Accessing C floating point data type in MCL

[lam@ai-pluto.jpl.nasa.gov (Ray Lam)]

Hi,
				I'm looking for a function simular to "%get-long" but it will work on 
a ptr to a floating point number in C. I was looking into the
ff-source.lisp
file and found the function "%get-x2float". Can anyone tell me what that
function does?

	  Also, Can anyone tell me how a FLOAT datatype in C is represented in a
32  and 64 bits? Where is the exponent and where is the mantissa. Thanks in
advance.

Ray Lam
lam@ai-pluto.jpl.nasa.gov

			Finally,