(j3.2006) Fortran 2003 question

Bill Long longb
Wed Jul 31 17:36:58 EDT 2013

I don't think the underlying text has changed for a while.  16.6.5, para 
1  item (12) [page 454] of F2008 seems like old text to me.  Argument 
association is a form of association.

[Why any interest in F2003 at this point?]


On 7/31/13 4:17 PM, Robert Corbett wrote:
> On 07/31/13 05:45, Bill Long wrote:
>> Ultimately, 6.3 says "redefinition of a constant is never permitted".
> A dummy argument that is a data object is a variable, not a constant.  How does
> the Fortran 2003 standard establish that redefinition of the dummy argument
> constitutes a redefinition of the actual argument?  Suppose an expression
> appeared as the actual argument.  What would prevent its redefinition?
> This issue is clarified in the Fortran 2008 standard.  Paragraph 5 of Clause
> 5.3.10 [97:32-33] covers both the case of the constant and the case of the
> expression.  I have been unable to find an equivalent statement in the Fortran
> 2003 standard.
> I think the statement is in the wrong context (Clause 5.3.10 is not where I
> think most people would expect to find such a restriction), but at least it is
> present in the standard.
> Bob Corbett
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Bill Long                                           longb at cray.com
Fortran Technical Support    &                 voice: 651-605-9024
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