On 01/02/2006, at 3:31 PM, Werner LEMBERG wrote:
When implementing a feature requires less work than a few
workarounds, isn't it time to implement the feature :-) ?
Hehe. Have a look at this ooooold patch which I've received six years
ago from Abramo.
......
If you find it useful, and someone invests time to update the code to
the current CVS (*together* with updates to the various documentation
files -- this takes much more time than applying the patch itself),
I'll add it.
Werner
Being illiterate in C and its ilk I can only guess that this patch is
about the evaluation of real expressions
wherever they may lurk in a groff document.
If so, I'm glad to see environment variables in it. I would add "atan2"
to the list of functions, more useful than
atan.
Error message on div by 0 is fine, but overflow may also occur by
dividing with some small
number as well. If I remember well, IEEE's NaN is where all the
exponent bits are 1 and the fraction
bits are not all 0. This could be (should be??) checked and an error
message given after the deed.
All this stuff brought back memories when I wrote a "fast" float
package for the PDP-8, pre-float_hardware
days. Jeez, we were young then.
Miklos
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