| e_asinl.c (181074) | e_asinl.c (181258) |
|---|---|
| 1 2/* @(#)e_asin.c 1.3 95/01/18 */ 3/* FreeBSD: head/lib/msun/src/e_asin.c 176451 2008-02-22 02:30:36Z das */ 4/* 5 * ==================================================== 6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 7 * 8 * Developed at SunSoft, a Sun Microsystems, Inc. business. 9 * Permission to use, copy, modify, and distribute this 10 * software is freely granted, provided that this notice 11 * is preserved. 12 * ==================================================== 13 */ 14 15#include <sys/cdefs.h> | 1 2/* @(#)e_asin.c 1.3 95/01/18 */ 3/* FreeBSD: head/lib/msun/src/e_asin.c 176451 2008-02-22 02:30:36Z das */ 4/* 5 * ==================================================== 6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 7 * 8 * Developed at SunSoft, a Sun Microsystems, Inc. business. 9 * Permission to use, copy, modify, and distribute this 10 * software is freely granted, provided that this notice 11 * is preserved. 12 * ==================================================== 13 */ 14 15#include <sys/cdefs.h> |
| 16__FBSDID("$FreeBSD: head/lib/msun/src/e_asinl.c 181074 2008-07-31 22:41:26Z das $"); | 16__FBSDID("$FreeBSD: head/lib/msun/src/e_asinl.c 181258 2008-08-03 17:49:05Z das $"); |
| 17 18/* 19 * See comments in e_asin.c. 20 * Converted to long double by David Schultz <das@FreeBSD.ORG>. 21 */ 22 23#include <float.h> 24 --- 17 unchanged lines hidden (view full) --- 42 if(expt >= BIAS) { /* |x|>= 1 */ 43 if(expt==BIAS && ((u.bits.manh&~LDBL_NBIT)|u.bits.manl)==0) 44 /* asin(1)=+-pi/2 with inexact */ 45 return x*pio2_hi+x*pio2_lo; 46 return (x-x)/(x-x); /* asin(|x|>1) is NaN */ 47 } else if (expt<BIAS-1) { /* |x|<0.5 */ 48 if(expt<ASIN_LINEAR) { /* if |x| is small, asinl(x)=x */ 49 if(huge+x>one) return x;/* return x with inexact if x!=0*/ | 17 18/* 19 * See comments in e_asin.c. 20 * Converted to long double by David Schultz <das@FreeBSD.ORG>. 21 */ 22 23#include <float.h> 24 --- 17 unchanged lines hidden (view full) --- 42 if(expt >= BIAS) { /* |x|>= 1 */ 43 if(expt==BIAS && ((u.bits.manh&~LDBL_NBIT)|u.bits.manl)==0) 44 /* asin(1)=+-pi/2 with inexact */ 45 return x*pio2_hi+x*pio2_lo; 46 return (x-x)/(x-x); /* asin(|x|>1) is NaN */ 47 } else if (expt<BIAS-1) { /* |x|<0.5 */ 48 if(expt<ASIN_LINEAR) { /* if |x| is small, asinl(x)=x */ 49 if(huge+x>one) return x;/* return x with inexact if x!=0*/ |
| 50 } else 51 t = x*x; 52 p = P(t); 53 q = Q(t); 54 w = p/q; 55 return x+x*w; | 50 } 51 t = x*x; 52 p = P(t); 53 q = Q(t); 54 w = p/q; 55 return x+x*w; |
| 56 } 57 /* 1> |x|>= 0.5 */ 58 w = one-fabsl(x); 59 t = w*0.5; 60 p = P(t); 61 q = Q(t); 62 s = sqrtl(t); 63 if(u.bits.manh>=THRESH) { /* if |x| is close to 1 */ --- 14 unchanged lines hidden --- | 56 } 57 /* 1> |x|>= 0.5 */ 58 w = one-fabsl(x); 59 t = w*0.5; 60 p = P(t); 61 q = Q(t); 62 s = sqrtl(t); 63 if(u.bits.manh>=THRESH) { /* if |x| is close to 1 */ --- 14 unchanged lines hidden --- |