proc cumsum(c: ptr UncheckedArray[uint8]; n: uint) {....raises: [], tags: [],
    forbids: [].}

proc cumsum(c: ptr UncheckedArray[uint16]; n: uint) {....raises: [], tags: [],
    forbids: [].}

proc cumsum(c: ptr UncheckedArray[uint32]; n: uint) {....raises: [], tags: [],
    forbids: [].}

proc cumsum(c: ptr UncheckedArray[uint64]; n: uint) {....raises: [], tags: [],
    forbids: [].}

proc cumsum[T](c: ptr T; n: uint) {.inline.}

proc cumsum[T](c: ptr UncheckedArray[T]; n: uint)

proc cumsum[T](c: var openArray[T]) {.inline.}