```    Program f08fqfe

!     F08FQF Example Program Text

!     Mark 25 Release. NAG Copyright 2014.

!     .. Use Statements ..
Use nag_library, Only: blas_zamax_val, nag_wp, x04daf, zheevd
!     .. Implicit None Statement ..
Implicit None
!     .. Parameters ..
Integer, Parameter               :: nin = 5, nout = 6
!     .. Local Scalars ..
Real (Kind=nag_wp)               :: r
Integer                          :: i, ifail, info, k, lda, liwork,      &
lrwork, lwork, n
Character (1)                    :: job, uplo
!     .. Local Arrays ..
Complex (Kind=nag_wp), Allocatable :: a(:,:), work(:)
Real (Kind=nag_wp), Allocatable  :: rwork(:), w(:)
Integer, Allocatable             :: iwork(:)
!     .. Intrinsic Procedures ..
Intrinsic                        :: abs, cmplx, conjg
!     .. Executable Statements ..
Write (nout,*) 'F08FQF Example Program Results'
!     Skip heading in data file
lda = n
liwork = 5*n + 3
lrwork = 2*n*n + 5*n + 1
lwork = n*(n+2)
Allocate (a(lda,n),work(lwork),rwork(lrwork),w(n),iwork(liwork))

!     Read A from data file

If (uplo=='U') Then
Else If (uplo=='L') Then
End If

!     Calculate all the eigenvalues and eigenvectors of A
!     The NAG name equivalent of zheevd is f08fqf
Call zheevd(job,uplo,n,a,lda,w,work,lwork,rwork,lrwork,iwork,liwork, &
info)

Write (nout,*)
If (info>0) Then
Write (nout,*) 'Failure to converge.'
Else

!       Print eigenvalues and eigenvectors

Write (nout,*) 'Eigenvalues'
Do i = 1, n
Write (nout,99999) i, w(i)
End Do
Write (nout,*)
Flush (nout)

!       Normalize the eigenvectors so that the element of largest absolute
!       value is real.
Do i = 1, n
Call blas_zamax_val(n,a(1,i),1,k,r)
a(1:n,i) = a(1:n,i)*(conjg(a(k,i))/cmplx(abs(a(k,i)),kind=nag_wp))
End Do

!       ifail: behaviour on error exit
!              =0 for hard exit, =1 for quiet-soft, =-1 for noisy-soft
ifail = 0
Call x04daf('General',' ',n,n,a,lda,'Eigenvectors',ifail)

End If

99999 Format (3X,I5,5X,2F8.4)
End Program f08fqfe
```