this ** works only with simple Real ???_(re)

Fri, 7 Feb 1997 16:06:45 +0100 (MET)

According to Sven Hilscher:
>
> ["**" problem]
>
> Put in what you want. The result is right for Real, but for __long__ Real  
> it's everytime the result = 1.0.

I get other results, too, but not the correct one.

> I think the conversion of the exponent  
> from Real to __long__ Real does'nt work:

Probably.  At the moment, the runtime library does not support
__modified__ types.  It was simply luck that your program did not
crash on the "writeln".

To do anything besides plain addition, multiplication, ... with __long__
Reals, you have to cast them to Real at the moment.  We are working on
it, but this does not have the highest priority for me:  On the 80x87,
all calculations are done with __long__ Reals anyway, and you only lose
precision when writing such a Real to memory, for example to do a "**"
or a "writeln".

For the moment I suggest to live with plain Reals.

Hope this helps,

    Peter

  Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer
peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201]
       maintainer GNU Pascal - http://home.pages.de/~gnu-pascal/ [970125]

Peter Gerwinski (peter@agnes.dida.physik.uni-essen.de)