Xref: utzoo comp.lang.c:11748 comp.std.c:248 sci.math:4359
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From: jgk@speech2.cs.cmu.edu (Joe Keane)
Newsgroups: comp.lang.c,comp.std.c,sci.math
Subject: Re: Floating point puzzle
Keywords: floating point representation
Message-ID: <2627@pt.cs.cmu.edu>
Date: 7 Aug 88 22:59:26 GMT
References: <3117@emory.uucp>
Sender: netnews@pt.cs.cmu.edu
Organization: Carnegie-Mellon University, CS/RI
Lines: 12

In article <3117@emory.uucp> riddle@emory.uucp (Larry Riddle) writes:
>However, my experiments seem to imply that floats have an 11
>bit biased exponent (offset by 1023) and only a 20 bit normalized
>mantissa, exactly the same as doubles, except double has a 52 bit
>mantissa.

(This belongs on comp.lang.c!)  The problem is, a float parameter gets
converted to double.  So you're looking at the first 32 bits of the
double representation.  To look at the float representation, use this:
	printf("x: %lx", * (long *) &x);

--Joe