NAME
	IEEEDPCeil -- compute Ceil function of IEEE double precision number

   SYNOPSIS
	  x   = IEEEDPCeil(  y  );
	d0/d1		   d0/d1

	double	x,y;

   FUNCTION
	Calculate the least integer greater than or equal to x and return it.
	This value may have more than 32 bits of significance.
	This identity is true.  Ceil(x) = -Floor(-x).

   INPUTS
	y -- IEEE double precision floating point value

   RESULT
	x -- IEEE double precision floating point value

   BUGS

   SEE ALSO
	IEEEDPFloor()

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