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Re: Union in IDL? [message #16257]

Mon, 12 July 1999 00:00

Alex Schuster
Messages: 124
Registered: February 1997

Senior Member

Guido Lemoine wrote:

> Is there a way to convert a bytarr of length N_TYPE to TYPE?
>
> For instance, if TYPE = DOUBLE (so, N_TYPE=8), how do I convert the
> bytarr(8) to DOUBLE. I am looking for something like the UNION
> construction in C (i.e. which allows you, more or less, to reference a
> piece of memory as more then one type).
[...]
> I need to convert these back to doubles (but double(BYTARR) doesn't
> work, of course...).

That's right, but double(byte_array,0) does the trick.

Alex
--
Alex Schuster Wonko@weird.cologne.de PGP Key available
alex@pet.mpin-koeln.mpg.de

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