__HI(x) = hx|sx; __LO(x) = lx;
ux.d = x; __HI(ux) = hx|sx; __LO(ux) = lx; x = ux.d;
	double __ieee754_fmod(double x, double y)#else	double __ieee754_fmod(x,y)	double x,y ;#endif{	int n,hx,hy,hz,ix,iy,sx,i;	unsigned lx,ly,lz;	hx = __HI(x);		/* high word of x */	lx = __LO(x);		/* low  word of x */	hy = __HI(y);		/* high word of y */	ly = __LO(y);		/* low  word of y */	sx = hx&0x80000000;		/* sign of x */	hx ^=sx;		/* |x| */	hy &= 0x7fffffff;	/* |y| */    /* purge off exception values */	if((hy|ly)==0||(hx>=0x7ff00000)||	/* y=0,or x not finite */	  ((hy|((ly|-(int)ly)>>31))>0x7ff00000))	/* or y is NaN */	    return (x*y)/(x*y);	if(hx<=hy) {	    if((hx<hy)||(lx<ly)) return x;	/* |x|<|y| return x */	    if(lx==ly) 		return Zero[(unsigned)sx>>31];	/* |x|=|y| return x*0*/	}    /* determine ix = ilogb(x) */	if(hx<0x00100000) {	/* subnormal x */	    if(hx==0) {		for (ix = -1043, i=lx; i>0; i<<=1) ix -=1;	    } else {		for (ix = -1022,i=(hx<<11); i>0; i<<=1) ix -=1;	    }	} else ix = (hx>>20)-1023;    /* determine iy = ilogb(y) */	if(hy<0x00100000) {	/* subnormal y */	    if(hy==0) {		for (iy = -1043, i=ly; i>0; i<<=1) iy -=1;	    } else {		for (iy = -1022,i=(hy<<11); i>0; i<<=1) iy -=1;	    }	} else iy = (hy>>20)-1023;    /* set up {hx,lx}, {hy,ly} and align y to x */	if(ix >= -1022) 	    hx = 0x00100000|(0x000fffff&hx);	else {		/* subnormal x, shift x to normal */	    n = -1022-ix;	    if(n<=31) {	        hx = (hx<<n)|(lx>>(32-n));	        lx <<= n;	    } else {		hx = lx<<(n-32);		lx = 0;	    }	}	if(iy >= -1022) 	    hy = 0x00100000|(0x000fffff&hy);	else {		/* subnormal y, shift y to normal */	    n = -1022-iy;	    if(n<=31) {	        hy = (hy<<n)|(ly>>(32-n));	        ly <<= n;	    } else {		hy = ly<<(n-32);		ly = 0;	    }	}    /* fix point fmod */	n = ix - iy;	while(n--) {	    hz=hx-hy;lz=lx-ly; if(lx<ly) hz -= 1;	    if(hz<0){hx = hx+hx+(lx>>31); lx = lx+lx;}	    else {	    	if((hz|lz)==0) 		/* return sign(x)*0 */		    return Zero[(unsigned)sx>>31];	    	hx = hz+hz+(lz>>31); lx = lz+lz;	    }	}	hz=hx-hy;lz=lx-ly; if(lx<ly) hz -= 1;	if(hz>=0) {hx=hz;lx=lz;}    /* convert back to floating value and restore the sign */	if((hx|lx)==0) 			/* return sign(x)*0 */	    return Zero[(unsigned)sx>>31];		while(hx<0x00100000) {		/* normalize x */	    hx = hx+hx+(lx>>31); lx = lx+lx;	    iy -= 1;	}	if(iy>= -1022) {	/* normalize output */	    hx = ((hx-0x00100000)|((iy+1023)<<20));	    __HI(x) = hx|sx;	    __LO(x) = lx;	} else {		/* subnormal output */	    n = -1022 - iy;	    if(n<=20) {		lx = (lx>>n)|((unsigned)hx<<(32-n));		hx >>= n;	    } else if (n<=31) {		lx = (hx<<(32-n))|(lx>>n); hx = sx;	    } else {		lx = hx>>(n-32); hx = sx;	    }	    __HI(x) = hx|sx;	    __LO(x) = lx;	    x *= one;		/* create necessary signal */	}	return x;		/* exact output */}