forked from KolibriOS/kolibrios
785 lines
20 KiB
C
785 lines
20 KiB
C
|
|
/* @(#)k_standard.c 5.1 93/09/24 */
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*
|
|
*/
|
|
|
|
#include "fdlibm.h"
|
|
#include <errno.h>
|
|
|
|
#ifndef _USE_WRITE
|
|
#include <stdio.h> /* fputs(), stderr */
|
|
#define WRITE2(u,v) fputs(u, stderr)
|
|
#else /* !defined(_USE_WRITE) */
|
|
#include <unistd.h> /* write */
|
|
#define WRITE2(u,v) write(2, u, v)
|
|
#undef fflush
|
|
#endif /* !defined(_USE_WRITE) */
|
|
|
|
#ifdef __STDC__
|
|
static const double zero = 0.0; /* used as const */
|
|
#else
|
|
static double zero = 0.0; /* used as const */
|
|
#endif
|
|
|
|
/*
|
|
* Standard conformance (non-IEEE) on exception cases.
|
|
* Mapping:
|
|
* 1 -- acos(|x|>1)
|
|
* 2 -- asin(|x|>1)
|
|
* 3 -- atan2(+-0,+-0)
|
|
* 4 -- hypot overflow
|
|
* 5 -- cosh overflow
|
|
* 6 -- exp overflow
|
|
* 7 -- exp underflow
|
|
* 8 -- y0(0)
|
|
* 9 -- y0(-ve)
|
|
* 10-- y1(0)
|
|
* 11-- y1(-ve)
|
|
* 12-- yn(0)
|
|
* 13-- yn(-ve)
|
|
* 14-- lgamma(finite) overflow
|
|
* 15-- lgamma(-integer)
|
|
* 16-- log(0)
|
|
* 17-- log(x<0)
|
|
* 18-- log10(0)
|
|
* 19-- log10(x<0)
|
|
* 20-- pow(0.0,0.0)
|
|
* 21-- pow(x,y) overflow
|
|
* 22-- pow(x,y) underflow
|
|
* 23-- pow(0,negative)
|
|
* 24-- pow(neg,non-integral)
|
|
* 25-- sinh(finite) overflow
|
|
* 26-- sqrt(negative)
|
|
* 27-- fmod(x,0)
|
|
* 28-- remainder(x,0)
|
|
* 29-- acosh(x<1)
|
|
* 30-- atanh(|x|>1)
|
|
* 31-- atanh(|x|=1)
|
|
* 32-- scalb overflow
|
|
* 33-- scalb underflow
|
|
* 34-- j0(|x|>X_TLOSS)
|
|
* 35-- y0(x>X_TLOSS)
|
|
* 36-- j1(|x|>X_TLOSS)
|
|
* 37-- y1(x>X_TLOSS)
|
|
* 38-- jn(|x|>X_TLOSS, n)
|
|
* 39-- yn(x>X_TLOSS, n)
|
|
* 40-- gamma(finite) overflow
|
|
* 41-- gamma(-integer)
|
|
* 42-- pow(NaN,0.0)
|
|
*/
|
|
|
|
|
|
#ifdef __STDC__
|
|
double __kernel_standard(double x, double y, int type)
|
|
#else
|
|
double __kernel_standard(x,y,type)
|
|
double x,y; int type;
|
|
#endif
|
|
{
|
|
struct exception exc;
|
|
#ifndef HUGE_VAL /* this is the only routine that uses HUGE_VAL */
|
|
#define HUGE_VAL inf
|
|
double inf = 0.0;
|
|
|
|
SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */
|
|
#endif
|
|
|
|
#ifdef _USE_WRITE
|
|
/* (void) fflush(_stdout_r(p)); */
|
|
#endif
|
|
exc.arg1 = x;
|
|
exc.arg2 = y;
|
|
exc.err = 0;
|
|
switch(type) {
|
|
case 1:
|
|
case 101:
|
|
/* acos(|x|>1) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "acos" : "acosf";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if(_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("acos: DOMAIN error\n", 19);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 2:
|
|
case 102:
|
|
/* asin(|x|>1) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "asin" : "asinf";
|
|
exc.retval = zero;
|
|
if(_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if(_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("asin: DOMAIN error\n", 19);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 3:
|
|
case 103:
|
|
/* atan2(+-0,+-0) */
|
|
exc.arg1 = y;
|
|
exc.arg2 = x;
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "atan2" : "atan2f";
|
|
exc.retval = zero;
|
|
if(_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if(_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("atan2: DOMAIN error\n", 20);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 4:
|
|
case 104:
|
|
/* hypot(finite,finite) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "hypot" : "hypotf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 5:
|
|
case 105:
|
|
/* cosh(finite) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "cosh" : "coshf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 6:
|
|
case 106:
|
|
/* exp(finite) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "exp" : "expf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 7:
|
|
case 107:
|
|
/* exp(finite) underflow */
|
|
exc.type = UNDERFLOW;
|
|
exc.name = type < 100 ? "exp" : "expf";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 8:
|
|
case 108:
|
|
/* y0(0) = -inf */
|
|
exc.type = DOMAIN; /* should be SING for IEEE */
|
|
exc.name = type < 100 ? "y0" : "y0f";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("y0: DOMAIN error\n", 17);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 9:
|
|
case 109:
|
|
/* y0(x<0) = NaN */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "y0" : "y0f";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/*if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("y0: DOMAIN error\n", 17);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 10:
|
|
case 110:
|
|
/* y1(0) = -inf */
|
|
exc.type = DOMAIN; /* should be SING for IEEE */
|
|
exc.name = type < 100 ? "y1" : "y1f";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("y1: DOMAIN error\n", 17);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 11:
|
|
case 111:
|
|
/* y1(x<0) = NaN */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "y1" : "y1f";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("y1: DOMAIN error\n", 17);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 12:
|
|
case 112:
|
|
/* yn(n,0) = -inf */
|
|
exc.type = DOMAIN; /* should be SING for IEEE */
|
|
exc.name = type < 100 ? "yn" : "ynf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("yn: DOMAIN error\n", 17);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 13:
|
|
case 113:
|
|
/* yn(x<0) = NaN */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "yn" : "ynf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("yn: DOMAIN error\n", 17);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 14:
|
|
case 114:
|
|
/* lgamma(finite) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "lgamma" : "lgammaf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 15:
|
|
case 115:
|
|
/* lgamma(-integer) or lgamma(0) */
|
|
exc.type = SING;
|
|
exc.name = type < 100 ? "lgamma" : "lgammaf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("lgamma: SING error\n", 19);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 16:
|
|
case 116:
|
|
/* log(0) */
|
|
exc.type = SING;
|
|
exc.name = type < 100 ? "log" : "logf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("log: SING error\n", 16);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 17:
|
|
case 117:
|
|
/* log(x<0) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "log" : "logf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("log: DOMAIN error\n", 18);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 18:
|
|
case 118:
|
|
/* log10(0) */
|
|
exc.type = SING;
|
|
exc.name = type < 100 ? "log10" : "log10f";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("log10: SING error\n", 18);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 19:
|
|
case 119:
|
|
/* log10(x<0) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "log10" : "log10f";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = -HUGE;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("log10: DOMAIN error\n", 20);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 20:
|
|
case 120:
|
|
/* pow(0.0,0.0) */
|
|
/* error only if _LIB_VERSION == _SVID_ */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "pow" : "powf";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION != _SVID_) exc.retval = 1.0;
|
|
else if (!matherr(&exc)) {
|
|
/* (void) WRITE2("pow(0,0): DOMAIN error\n", 23); */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 21:
|
|
case 121:
|
|
/* pow(x,y) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "pow" : "powf";
|
|
if (_LIB_VERSION == _SVID_) {
|
|
exc.retval = HUGE;
|
|
y *= 0.5;
|
|
if(x<zero&&rint(y)!=y) exc.retval = -HUGE;
|
|
} else {
|
|
exc.retval = HUGE_VAL;
|
|
y *= 0.5;
|
|
if(x<zero&&rint(y)!=y) exc.retval = -HUGE_VAL;
|
|
}
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 22:
|
|
case 122:
|
|
/* pow(x,y) underflow */
|
|
exc.type = UNDERFLOW;
|
|
exc.name = type < 100 ? "pow" : "powf";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 23:
|
|
case 123:
|
|
/* 0**neg */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "pow" : "powf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = zero;
|
|
else
|
|
exc.retval = -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("pow(0,neg): DOMAIN error\n", 25);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 24:
|
|
case 124:
|
|
/* neg**non-integral */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "pow" : "powf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = zero;
|
|
else
|
|
exc.retval = zero/zero; /* X/Open allow NaN */
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("neg**non-integral: DOMAIN error\n", 32);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 25:
|
|
case 125:
|
|
/* sinh(finite) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "sinh" : "sinhf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = ( (x>zero) ? HUGE : -HUGE);
|
|
else
|
|
exc.retval = ( (x>zero) ? HUGE_VAL : -HUGE_VAL);
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 26:
|
|
case 126:
|
|
/* sqrt(x<0) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "sqrt" : "sqrtf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = zero;
|
|
else
|
|
exc.retval = zero/zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("sqrt: DOMAIN error\n", 19);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 27:
|
|
case 127:
|
|
/* fmod(x,0) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "fmod" : "fmodf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = x;
|
|
else
|
|
exc.retval = zero/zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("fmod: DOMAIN error\n", 20);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 28:
|
|
case 128:
|
|
/* remainder(x,0) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "remainder" : "remainderf";
|
|
exc.retval = zero/zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("remainder: DOMAIN error\n", 24);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 29:
|
|
case 129:
|
|
/* acosh(x<1) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "acosh" : "acoshf";
|
|
exc.retval = zero/zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("acosh: DOMAIN error\n", 20);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 30:
|
|
case 130:
|
|
/* atanh(|x|>1) */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "atanh" : "atanhf";
|
|
exc.retval = zero/zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("atanh: DOMAIN error\n", 20);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 31:
|
|
case 131:
|
|
/* atanh(|x|=1) */
|
|
exc.type = SING;
|
|
exc.name = type < 100 ? "atanh" : "atanhf";
|
|
exc.retval = x/zero; /* sign(x)*inf */
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("atanh: SING error\n", 18);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 32:
|
|
case 132:
|
|
/* scalb overflow; SVID also returns +-HUGE_VAL */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "scalb" : "scalbf";
|
|
exc.retval = x > zero ? HUGE_VAL : -HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 33:
|
|
case 133:
|
|
/* scalb underflow */
|
|
exc.type = UNDERFLOW;
|
|
exc.name = type < 100 ? "scalb" : "scalbf";
|
|
exc.retval = copysign(zero,x);
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 34:
|
|
case 134:
|
|
/* j0(|x|>X_TLOSS) */
|
|
exc.type = TLOSS;
|
|
exc.name = type < 100 ? "j0" : "j0f";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2(exc.name, 2);
|
|
(void) WRITE2(": TLOSS error\n", 14);
|
|
} */
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 35:
|
|
case 135:
|
|
/* y0(x>X_TLOSS) */
|
|
exc.type = TLOSS;
|
|
exc.name = type < 100 ? "y0" : "y0f";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2(exc.name, 2);
|
|
(void) WRITE2(": TLOSS error\n", 14);
|
|
} */
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 36:
|
|
case 136:
|
|
/* j1(|x|>X_TLOSS) */
|
|
exc.type = TLOSS;
|
|
exc.name = type < 100 ? "j1" : "j1f";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2(exc.name, 2);
|
|
(void) WRITE2(": TLOSS error\n", 14);
|
|
} */
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 37:
|
|
case 137:
|
|
/* y1(x>X_TLOSS) */
|
|
exc.type = TLOSS;
|
|
exc.name = type < 100 ? "y1" : "y1f";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2(exc.name, 2);
|
|
(void) WRITE2(": TLOSS error\n", 14);
|
|
} */
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 38:
|
|
case 138:
|
|
/* jn(|x|>X_TLOSS) */
|
|
exc.type = TLOSS;
|
|
exc.name = type < 100 ? "jn" : "jnf";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2(exc.name, 2);
|
|
(void) WRITE2(": TLOSS error\n", 14);
|
|
} */
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 39:
|
|
case 139:
|
|
/* yn(x>X_TLOSS) */
|
|
exc.type = TLOSS;
|
|
exc.name = type < 100 ? "yn" : "ynf";
|
|
exc.retval = zero;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2(exc.name, 2);
|
|
(void) WRITE2(": TLOSS error\n", 14);
|
|
} */
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 40:
|
|
case 140:
|
|
/* gamma(finite) overflow */
|
|
exc.type = OVERFLOW;
|
|
exc.name = type < 100 ? "gamma" : "gammaf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = ERANGE;
|
|
else if (!matherr(&exc)) {
|
|
errno = ERANGE;
|
|
}
|
|
break;
|
|
case 41:
|
|
case 141:
|
|
/* gamma(-integer) or gamma(0) */
|
|
exc.type = SING;
|
|
exc.name = type < 100 ? "gamma" : "gammaf";
|
|
if (_LIB_VERSION == _SVID_)
|
|
exc.retval = HUGE;
|
|
else
|
|
exc.retval = HUGE_VAL;
|
|
if (_LIB_VERSION == _POSIX_)
|
|
errno = EDOM;
|
|
else if (!matherr(&exc)) {
|
|
/* if (_LIB_VERSION == _SVID_) {
|
|
(void) WRITE2("gamma: SING error\n", 18);
|
|
} */
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
case 42:
|
|
case 142:
|
|
/* pow(NaN,0.0) */
|
|
/* error only if _LIB_VERSION == _SVID_ & _XOPEN_ */
|
|
exc.type = DOMAIN;
|
|
exc.name = type < 100 ? "pow" : "powf";
|
|
exc.retval = x;
|
|
if (_LIB_VERSION == _IEEE_ ||
|
|
_LIB_VERSION == _POSIX_) exc.retval = 1.0;
|
|
else if (!matherr(&exc)) {
|
|
errno = EDOM;
|
|
}
|
|
break;
|
|
}
|
|
if (exc.err != 0)
|
|
errno = exc.err;
|
|
return exc.retval;
|
|
}
|
|
|
|
|