Here's a challenge for floating point lovers.

[Stanley Friesen]

In article <14964 at smoke.brl.mil> gwyn at smoke.brl.mil (Doug Gwyn) writes:
>Oops, I missed that; thanks for the correction.  FLT_RADIX then is okay
>for use in #if expressions, but the other <float.h> macros aren't, not
>even FLT_ROUNDS.

To emphasize this point, I had occasion to look at float.h for SysVr4
a bit ago and it defined FLT_ROUNDS as follows:

#define FLT_ROUNDS (__flt_rounds)

(At least if __STDC__ is defined as 1)

So, there exists an ANSI compliant C compiler that in fact
makes use of this permission for a non-constant float expression.
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uunet!tdatirv!sarima				(Stanley Friesen)