if ((ix&0x7fffffff)==0) return -two25/zero;		 if (ix<0) return (x-x)/zero;
if ((ix&0x7fffffff)==0) return -two25/(x-x);		 if (ix<0) return (x-x)/(x-x);
	float __ieee754_logf(float x)#else	float __ieee754_logf(x)	float x;#endif{	float hfsq,f,s,z,R,w,t1,t2,dk;	int32_t k,ix,i,j;	GET_FLOAT_WORD(ix,x);	k=0;	if (ix < 0x00800000) {			/* x < 2**-126  */	    if ((ix&0x7fffffff)==0) 		return -two25/zero;		/* log(+-0)=-inf */	    if (ix<0) return (x-x)/zero;	/* log(-#) = NaN */	    k -= 25; x *= two25; /* subnormal number, scale up x */	    GET_FLOAT_WORD(ix,x);	} 	if (ix >= 0x7f800000) return x+x;	k += (ix>>23)-127;	ix &= 0x007fffff;	i = (ix+(0x95f64<<3))&0x800000;	SET_FLOAT_WORD(x,ix|(i^0x3f800000));	/* normalize x or x/2 */	k += (i>>23);	f = x-(float)1.0;	if((0x007fffff&(15+ix))<16) {	/* |f| < 2**-20 */	    if(f==zero) if(k==0) return zero;  else {dk=(float)k;				 return dk*ln2_hi+dk*ln2_lo;}	    R = f*f*((float)0.5-(float)0.33333333333333333*f);	    if(k==0) return f-R; else {dk=(float)k;	    	     return dk*ln2_hi-((R-dk*ln2_lo)-f);}	} 	s = f/((float)2.0+f); 	dk = (float)k;	z = s*s;	i = ix-(0x6147a<<3);	w = z*z;	j = (0x6b851<<3)-ix;	t1= w*(Lg2+w*(Lg4+w*Lg6)); 	t2= z*(Lg1+w*(Lg3+w*(Lg5+w*Lg7))); 	i |= j;	R = t2+t1;	if(i>0) {	    hfsq=(float)0.5*f*f;	    if(k==0) return f-(hfsq-s*(hfsq+R)); else		     return dk*ln2_hi-((hfsq-(s*(hfsq+R)+dk*ln2_lo))-f);	} else {	    if(k==0) return f-s*(f-R); else		     return dk*ln2_hi-((s*(f-R)-dk*ln2_lo)-f);	}}