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program arrays_11
implicit none
integer :: x(10), y(10), i
logical :: r
do i = 1, size(x)
x(i) = i
end do
call sub(size(x), x, y)
r = verify(x, y)
print *, r
if (.not. r) error stop
contains
subroutine sub(n, a, b)
integer, intent(in) :: n
integer, intent(in) :: a(n)
integer, intent(out) :: b(n)
integer :: i
do i = 1, size(a)
b(i) = a(i)
end do
end subroutine
logical function verify(a, b) result(r)
integer, intent(in) :: a(:), b(:)
integer :: i
r = .true.
do i = 1, size(a)
r = r .and. (a(i) == b(i))
end do
end function
end
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