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-rw-r--r--src/math/e_asinf.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/src/math/e_asinf.c b/src/math/e_asinf.c
deleted file mode 100644
index 9c693970..00000000
--- a/src/math/e_asinf.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* e_asinf.c -- float version of e_asin.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * 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 <math.h>
-#include "math_private.h"
-
-static const float
-one = 1.0000000000e+00, /* 0x3F800000 */
-huge = 1.000e+30,
-pio2_hi = 1.5707962513e+00, /* 0x3fc90fda */
-pio2_lo = 7.5497894159e-08, /* 0x33a22168 */
-pio4_hi = 7.8539818525e-01, /* 0x3f490fdb */
- /* coefficient for R(x^2) */
-pS0 = 1.6666667163e-01, /* 0x3e2aaaab */
-pS1 = -3.2556581497e-01, /* 0xbea6b090 */
-pS2 = 2.0121252537e-01, /* 0x3e4e0aa8 */
-pS3 = -4.0055535734e-02, /* 0xbd241146 */
-pS4 = 7.9153501429e-04, /* 0x3a4f7f04 */
-pS5 = 3.4793309169e-05, /* 0x3811ef08 */
-qS1 = -2.4033949375e+00, /* 0xc019d139 */
-qS2 = 2.0209457874e+00, /* 0x4001572d */
-qS3 = -6.8828397989e-01, /* 0xbf303361 */
-qS4 = 7.7038154006e-02; /* 0x3d9dc62e */
-
-float
-asinf(float x)
-{
- float t=0.0,w,p,q,c,r,s;
- int32_t hx,ix;
- GET_FLOAT_WORD(hx,x);
- ix = hx&0x7fffffff;
- if(ix==0x3f800000) {
- /* asin(1)=+-pi/2 with inexact */
- return x*pio2_hi+x*pio2_lo;
- } else if(ix> 0x3f800000) { /* |x|>= 1 */
- return (x-x)/(x-x); /* asin(|x|>1) is NaN */
- } else if (ix<0x3f000000) { /* |x|<0.5 */
- if(ix<0x32000000) { /* if |x| < 2**-27 */
- if(huge+x>one) return x;/* return x with inexact if x!=0*/
- } else
- t = x*x;
- p = t*(pS0+t*(pS1+t*(pS2+t*(pS3+t*(pS4+t*pS5)))));
- q = one+t*(qS1+t*(qS2+t*(qS3+t*qS4)));
- w = p/q;
- return x+x*w;
- }
- /* 1> |x|>= 0.5 */
- w = one-fabsf(x);
- t = w*(float)0.5;
- p = t*(pS0+t*(pS1+t*(pS2+t*(pS3+t*(pS4+t*pS5)))));
- q = one+t*(qS1+t*(qS2+t*(qS3+t*qS4)));
- s = sqrtf(t);
- if(ix>=0x3F79999A) { /* if |x| > 0.975 */
- w = p/q;
- t = pio2_hi-((float)2.0*(s+s*w)-pio2_lo);
- } else {
- int32_t iw;
- w = s;
- GET_FLOAT_WORD(iw,w);
- SET_FLOAT_WORD(w,iw&0xfffff000);
- c = (t-w*w)/(s+w);
- r = p/q;
- p = (float)2.0*s*r-(pio2_lo-(float)2.0*c);
- q = pio4_hi-(float)2.0*w;
- t = pio4_hi-(p-q);
- }
- if(hx>0) return t; else return -t;
-}