(j3.2006) actual arguments of intrinsic functions

[Michael Ingrassia]

At least for intrinsic LEN the description in the Fortran 2003 standard says of the argument 

STRING that it "may be a scalar or an array".  

 

A scalar according to 2.4.4 is a "datum" that is not an array.

 

A datum according to the glossary is a "single quantity".  Beats me whether a function returning

CHARACTER can be a datum?

 

I haven't checked Fortran 2008 to see if it still uses "datum" as a technical term (when we already

have "data entity" to do the job).   Seems like one we could do without, and maybe that would

help answer questions like the one at hand.

 

                  --Michael I.

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