! Program to test assumed size arrays
subroutine test2(p)
integer, dimension(2, *) :: p
if (any (p(:, 1:3) .ne. reshape((/1, 2, 4, 5, 7, 8/), (/2, 3/)))) &
call abort ()
end subroutine
program assumed_size
integer, dimension (3, 3) :: a
external test2
a = reshape ((/1, 2, 3, 4, 5, 6, 7, 8, 9/), (/3, 3/))
call test1(a, (/1, 2, 3, 4, 5, 6/))
if (a(1,1) .ne. 0) call abort
a(1, 1) = 1
call test1(a(1:2, :), (/1, 2, 4, 5, 7, 8/))
if (a(1,1) .ne. 0) call abort
a(1, 1) = 1
call test1(a(3:1:-1, :), (/3, 2, 1, 6, 5, 4/))
if (a(3,1) .ne. 0) call abort
a(3, 1) = 3
call test1(a(:, 2:3), (/4, 5, 6, 7, 8, 9/))
if (a(1, 2) .ne. 0) call abort
a(1, 2) = 4
call test2(a(1:2, :))
call test2((/1, 2, 4, 5, 7, 8/))
contains
subroutine test1(p, q)
integer, dimension(*) :: p
integer, dimension(1:) :: q
if (any (p(1:size(q)) .ne. q)) call abort ()
p(1) = 0
end subroutine
end program