GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libm/src/s_frexpf.c Lines: 0 13 0.0 %
Date: 2017-11-13 Branches: 0 4 0.0 %

Line Branch Exec Source
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/* s_frexpf.c -- float version of s_frexp.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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two25 =  3.3554432000e+07; /* 0x4c000000 */
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float
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frexpf(float x, int *eptr)
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{
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	int32_t hx,ix;
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	GET_FLOAT_WORD(hx,x);
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	ix = 0x7fffffff&hx;
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	*eptr = 0;
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	if(ix>=0x7f800000||(ix==0)) return x;	/* 0,inf,nan */
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	if (ix<0x00800000) {		/* subnormal */
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	    x *= two25;
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	    GET_FLOAT_WORD(hx,x);
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	    ix = hx&0x7fffffff;
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	    *eptr = -25;
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	}
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	*eptr += (ix>>23)-126;
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	hx = (hx&0x807fffff)|0x3f000000;
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	SET_FLOAT_WORD(x,hx);
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	return x;
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}