MOVE_ALLOC to grow an array

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@Beliavsky , it’s good you’re seeking comments. My suggestion will be for you to work harder, much much harder and give your drafts a lot more thought so that you can make them as brief as possible before tweeting.

In the case of MOVE_ALLOC for this use case, for example you can start with something as follows and make it further compact:

! canonical method to grow an array:
! say a and tmp are rank-1 objects of the same type (and kind)  and
! tmp is allocated to desired new shape for a
   tmp( 1:size(a) ) = a
   tmp( size(a)+1: ) = .. ! data to be added
   call move_alloc( from=tmp, to=a )

And that a couple of other options include:

! array constructor
   a = [ a, [ .. ] ]

! RESHAPE intrinsic function
   a = reshape( a, shape=[ new_shape ], pad=.. )

In my opinion, your tips thus far have been verbose.