function foo(dist, p) result(value)
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integer :: value
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integer, intent(in) :: dist
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integer, intent(in) :: p
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value = dist+value
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end function foo
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program hello
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interface
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subroutine bar(a,b)
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integer, intent(in) :: a
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integer, intent(out) :: b
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end subroutine bar
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end interface
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integer :: a
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call bar(a,a)
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end program hello
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