init_actv Subroutine

  subroutine init_actv(this, input_shape, verbose)
    !! Initialise activation layer
    implicit none

    ! Arguments
    class(actv_layer_type), intent(inout) :: this
    !! Instance of the activation layer
    integer, dimension(:), intent(in) :: input_shape
    !! Input shape
    integer, optional, intent(in) :: verbose
    !! Verbosity level

    ! Local variables
    integer :: verbose_ = 0
    !! Verbosity level


    !---------------------------------------------------------------------------
    ! initialise optional arguments
    !---------------------------------------------------------------------------
    if(present(verbose)) verbose_ = verbose


    !---------------------------------------------------------------------------
    ! initialise input shape
    !---------------------------------------------------------------------------
    this%input_rank = size(input_shape, dim=1)
    this%output_rank = this%input_rank
    if(.not.allocated(this%input_shape)) call this%set_shape(input_shape)
    this%output_shape = this%input_shape


    !---------------------------------------------------------------------------
    ! Allocate arrays
    !---------------------------------------------------------------------------
    if(this%use_graph_input)then
       call stop_program( &
            "Graph input not supported for activation layer" &
       )
       return
    end if
    if(allocated(this%output)) deallocate(this%output)
    allocate(this%output(1,1))

  end subroutine init_actv