sint_1d_backward Subroutine

public subroutine sint_1d_backward(func)

Arguments

Type IntentOptional Attributes Name
real(kind=8), intent(inout), dimension(:) :: func

Calls

proc~~sint_1d_backward~2~~CallsGraph proc~sint_1d_backward~2 sint_1d_backward sint1b sint1b proc~sint_1d_backward~2->sint1b sint1i sint1i proc~sint_1d_backward~2->sint1i

Called by

proc~~sint_1d_backward~2~~CalledByGraph proc~sint_1d_backward~2 sint_1d_backward interface~isinft~2 isinft interface~isinft~2->proc~sint_1d_backward~2

Source Code

  subroutine sint_1d_backward(func)
    real(8),dimension(:),intent(inout) :: func
    real(8),dimension(:),allocatable   :: wsave,work
    integer                            :: N,lenwrk,lensav,lenr,inc,ier
    N      = size(func)
    lensav = N/2 + N + int( log(dble(N))/log(2.d0) ) + 4
    lenwrk = 2*(N+1)
    lenr   = N
    inc    = 1
    allocate(wsave(lensav))
    allocate(work(lenwrk))
    call sint1i(N,wsave,lensav,ier)
    if(ier==2)stop "sint_1d_backward: LENSAV not big enough"
    if(ier==20)stop "sint_1d_backward: error returned by lower level routine"
    call sint1b(N,inc,func,lenr,wsave,lensav,work,lenwrk,ier)
    deallocate(wsave,work)
    select case(ier)
    case (0)
       return
    case (1)
       stop "sint_1d_backward: LENR not big enough"
    case (2)
       stop "sint_1d_backward: LENSAV not big enough"
    case (3)
       stop "sint_1d_backward: LENWRK not big enough"
    case (20)
       stop "sint_1d_backward: input error returned by lower level routine"
    end select
  end subroutine sint_1d_backward