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-rw-r--r--src/math/e_sqrtf.c85
1 files changed, 0 insertions, 85 deletions
diff --git a/src/math/e_sqrtf.c b/src/math/e_sqrtf.c
deleted file mode 100644
index 03a15beb..00000000
--- a/src/math/e_sqrtf.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/* e_sqrtf.c -- float version of e_sqrt.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     = 1.0, tiny=1.0e-30;
-
-float
-sqrtf(float x)
-{
-        float z;
-        int32_t sign = (int)0x80000000;
-        int32_t ix,s,q,m,t,i;
-        uint32_t r;
-
-        GET_FLOAT_WORD(ix,x);
-
-    /* take care of Inf and NaN */
-        if((ix&0x7f800000)==0x7f800000) {
-            return x*x+x;               /* sqrt(NaN)=NaN, sqrt(+inf)=+inf
-                                           sqrt(-inf)=sNaN */
-        }
-    /* take care of zero */
-        if(ix<=0) {
-            if((ix&(~sign))==0) return x;/* sqrt(+-0) = +-0 */
-            else if(ix<0)
-                return (x-x)/(x-x);             /* sqrt(-ve) = sNaN */
-        }
-    /* normalize x */
-        m = (ix>>23);
-        if(m==0) {                              /* subnormal x */
-            for(i=0;(ix&0x00800000)==0;i++) ix<<=1;
-            m -= i-1;
-        }
-        m -= 127;       /* unbias exponent */
-        ix = (ix&0x007fffff)|0x00800000;
-        if(m&1) /* odd m, double x to make it even */
-            ix += ix;
-        m >>= 1;        /* m = [m/2] */
-
-    /* generate sqrt(x) bit by bit */
-        ix += ix;
-        q = s = 0;              /* q = sqrt(x) */
-        r = 0x01000000;         /* r = moving bit from right to left */
-
-        while(r!=0) {
-            t = s+r;
-            if(t<=ix) {
-                s    = t+r;
-                ix  -= t;
-                q   += r;
-            }
-            ix += ix;
-            r>>=1;
-        }
-
-    /* use floating add to find out rounding direction */
-        if(ix!=0) {
-            z = one-tiny; /* trigger inexact flag */
-            if (z>=one) {
-                z = one+tiny;
-                if (z>one)
-                    q += 2;
-                else
-                    q += (q&1);
-            }
-        }
-        ix = (q>>1)+0x3f000000;
-        ix += (m <<23);
-        SET_FLOAT_WORD(z,ix);
-        return z;
-}