| 420 |
else |
| 421 |
exc.retval = -HUGE_VAL; |
| 422 |
if (_LIB_VERSION == _POSIX_) |
| 423 |
*err = ERANGE; |
| 424 |
else if (!fd_matherr(&exc)) { |
| 425 |
if (_LIB_VERSION == _SVID_) { |
| 426 |
(void) WRITE2("log10: SING error\n", 18); |
| 427 |
} |
| 428 |
*err = EDOM; |
| 429 |
} |
| 430 |
break; |
| 431 |
case 19: |
| 432 |
/* log10(x<0) */ |
| 433 |
exc.type = DOMAIN; |
| 434 |
exc.name = "log10"; |
| 435 |
if (_LIB_VERSION == _SVID_) |
| 436 |
exc.retval = -HUGE; |
| 437 |
else |
| 438 |
exc.retval = -HUGE_VAL; |
| 439 |
if (_LIB_VERSION == _POSIX_) |
| 440 |
*err = EDOM; |
| 441 |
else if (!fd_matherr(&exc)) { |
| 442 |
if (_LIB_VERSION == _SVID_) { |
| 443 |
(void) WRITE2("log10: DOMAIN error\n", 20); |
| 444 |
} |
| 445 |
*err = EDOM; |
| 446 |
} |
| 447 |
break; |
| 448 |
case 20: |
| 449 |
/* pow(0.0,0.0) */ |
| 450 |
/* error only if _LIB_VERSION == _SVID_ */ |
| 451 |
exc.type = DOMAIN; |
| 452 |
exc.name = "pow"; |
| 453 |
exc.retval = zero; |
| 454 |
if (_LIB_VERSION != _SVID_) exc.retval = 1.0; |
| 455 |
else if (!fd_matherr(&exc)) { |
| 456 |
(void) WRITE2("pow(0,0): DOMAIN error\n", 23); |
| 457 |
*err = EDOM; |
| 458 |
} |
| 459 |
break; |
| 460 |
case 21: |
| 461 |
/* pow(x,y) overflow */ |
| 462 |
exc.type = OVERFLOW; |
| 463 |
exc.name = "pow"; |
| 464 |
if (_LIB_VERSION == _SVID_) { |
| 465 |
exc.retval = HUGE; |
| 466 |
y *= 0.5; |
| 467 |
if(x<zero&&fd_rint(y)!=y) exc.retval = -HUGE; |
| 468 |
} else { |
| 469 |
exc.retval = HUGE_VAL; |
| 470 |
y *= 0.5; |
| 471 |
if(x<zero&&fd_rint(y)!=y) exc.retval = -HUGE_VAL; |
| 472 |
} |
| 473 |
if (_LIB_VERSION == _POSIX_) |
| 474 |
*err = ERANGE; |
| 475 |
else if (!fd_matherr(&exc)) { |
| 476 |
*err = ERANGE; |
| 477 |
} |
| 478 |
break; |
| 479 |
case 22: |
| 480 |
/* pow(x,y) underflow */ |
| 481 |
exc.type = UNDERFLOW; |
| 482 |
exc.name = "pow"; |
| 483 |
exc.retval = zero; |
| 484 |
if (_LIB_VERSION == _POSIX_) |
| 485 |
*err = ERANGE; |
| 486 |
else if (!fd_matherr(&exc)) { |
| 487 |
*err = ERANGE; |
| 488 |
} |
| 489 |
break; |
| 490 |
case 23: |
| 491 |
/* 0**neg */ |
| 492 |
exc.type = DOMAIN; |
| 493 |
exc.name = "pow"; |
| 494 |
if (_LIB_VERSION == _SVID_) |
| 495 |
exc.retval = zero; |
| 496 |
else |
| 497 |
exc.retval = -HUGE_VAL; |
| 498 |
if (_LIB_VERSION == _POSIX_) |
| 499 |
*err = EDOM; |
| 500 |
else if (!fd_matherr(&exc)) { |
| 501 |
if (_LIB_VERSION == _SVID_) { |
| 502 |
(void) WRITE2("pow(0,neg): DOMAIN error\n", 25); |
| 503 |
} |
| 504 |
*err = EDOM; |
| 505 |
} |
| 506 |
break; |
| 507 |
case 24: |
| 508 |
/* neg**non-integral */ |
| 509 |
exc.type = DOMAIN; |
| 510 |
exc.name = "pow"; |
| 511 |
if (_LIB_VERSION == _SVID_) |
| 512 |
exc.retval = zero; |
| 513 |
else |
| 514 |
exc.retval = zero/zero; /* X/Open allow NaN */ |
| 515 |
if (_LIB_VERSION == _POSIX_) |
| 516 |
*err = EDOM; |
| 517 |
else if (!fd_matherr(&exc)) { |
| 518 |
if (_LIB_VERSION == _SVID_) { |
| 519 |
(void) WRITE2("neg**non-integral: DOMAIN error\n", 32); |
| 520 |
} |
| 521 |
*err = EDOM; |
| 522 |
} |
| 523 |
break; |
| 524 |
case 25: |
| 525 |
/* sinh(finite) overflow */ |
| 526 |
exc.type = OVERFLOW; |
| 527 |
exc.name = "sinh"; |
| 528 |
if (_LIB_VERSION == _SVID_) |
| 529 |
exc.retval = ( (x>zero) ? HUGE : -HUGE); |
| 530 |
else |
| 531 |
exc.retval = ( (x>zero) ? HUGE_VAL : -HUGE_VAL); |
| 532 |
if (_LIB_VERSION == _POSIX_) |
| 533 |
*err = ERANGE; |
| 534 |
else if (!fd_matherr(&exc)) { |
| 535 |
*err = ERANGE; |
| 536 |
} |
| 537 |
break; |
| 538 |
case 26: |
| 539 |
/* sqrt(x<0) */ |
| 540 |
exc.type = DOMAIN; |
| 541 |
exc.name = "sqrt"; |
| 542 |
if (_LIB_VERSION == _SVID_) |
| 543 |
exc.retval = zero; |
| 544 |
else |
| 545 |
exc.retval = zero/zero; |
| 546 |
if (_LIB_VERSION == _POSIX_) |
| 547 |
*err = EDOM; |
| 548 |
else if (!fd_matherr(&exc)) { |
| 549 |
if (_LIB_VERSION == _SVID_) { |
| 550 |
(void) WRITE2("sqrt: DOMAIN error\n", 19); |
| 551 |
} |
| 552 |
*err = EDOM; |
| 553 |
} |
| 554 |
break; |
| 555 |
case 27: |
| 556 |
/* fmod(x,0) */ |
| 557 |
exc.type = DOMAIN; |
| 558 |
exc.name = "fmod"; |
| 559 |
if (_LIB_VERSION == _SVID_) |
| 560 |
exc.retval = x; |
| 561 |
else |
| 562 |
exc.retval = zero/zero; |
| 563 |
if (_LIB_VERSION == _POSIX_) |
| 564 |
*err = EDOM; |
| 565 |
else if (!fd_matherr(&exc)) { |
| 566 |
if (_LIB_VERSION == _SVID_) { |
| 567 |
(void) WRITE2("fmod: DOMAIN error\n", 20); |
| 568 |
} |
| 569 |
*err = EDOM; |
| 570 |
} |
| 571 |
break; |
| 572 |
case 28: |
| 573 |
/* remainder(x,0) */ |
| 574 |
exc.type = DOMAIN; |
| 575 |
exc.name = "remainder"; |
| 576 |
exc.retval = zero/zero; |
| 577 |
if (_LIB_VERSION == _POSIX_) |
| 578 |
*err = EDOM; |
| 579 |
else if (!fd_matherr(&exc)) { |
| 580 |
if (_LIB_VERSION == _SVID_) { |
| 581 |
(void) WRITE2("remainder: DOMAIN error\n", 24); |
| 582 |
} |
| 583 |
*err = EDOM; |
| 584 |
} |
| 585 |
break; |
| 586 |
case 29: |
| 587 |
/* acosh(x<1) */ |
| 588 |
exc.type = DOMAIN; |
| 589 |
exc.name = "acosh"; |
| 590 |
exc.retval = zero/zero; |
| 591 |
if (_LIB_VERSION == _POSIX_) |
| 592 |
*err = EDOM; |
| 593 |
else if (!fd_matherr(&exc)) { |
| 594 |
if (_LIB_VERSION == _SVID_) { |
| 595 |
(void) WRITE2("acosh: DOMAIN error\n", 20); |
| 596 |
} |
| 597 |
*err = EDOM; |
| 598 |
} |
| 599 |
break; |
| 600 |
case 30: |
| 601 |
/* atanh(|x|>1) */ |
| 602 |
exc.type = DOMAIN; |
| 603 |
exc.name = "atanh"; |
| 604 |
exc.retval = zero/zero; |
| 605 |
if (_LIB_VERSION == _POSIX_) |
| 606 |
*err = EDOM; |
| 607 |
else if (!fd_matherr(&exc)) { |
| 608 |
if (_LIB_VERSION == _SVID_) { |
| 609 |
(void) WRITE2("atanh: DOMAIN error\n", 20); |
| 610 |
} |
| 611 |
*err = EDOM; |
| 612 |
} |
| 613 |
break; |
| 614 |
case 31: |
| 615 |
/* atanh(|x|=1) */ |
| 616 |
exc.type = SING; |
| 617 |
exc.name = "atanh"; |
| 618 |
exc.retval = x/zero; /* sign(x)*inf */ |
| 619 |
if (_LIB_VERSION == _POSIX_) |
| 620 |
*err = EDOM; |
| 621 |
else if (!fd_matherr(&exc)) { |
| 622 |
if (_LIB_VERSION == _SVID_) { |
| 623 |
(void) WRITE2("atanh: SING error\n", 18); |
| 624 |
} |
| 625 |
*err = EDOM; |
| 626 |
} |
| 627 |
break; |
| 628 |
case 32: |
| 629 |
/* scalb overflow; SVID also returns +-HUGE_VAL */ |
| 630 |
exc.type = OVERFLOW; |
| 631 |
exc.name = "scalb"; |
| 632 |
exc.retval = x > zero ? HUGE_VAL : -HUGE_VAL; |
| 633 |
if (_LIB_VERSION == _POSIX_) |
| 634 |
*err = ERANGE; |
| 635 |
else if (!fd_matherr(&exc)) { |
| 636 |
*err = ERANGE; |
| 637 |
} |
| 638 |
break; |
| 639 |
case 33: |
| 640 |
/* scalb underflow */ |
| 641 |
exc.type = UNDERFLOW; |
| 642 |
exc.name = "scalb"; |
| 643 |
exc.retval = fd_copysign(zero,x); |
| 644 |
if (_LIB_VERSION == _POSIX_) |
| 645 |
*err = ERANGE; |
| 646 |
else if (!fd_matherr(&exc)) { |
| 647 |
*err = ERANGE; |
| 648 |
} |
| 649 |
break; |
| 650 |
case 34: |
| 651 |
/* j0(|x|>X_TLOSS) */ |
| 652 |
exc.type = TLOSS; |
| 653 |
exc.name = "j0"; |
| 654 |
exc.retval = zero; |
| 655 |
if (_LIB_VERSION == _POSIX_) |
| 656 |
*err = ERANGE; |
| 657 |
else if (!fd_matherr(&exc)) { |
| 658 |
if (_LIB_VERSION == _SVID_) { |
| 659 |
(void) WRITE2(exc.name, 2); |
| 660 |
(void) WRITE2(": TLOSS error\n", 14); |
| 661 |
} |
| 662 |
*err = ERANGE; |
| 663 |
} |
| 664 |
break; |
| 665 |
case 35: |
| 666 |
/* y0(x>X_TLOSS) */ |
| 667 |
exc.type = TLOSS; |
| 668 |
exc.name = "y0"; |
| 669 |
exc.retval = zero; |
| 670 |
if (_LIB_VERSION == _POSIX_) |
| 671 |
*err = ERANGE; |
| 672 |
else if (!fd_matherr(&exc)) { |
| 673 |
if (_LIB_VERSION == _SVID_) { |
| 674 |
(void) WRITE2(exc.name, 2); |
| 675 |
(void) WRITE2(": TLOSS error\n", 14); |
| 676 |
} |
| 677 |
*err = ERANGE; |
| 678 |
} |
| 679 |
break; |
| 680 |
case 36: |
| 681 |
/* j1(|x|>X_TLOSS) */ |
| 682 |
exc.type = TLOSS; |
| 683 |
exc.name = "j1"; |
| 684 |
exc.retval = zero; |
| 685 |
if (_LIB_VERSION == _POSIX_) |
| 686 |
*err = ERANGE; |
| 687 |
else if (!fd_matherr(&exc)) { |
| 688 |
if (_LIB_VERSION == _SVID_) { |
| 689 |
(void) WRITE2(exc.name, 2); |
| 690 |
(void) WRITE2(": TLOSS error\n", 14); |
| 691 |
} |
| 692 |
*err = ERANGE; |
| 693 |
} |
| 694 |
break; |
| 695 |
case 37: |
| 696 |
/* y1(x>X_TLOSS) */ |
| 697 |
exc.type = TLOSS; |
| 698 |
exc.name = "y1"; |
| 699 |
exc.retval = zero; |
| 700 |
if (_LIB_VERSION == _POSIX_) |
| 701 |
*err = ERANGE; |
| 702 |
else if (!fd_matherr(&exc)) { |
| 703 |
if (_LIB_VERSION == _SVID_) { |
| 704 |
(void) WRITE2(exc.name, 2); |
| 705 |
(void) WRITE2(": TLOSS error\n", 14); |
| 706 |
} |
| 707 |
*err = ERANGE; |
| 708 |
} |
| 709 |
break; |
| 710 |
case 38: |
| 711 |
/* jn(|x|>X_TLOSS) */ |
| 712 |
exc.type = TLOSS; |
| 713 |
exc.name = "jn"; |
| 714 |
exc.retval = zero; |
| 715 |
if (_LIB_VERSION == _POSIX_) |
| 716 |
*err = ERANGE; |
| 717 |
else if (!fd_matherr(&exc)) { |
| 718 |
if (_LIB_VERSION == _SVID_) { |
| 719 |
(void) WRITE2(exc.name, 2); |
| 720 |
(void) WRITE2(": TLOSS error\n", 14); |
| 721 |
} |
| 722 |
*err = ERANGE; |
| 723 |
} |
| 724 |
break; |
| 725 |
case 39: |
| 726 |
/* yn(x>X_TLOSS) */ |
| 727 |
exc.type = TLOSS; |
| 728 |
exc.name = "yn"; |
| 729 |
exc.retval = zero; |
| 730 |
if (_LIB_VERSION == _POSIX_) |
| 731 |
*err = ERANGE; |
| 732 |
else if (!fd_matherr(&exc)) { |
| 733 |
if (_LIB_VERSION == _SVID_) { |
| 734 |
(void) WRITE2(exc.name, 2); |
| 735 |
(void) WRITE2(": TLOSS error\n", 14); |
| 736 |
} |
| 737 |
*err = ERANGE; |
| 738 |
} |
| 739 |
break; |
| 740 |
case 40: |
| 741 |
/* gamma(finite) overflow */ |
| 742 |
exc.type = OVERFLOW; |
| 743 |
exc.name = "gamma"; |
| 744 |
if (_LIB_VERSION == _SVID_) |
| 745 |
exc.retval = HUGE; |
| 746 |
else |
| 747 |
exc.retval = HUGE_VAL; |
| 748 |
if (_LIB_VERSION == _POSIX_) |
| 749 |
*err = ERANGE; |
| 750 |
else if (!fd_matherr(&exc)) { |
| 751 |
*err = ERANGE; |
| 752 |
} |
| 753 |
break; |
| 754 |
case 41: |
| 755 |
/* gamma(-integer) or gamma(0) */ |
| 756 |
exc.type = SING; |
| 757 |
exc.name = "gamma"; |
| 758 |
if (_LIB_VERSION == _SVID_) |
| 759 |
exc.retval = HUGE; |
| 760 |
else |
| 761 |
exc.retval = HUGE_VAL; |
| 762 |
if (_LIB_VERSION == _POSIX_) |
| 763 |
*err = EDOM; |
| 764 |
else if (!fd_matherr(&exc)) { |
| 765 |
if (_LIB_VERSION == _SVID_) { |
| 766 |
(void) WRITE2("gamma: SING error\n", 18); |
| 767 |
} |
| 768 |
*err = EDOM; |
| 769 |
} |
| 770 |
break; |
| 771 |
case 42: |
| 772 |
/* pow(NaN,0.0) */ |
| 773 |
/* error only if _LIB_VERSION == _SVID_ & _XOPEN_ */ |
| 774 |
exc.type = DOMAIN; |
| 775 |
exc.name = "pow"; |
| 776 |
exc.retval = x; |
| 777 |
if (_LIB_VERSION == _IEEE_ || |
| 778 |
_LIB_VERSION == _POSIX_) exc.retval = 1.0; |
| 779 |
else if (!fd_matherr(&exc)) { |
| 780 |
*err = EDOM; |
| 781 |
} |
| 782 |
break; |
| 783 |
} |
| 784 |
return exc.retval; |
| 785 |
} |
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