Merge branch 'master' of ssh://git.gag.com/scm/git/fw/altos

[fw/altos] / src / math / kf_cos.c

diff --git a/src/math/kf_cos.c b/src/math/kf_cos.c
deleted file mode 100644 (file)
index 4f71af2..0000000
--- a/src/math/kf_cos.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* kf_cos.c -- float version of k_cos.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 "fdlibm.h"
-
-#ifdef __STDC__
-static const float 
-#else
-static float 
-#endif
-one =  1.0000000000e+00, /* 0x3f800000 */
-C1  =  4.1666667908e-02, /* 0x3d2aaaab */
-C2  = -1.3888889225e-03, /* 0xbab60b61 */
-C3  =  2.4801587642e-05, /* 0x37d00d01 */
-C4  = -2.7557314297e-07, /* 0xb493f27c */
-C5  =  2.0875723372e-09, /* 0x310f74f6 */
-C6  = -1.1359647598e-11; /* 0xad47d74e */
-
-#ifdef __STDC__
-       float __kernel_cosf(float x, float y)
-#else
-       float __kernel_cosf(x, y)
-       float x,y;
-#endif
-{
-       float a,hz,z,r,qx;
-       __int32_t ix;
-       GET_FLOAT_WORD(ix,x);
-       ix &= 0x7fffffff;                       /* ix = |x|'s high word*/
-       if(ix<0x32000000) {                     /* if x < 2**27 */
-           if(((int)x)==0) return one;         /* generate inexact */
-       }
-       z  = x*x;
-       r  = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6)))));
-       if(ix < 0x3e99999a)                     /* if |x| < 0.3 */ 
-           return one - ((float)0.5*z - (z*r - x*y));
-       else {
-           if(ix > 0x3f480000) {               /* x > 0.78125 */
-               qx = (float)0.28125;
-           } else {
-               SET_FLOAT_WORD(qx,ix-0x01000000);       /* x/4 */
-           }
-           hz = (float)0.5*z-qx;
-           a  = one-qx;
-           return a - (hz - (z*r-x*y));
-       }
-}