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! { dg-do run }

! PR52012 - tests of automatic reallocation on assignment for variable = array_intrinsic

!

! Contributed by Tobias Burnus and Dominique Dhumieres

!

  integer, allocatable :: a(:), b(:), e(:,:)

  integer :: c(1:5,1:5), d(1:5,1:5)

  allocate(b(3))

  b = [1,2,3]

! Shape conforms so bounds follow allocation.

  allocate (a(7:9))

  a = reshape( b, shape=[size(b)])

  if (any ([lbound(a), ubound(a), size(a), shape (a)] .ne. [7,9,3,3])) call abort

  deallocate (a)

! 'a' not allocated so lbound defaults to 1.

  a = reshape( b, shape=[size(b)])

  if (any ([lbound(a), ubound(a), size(a), shape (a)] .ne. [1,3,3,3])) call abort

  deallocate (a)

! Shape conforms so bounds follow allocation.

  allocate (a(0:0))

  a(0) = 1

  if (any ([lbound(a), ubound(a), size(a), shape (a)] .ne. [0,0,1,1])) call abort

! 'a' not allocated so lbound defaults to 1.

  e = matmul (c(2:5,:), d(:, 3:4))

  if (any ([lbound(e), ubound(e), size(e), shape (e)] .ne. [1,1,4,2,8,4,2])) call abort

  deallocate (e)

! Shape conforms so bounds follow allocation.

  allocate (e(4:7, 11:12))

  e = matmul (c(2:5,:), d(:, 3:4))

  if (any ([lbound(e), ubound(e), size(e), shape (e)] .ne. [4,11,7,12,8,4,2])) call abort

end