Adding UNION/MAP -- Feedback and tips pls!

[Toon Moene]

On 03/02/2013 04:19 PM, N.M. Maclaren wrote:

> There are good reasons for Fortran not standardising unions and going
> for CLASS(*) - unchecked unions are incompatible with strong typing.
> My vague recollection is that DEC UNION is unchecked, and it certainly
> allows the preservation of overlaid data, which is equally horrible.

I agree.  If we allow UNION/MAP, it should be behind a compile time 
option like the one for CRAY pointers; its rationale being to help 
people to move from the vendor specific extension to standard Fortran.

Kind regards,

-- 
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
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