Removed file/folder for ishmal

(bzr r478)

1 files changed, 0 insertions, 386 deletions

diff --git a/src/dom/js/fdlibm/e_pow.c b/src/dom/js/fdlibm/e_pow.c
deleted file mode 100644
index 18c8d0695..000000000
--- a/src/dom/js/fdlibm/e_pow.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Sun Microsystems, Inc.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-/* @(#)e_pow.c 1.3 95/01/18 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunSoft, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- */
-
-/* __ieee754_pow(x,y) return x**y
- *
- *		      n
- * Method:  Let x =  2   * (1+f)
- *	1. Compute and return log2(x) in two pieces:
- *		log2(x) = w1 + w2,
- *	   where w1 has 53-24 = 29 bit trailing zeros.
- *	2. Perform y*log2(x) = n+y' by simulating muti-precision 
- *	   arithmetic, where |y'|<=0.5.
- *	3. Return x**y = 2**n*exp(y'*log2)
- *
- * Special cases:
- *	1.  (anything) ** 0  is 1
- *	2.  (anything) ** 1  is itself
- *	3.  (anything) ** NAN is NAN
- *	4.  NAN ** (anything except 0) is NAN
- *	5.  +-(|x| > 1) **  +INF is +INF
- *	6.  +-(|x| > 1) **  -INF is +0
- *	7.  +-(|x| < 1) **  +INF is +0
- *	8.  +-(|x| < 1) **  -INF is +INF
- *	9.  +-1         ** +-INF is NAN
- *	10. +0 ** (+anything except 0, NAN)               is +0
- *	11. -0 ** (+anything except 0, NAN, odd integer)  is +0
- *	12. +0 ** (-anything except 0, NAN)               is +INF
- *	13. -0 ** (-anything except 0, NAN, odd integer)  is +INF
- *	14. -0 ** (odd integer) = -( +0 ** (odd integer) )
- *	15. +INF ** (+anything except 0,NAN) is +INF
- *	16. +INF ** (-anything except 0,NAN) is +0
- *	17. -INF ** (anything)  = -0 ** (-anything)
- *	18. (-anything) ** (integer) is (-1)**(integer)*(+anything**integer)
- *	19. (-anything except 0 and inf) ** (non-integer) is NAN
- *
- * Accuracy:
- *	pow(x,y) returns x**y nearly rounded. In particular
- *			pow(integer,integer)
- *	always returns the correct integer provided it is 
- *	representable.
- *
- * Constants :
- * The hexadecimal values are the intended ones for the following 
- * constants. The decimal values may be used, provided that the 
- * compiler will convert from decimal to binary accurately enough 
- * to produce the hexadecimal values shown.
- */
-
-#include "fdlibm.h"
-
-#if defined(_MSC_VER)
-/* Microsoft Compiler */
-#pragma warning( disable : 4723 ) /* disables potential divide by 0 warning */
-#endif
-
-#ifdef __STDC__
-static const double 
-#else
-static double 
-#endif
-bp[] = {1.0, 1.5,},
-dp_h[] = { 0.0, 5.84962487220764160156e-01,}, /* 0x3FE2B803, 0x40000000 */
-dp_l[] = { 0.0, 1.35003920212974897128e-08,}, /* 0x3E4CFDEB, 0x43CFD006 */
-zero    =  0.0,
-one	=  1.0,
-two	=  2.0,
-two53	=  9007199254740992.0,	/* 0x43400000, 0x00000000 */
-really_big	=  1.0e300,
-tiny    =  1.0e-300,
-	/* poly coefs for (3/2)*(log(x)-2s-2/3*s**3 */
-L1  =  5.99999999999994648725e-01, /* 0x3FE33333, 0x33333303 */
-L2  =  4.28571428578550184252e-01, /* 0x3FDB6DB6, 0xDB6FABFF */
-L3  =  3.33333329818377432918e-01, /* 0x3FD55555, 0x518F264D */
-L4  =  2.72728123808534006489e-01, /* 0x3FD17460, 0xA91D4101 */
-L5  =  2.30660745775561754067e-01, /* 0x3FCD864A, 0x93C9DB65 */
-L6  =  2.06975017800338417784e-01, /* 0x3FCA7E28, 0x4A454EEF */
-P1   =  1.66666666666666019037e-01, /* 0x3FC55555, 0x5555553E */
-P2   = -2.77777777770155933842e-03, /* 0xBF66C16C, 0x16BEBD93 */
-P3   =  6.61375632143793436117e-05, /* 0x3F11566A, 0xAF25DE2C */
-P4   = -1.65339022054652515390e-06, /* 0xBEBBBD41, 0xC5D26BF1 */
-P5   =  4.13813679705723846039e-08, /* 0x3E663769, 0x72BEA4D0 */
-lg2  =  6.93147180559945286227e-01, /* 0x3FE62E42, 0xFEFA39EF */
-lg2_h  =  6.93147182464599609375e-01, /* 0x3FE62E43, 0x00000000 */
-lg2_l  = -1.90465429995776804525e-09, /* 0xBE205C61, 0x0CA86C39 */
-ovt =  8.0085662595372944372e-0017, /* -(1024-log2(ovfl+.5ulp)) */
-cp    =  9.61796693925975554329e-01, /* 0x3FEEC709, 0xDC3A03FD =2/(3ln2) */
-cp_h  =  9.61796700954437255859e-01, /* 0x3FEEC709, 0xE0000000 =(float)cp */
-cp_l  = -7.02846165095275826516e-09, /* 0xBE3E2FE0, 0x145B01F5 =tail of cp_h*/
-ivln2    =  1.44269504088896338700e+00, /* 0x3FF71547, 0x652B82FE =1/ln2 */
-ivln2_h  =  1.44269502162933349609e+00, /* 0x3FF71547, 0x60000000 =24b 1/ln2*/
-ivln2_l  =  1.92596299112661746887e-08; /* 0x3E54AE0B, 0xF85DDF44 =1/ln2 tail*/
-
-#ifdef __STDC__
-	double __ieee754_pow(double x, double y)
-#else
-	double __ieee754_pow(x,y)
-	double x, y;
-#endif
-{
-        fd_twoints ux, uy, uz;
-        double y1,t1,p_h,t,z,ax;
-	double z_h,z_l,p_l;
-	double t2,r,s,u,v,w;
-	int i,j,k,yisint,n;
-	int hx,hy,ix,iy;
-	unsigned lx,ly;
-
-        ux.d = x; uy.d = y;
-	hx = __HI(ux); lx = __LO(ux);
-	hy = __HI(uy); ly = __LO(uy);
-	ix = hx&0x7fffffff;  iy = hy&0x7fffffff;
-
-    /* y==zero: x**0 = 1 */
-	if((iy|ly)==0) return one; 	
-
-    /* +-NaN return x+y */
-	if(ix > 0x7ff00000 || ((ix==0x7ff00000)&&(lx!=0)) ||
-	   iy > 0x7ff00000 || ((iy==0x7ff00000)&&(ly!=0))) 
-		return x+y;	
-
-    /* determine if y is an odd int when x < 0
-     * yisint = 0	... y is not an integer
-     * yisint = 1	... y is an odd int
-     * yisint = 2	... y is an even int
-     */
-	yisint  = 0;
-	if(hx<0) {	
-	    if(iy>=0x43400000) yisint = 2; /* even integer y */
-	    else if(iy>=0x3ff00000) {
-		k = (iy>>20)-0x3ff;	   /* exponent */
-		if(k>20) {
-		    j = ly>>(52-k);
-		    if((j<<(52-k))==(int)ly) yisint = 2-(j&1);
-		} else if(ly==0) {
-		    j = iy>>(20-k);
-		    if((j<<(20-k))==iy) yisint = 2-(j&1);
-		}
-	    }		
-	} 
-
-    /* special value of y */
-	if(ly==0) { 	
-	    if (iy==0x7ff00000) {	/* y is +-inf */
-	        if(((ix-0x3ff00000)|lx)==0)
-#ifdef _WIN32
-/* VC++ optimizer reduces y - y to 0 */ 
-                    return y / y;
-#else
-		    return  y - y;	/* inf**+-1 is NaN */
-#endif
-	        else if (ix >= 0x3ff00000)/* (|x|>1)**+-inf = inf,0 */
-		    return (hy>=0)? y: zero;
-	        else			/* (|x|<1)**-,+inf = inf,0 */
-		    return (hy<0)?-y: zero;
-	    } 
-	    if(iy==0x3ff00000) {	/* y is  +-1 */
-		if(hy<0) return one/x; else return x;
-	    }
-	    if(hy==0x40000000) return x*x; /* y is  2 */
-	    if(hy==0x3fe00000) {	/* y is  0.5 */
-		if(hx>=0)	/* x >= +0 */
-		return fd_sqrt(x);	
-	    }
-	}
-
-	ax   = fd_fabs(x);
-    /* special value of x */
-	if(lx==0) {
-	    if(ix==0x7ff00000||ix==0||ix==0x3ff00000){
-		z = ax;			/*x is +-0,+-inf,+-1*/
-		if(hy<0) z = one/z;	/* z = (1/|x|) */
-		if(hx<0) {
-		    if(((ix-0x3ff00000)|yisint)==0) {
-			z = (z-z)/(z-z); /* (-1)**non-int is NaN */
-		    } else if(yisint==1) {
-#ifdef HPUX
-                        uz.d = z;
-			__HI(uz) ^= 1<<31; /* some HPUXes cannot negate 0.. */
-                        z = uz.d;
-#else
-			z = -z;		/* (x<0)**odd = -(|x|**odd) */
-#endif
-			}
-		}
-		return z;
-	    }
-	}
-    
-    /* (x<0)**(non-int) is NaN */
-	if((((hx>>31)+1)|yisint)==0) return (x-x)/(x-x);
-
-    /* |y| is really_big */
-	if(iy>0x41e00000) { /* if |y| > 2**31 */
-	    if(iy>0x43f00000){	/* if |y| > 2**64, must o/uflow */
-		if(ix<=0x3fefffff) return (hy<0)? really_big*really_big:tiny*tiny;
-		if(ix>=0x3ff00000) return (hy>0)? really_big*really_big:tiny*tiny;
-	    }
-	/* over/underflow if x is not close to one */
-	    if(ix<0x3fefffff) return (hy<0)? really_big*really_big:tiny*tiny;
-	    if(ix>0x3ff00000) return (hy>0)? really_big*really_big:tiny*tiny;
-	/* now |1-x| is tiny <= 2**-20, suffice to compute 
-	   log(x) by x-x^2/2+x^3/3-x^4/4 */
-	    t = x-1;		/* t has 20 trailing zeros */
-	    w = (t*t)*(0.5-t*(0.3333333333333333333333-t*0.25));
-	    u = ivln2_h*t;	/* ivln2_h has 21 sig. bits */
-	    v = t*ivln2_l-w*ivln2;
-	    t1 = u+v;
-            uz.d = t1;
-	    __LO(uz) = 0;
-            t1 = uz.d;
-	    t2 = v-(t1-u);
-	} else {
-	    double s_h,t_h;
-	    double s2,s_l,t_l;
-	    n = 0;
-	/* take care subnormal number */
-	    if(ix<0x00100000) 
-		{ax *= two53; n -= 53; uz.d = ax; ix = __HI(uz); }
-	    n  += ((ix)>>20)-0x3ff;
-	    j  = ix&0x000fffff;
-	/* determine interval */
-	    ix = j|0x3ff00000;		/* normalize ix */
-	    if(j<=0x3988E) k=0;		/* |x|<sqrt(3/2) */
-	    else if(j<0xBB67A) k=1;	/* |x|<sqrt(3)   */
-	    else {k=0;n+=1;ix -= 0x00100000;}
-            uz.d = ax;
-	    __HI(uz) = ix;
-            ax = uz.d;
-
-	/* compute s = s_h+s_l = (x-1)/(x+1) or (x-1.5)/(x+1.5) */
-	    u = ax-bp[k];		/* bp[0]=1.0, bp[1]=1.5 */
-	    v = one/(ax+bp[k]);
-	    s = u*v;
-	    s_h = s;
-            uz.d = s_h;
-	    __LO(uz) = 0;
-            s_h = uz.d;
-	/* t_h=ax+bp[k] High */
-	    t_h = zero;
-            uz.d = t_h;
-	    __HI(uz)=((ix>>1)|0x20000000)+0x00080000+(k<<18); 
-            t_h = uz.d;
-	    t_l = ax - (t_h-bp[k]);
-	    s_l = v*((u-s_h*t_h)-s_h*t_l);
-	/* compute log(ax) */
-	    s2 = s*s;
-	    r = s2*s2*(L1+s2*(L2+s2*(L3+s2*(L4+s2*(L5+s2*L6)))));
-	    r += s_l*(s_h+s);
-	    s2  = s_h*s_h;
-	    t_h = 3.0+s2+r;
-            uz.d = t_h;
-	    __LO(uz) = 0;
-            t_h = uz.d;
-	    t_l = r-((t_h-3.0)-s2);
-	/* u+v = s*(1+...) */
-	    u = s_h*t_h;
-	    v = s_l*t_h+t_l*s;
-	/* 2/(3log2)*(s+...) */
-	    p_h = u+v;
-            uz.d = p_h;
-	    __LO(uz) = 0;
-            p_h = uz.d;
-	    p_l = v-(p_h-u);
-	    z_h = cp_h*p_h;		/* cp_h+cp_l = 2/(3*log2) */
-	    z_l = cp_l*p_h+p_l*cp+dp_l[k];
-	/* log2(ax) = (s+..)*2/(3*log2) = n + dp_h + z_h + z_l */
-	    t = (double)n;
-	    t1 = (((z_h+z_l)+dp_h[k])+t);
-            uz.d = t1;
-	    __LO(uz) = 0;
-            t1 = uz.d;
-	    t2 = z_l-(((t1-t)-dp_h[k])-z_h);
-	}
-
-	s = one; /* s (sign of result -ve**odd) = -1 else = 1 */
-	if((((hx>>31)+1)|(yisint-1))==0) s = -one;/* (-ve)**(odd int) */
-
-    /* split up y into y1+y2 and compute (y1+y2)*(t1+t2) */
-	y1  = y;
-        uy.d = y1;
-	__LO(uy) = 0;
-        y1 = uy.d;
-	p_l = (y-y1)*t1+y*t2;
-	p_h = y1*t1;
-	z = p_l+p_h;
-        uz.d = z;
-	j = __HI(uz);
-	i = __LO(uz);
-
-	if (j>=0x40900000) {				/* z >= 1024 */
-	    if(((j-0x40900000)|i)!=0)			/* if z > 1024 */
-		return s*really_big*really_big;			/* overflow */
-	    else {
-		if(p_l+ovt>z-p_h) return s*really_big*really_big;	/* overflow */
-	    }
-	} else if((j&0x7fffffff)>=0x4090cc00 ) {	/* z <= -1075 */
-	    if(((j-0xc090cc00)|i)!=0) 		/* z < -1075 */
-		return s*tiny*tiny;		/* underflow */
-	    else {
-		if(p_l<=z-p_h) return s*tiny*tiny;	/* underflow */
-	    }
-	}
-    /*
-     * compute 2**(p_h+p_l)
-     */
-	i = j&0x7fffffff;
-	k = (i>>20)-0x3ff;
-	n = 0;
-	if(i>0x3fe00000) {		/* if |z| > 0.5, set n = [z+0.5] */
-	    n = j+(0x00100000>>(k+1));
-	    k = ((n&0x7fffffff)>>20)-0x3ff;	/* new k for n */
-	    t = zero;
-            uz.d = t;
-	    __HI(uz) = (n&~(0x000fffff>>k));
-            t = uz.d;
-	    n = ((n&0x000fffff)|0x00100000)>>(20-k);
-	    if(j<0) n = -n;
-	    p_h -= t;
-	} 
-	t = p_l+p_h;
-        uz.d = t;
-	__LO(uz) = 0;
-        t = uz.d;
-	u = t*lg2_h;
-	v = (p_l-(t-p_h))*lg2+t*lg2_l;
-	z = u+v;
-	w = v-(z-u);
-	t  = z*z;
-	t1  = z - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
-	r  = (z*t1)/(t1-two)-(w+z*w);
-	z  = one-(r-z);
-        uz.d = z;
-	j  = __HI(uz);
-	j += (n<<20);
-	if((j>>20)<=0) z = fd_scalbn(z,n);	/* subnormal output */
-	else { uz.d = z; __HI(uz) += (n<<20); z = uz.d; }
-	return s*z;
-}