(j3.2006) (SC22WG5.4572) [ukfortran] Second WG5 ballot oninterpretations

[Malcolm Cohen]

>I do not agree that the restrictions on DIM arguments are
>pointless.  While they are not necessary to permit conforming
>implementations, they simplify code generation and allow more
>efficient code to be generated in some cases.

No they don't.  Appearance of a previously-prohibited optional dummy with this 
interp has precisely the same meaning as it appearing parenthesised would, i.e. 
there is no passing-on of the optionality.

Since there is no passing-on of the optionality (an absent one is not 
permitted), you will need a concrete counter-example to demonstrate different 
semantics.

Cheers,
-- 
................................Malcolm Cohen, Nihon NAG, Tokyo.