Larry Webber <thecoots@[EMAIL PROTECTED]
> writes:
>On Sat, 22 Mar 2008 19:28:34 -0700, Bruce McFarling wrote:
>
>> On Mar 22, 7:57 pm, Larry Webber <theco...@[EMAIL PROTECTED]
> wrote:
>>> I am using both gforth and an alpha release of vfxlin forth. What is
>>> the recommended way of writing floating point values to a file? For
>>> writing integer values there are the "pictured number conversion"
>>> words. What is the recommended ****table way to do this with gforth and
>>> vfxlin?
>>
>> Not because I know the answer, but because I'm interested in hearing
it:
>>
>> (1) Are you asking about writing a text string representing the
floating
>> point value for later display?
>>
>> (2) Or are you asking about writing a floating point value in binary
>> form for later retrieval and computation?
>
>Bruce,
>
>The latter.
There is no ****table way (yet) to deal with byte order, but other than
that, what you can do is store the floats with DF! into a buffer, and
write the buffer with WRITE-FILE into a file (which should have been
opened with BIN).
Concerning byte order, you can of course deal with it yourself, e.g.,
by defining DF!N, which always stores in big-endian order, and DF@[EMAIL PROTECTED]
fetches a big-endian IEEE double float.
>A friend was able to "get under the hood" of gforth and figure out how to
>vector the output to a file but we would like a more straight forward
>method which is implementation neutral. I don't see a straightforward way
>of doing this presently.
WRITE-FILE. I wonder why anybody would want to get under the hood for
that.
- anton
--
M. Anton Ertl http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
New standard: http://www.forth200x.org/forth200x.html
EuroForth 2008:
http://www.complang.tuwien.ac.at/anton/euroforth/ef08.html
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