[J3] Self-assignment of allocatable component

[Vipul Parekh]

On Mon, Jul 26, 2021 at 3:17 PM Daniel C Chen via J3 <
j3 at mailman.j3-fortran.org> wrote:

> ..
> Apprently p%i is unallocated after the self-assignment. Is this code still
> standard conforming?
>

Hi Daniel,

Interesting question!  3 different compilers I have access to indicate
"p%i" is indeed allocated after the "self-assignment"!

I look forward to the discussion.  Paragraph 1 in section 10.2.1.3
Interpretation of intrinsic assignments [p170:11-16] reads as the
assignment you show can be interpreted *as though* it were *equivalent* to:
   block
      type(dt) :: tmp
      tmp = p
      p = tmp
   end block

thereby leaving "p%i" as allocated and which is what the 3 processors I
tried appeared to be doing.

Regards,
Vipul Parekh
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