GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libm/src/s_asinhf.c Lines: 0 14 0.0 %
Date: 2017-11-13 Branches: 0 12 0.0 %

Line Branch Exec Source
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/* s_asinhf.c -- float version of s_asinh.c.
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 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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 */
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/*
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 * ====================================================
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 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 *
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 * Developed at SunPro, a Sun Microsystems, Inc. business.
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 * Permission to use, copy, modify, and distribute this
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 * software is freely granted, provided that this notice
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 * is preserved.
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 * ====================================================
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 */
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#include "math.h"
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#include "math_private.h"
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static const float
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one =  1.0000000000e+00, /* 0x3F800000 */
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ln2 =  6.9314718246e-01, /* 0x3f317218 */
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huge=  1.0000000000e+30;
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float
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asinhf(float x)
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{
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	float t,w;
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	int32_t hx,ix;
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	GET_FLOAT_WORD(hx,x);
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	ix = hx&0x7fffffff;
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	if(ix>=0x7f800000) return x+x;	/* x is inf or NaN */
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	if(ix< 0x31800000) {	/* |x|<2**-28 */
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	    if(huge+x>one) return x;	/* return x inexact except 0 */
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	}
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	if(ix>0x4d800000) {	/* |x| > 2**28 */
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	    w = logf(fabsf(x))+ln2;
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	} else if (ix>0x40000000) {	/* 2**28 > |x| > 2.0 */
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	    t = fabsf(x);
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	    w = logf((float)2.0*t+one/(sqrtf(x*x+one)+t));
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	} else {		/* 2.0 > |x| > 2**-28 */
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	    t = x*x;
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	    w =log1pf(fabsf(x)+t/(one+sqrtf(one+t)));
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	}
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	if(hx>0) return w; else return -w;
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}