An array specification (or array declarator) declares the shape of
  an array.  It takes the following form:

    (array-spec)

    array-spec   Is one of the following array specifications:

                 Explicit-shape
                 Assumed-shape
                 Assumed-size
                 Deferred-shape

  The array specification is appended to the name of the array when
  the array is declared.

  The following examples show different forms of array
  specifications:

  SUBROUTINE SUB(N, C, D, Z)
    REAL, DIMENSION(N, 15) :: IARRY  ! An explicit-shape array
    REAL C(:), D(0:)                 ! An assumed-shape array
    REAL, POINTER :: B(:,:)          ! A deferred-shape array pointer
    REAL :: Z(N,*)                   ! An assumed-size array

    REAL, ALLOCATABLE, DIMENSION(:) :: K  ! A deferred-shape
                                          !    allocatable array