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(g77-295.info)No Pathological Implied-DO

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No Pathological Implied-DO
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   The `DO' variable for an implied-`DO' construct in a `DATA'
statement may not be used as the `DO' variable for an outer
implied-`DO' construct.  For example, this fragment is disallowed by
`g77':

     DATA ((A(I, I), I= 1, 10), I= 1, 10) /.../

This also is disallowed by Fortran 90, as it offers no additional
capabilities and would have a variety of possible meanings.

   Note that it is *very* unlikely that any production Fortran code
tries to use this unsupported construct.