text: /* Single precision version of nexttoward.c.
     Conversion to IEEE single float by Jakub Jelinek, jj@ultra.linux.cz. */
  /*
   * ====================================================
   * 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.
   * ====================================================
   */
  
  /* IEEE functions
   *	__nexttowardfd(x,y)
   *	return the next machine floating-point number of x in the
   *	direction toward y.
   * This is for machines which use different binary type for double and
   * long double conditionally, y is long double equal to double.
   *   Special cases:
   */
  
  #include <errno.h>
  #include <math.h>
  #include <math-barriers.h>
  #include <math_private.h>
  #include <math_ldbl_opt.h>
  #include <float.h>
  
  float __nldbl_nexttowardf(float x, double y);
  
  float __nldbl_nexttowardf(float x, double y)
  {
  	int32_t hx,hy,ix,iy;
  	uint32_t ly;
  
  	GET_FLOAT_WORD(hx,x);
  	EXTRACT_WORDS(hy,ly,y);
  	ix = hx&0x7fffffff;		/* |x| */
  	iy = hy&0x7fffffff;		/* |y| */
  
  	if((ix>0x7f800000) ||				   /* x is nan */
  	   ((iy>=0x7ff00000)&&((iy-0x7ff00000)|ly)!=0))    /* y is nan */
  	   return x+y;
  	if((double) x==y) return y;		/* x=y, return y */
  	if(ix==0) {				/* x == 0 */
  	    float u;
  	    SET_FLOAT_WORD(x,(uint32_t)(hy&0x80000000)|1);/* return +-minsub*/
  	    u = math_opt_barrier (x);
  	    u = u * u;
  	    math_force_eval (u);		/* raise underflow flag */
  	    return x;
  	}
  	if(hx>=0) {				/* x > 0 */
  	    if(x > y)				/* x -= ulp */
  		hx -= 1;
  	    else				/* x < y, x += ulp */
  		hx += 1;
  	} else {				/* x < 0 */
  	    if(x < y)				/* x -= ulp */
  		hx -= 1;
  	    else				/* x > y, x += ulp */
  		hx += 1;
  	}
  	hy = hx&0x7f800000;
  	if(hy>=0x7f800000) {
  	  float u = x+x;			/* overflow  */
  	  math_force_eval (u);
  	  __set_errno (ERANGE);
  	}
  	if(hy<0x00800000) {
  	    float u = x*x;			/* underflow */
  	    math_force_eval (u);		/* raise underflow flag */
  	    __set_errno (ERANGE);
  	}
  	SET_FLOAT_WORD(x,hx);
  	return x;
  }
  
  #if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
  compat_symbol (libm, __nldbl_nexttowardf, nexttowardf, GLIBC_2_1);
  #endif
  