Program f07ad_p0w_fe

!     F07AD_P0W_F Example Program Text
!     Mark 28.7 Release. NAG Copyright 2022.

!     .. Use Statements ..
      Use iso_c_binding, Only: c_ptr
      Use nagad_library, Only: f07ad_p0w_f, f07aj_p0w_f
      Use nag_library, Only: nag_wp, x04caf
!     .. Implicit None Statement ..
      Implicit None
!     .. Parameters ..
      Integer, Parameter               :: nin = 5, nout = 6
!     .. Local Scalars ..
      Type (c_ptr)                     :: ad_handle
      Integer                          :: i, ifail, lwork, n
!     .. Local Arrays ..
      Real (Kind=nag_wp), Allocatable  :: a(:,:), work(:)
      Integer, Allocatable             :: ipiv(:)
!     .. Executable Statements ..
      Write (nout,*) 'F07AD_P0W_F Example Program Results'
!     Skip heading in data file
      Read (nin,*)
      Read (nin,*) n

      lwork = 64*n
      Allocate (a(n,n),ipiv(n),work(lwork))

!     Read A from data file
      Read (nin,*)(a(i,1:n),i=1,n)

!     Factorize A
      ifail = 0
      Call f07ad_p0w_f(ad_handle,n,n,a,n,ipiv,ifail)

!     Compute inverse
      Call f07aj_p0w_f(ad_handle,n,a,n,ipiv,work,lwork,ifail)

      Write (nout,*)
      Flush (nout)
!     ifail: behaviour on error exit
!            =0 for hard exit, =1 for quiet-soft, =-1 for noisy-soft
      ifail = 0
      Call x04caf('General',' ',n,n,a,n,'Inverse',ifail)

    End Program f07ad_p0w_fe