auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 49 deletions

diff --git a/libm/src/e_acoshf.c b/libm/src/e_acoshf.c
deleted file mode 100644
index 5257914..0000000
--- a/libm/src/e_acoshf.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* e_acoshf.c -- float version of e_acosh.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.
- * ====================================================
- */
-
-#ifndef lint
-static char rcsid[] = "$FreeBSD: src/lib/msun/src/e_acoshf.c,v 1.7 2002/05/28 17:03:12 alfred Exp $";
-#endif
-
-#include "math.h"
-#include "math_private.h"
-
-static const float
-one	= 1.0,
-ln2	= 6.9314718246e-01;  /* 0x3f317218 */
-
-float
-__ieee754_acoshf(float x)
-{
-	float t;
-	int32_t hx;
-	GET_FLOAT_WORD(hx,x);
-	if(hx<0x3f800000) {		/* x < 1 */
-	    return (x-x)/(x-x);
-	} else if(hx >=0x4d800000) {	/* x > 2**28 */
-	    if(hx >=0x7f800000) {	/* x is inf of NaN */
-	        return x+x;
-	    } else
-		return __ieee754_logf(x)+ln2;	/* acosh(huge)=log(2x) */
-	} else if (hx==0x3f800000) {
-	    return 0.0;			/* acosh(1) = 0 */
-	} else if (hx > 0x40000000) {	/* 2**28 > x > 2 */
-	    t=x*x;
-	    return __ieee754_logf((float)2.0*x-one/(x+__ieee754_sqrtf(t-one)));
-	} else {			/* 1<x<2 */
-	    t = x-one;
-	    return log1pf(t+__ieee754_sqrtf((float)2.0*t+t*t));
-	}
-}