!>
!> DGET36 tests DTREXC, a routine for moving blocks (either 1 by 1 or
!> 2 by 2) on the diagonal of a matrix in real Schur form.  Thus, DLAEXC
!> computes an orthogonal matrix Q such that
!>
!>    Q' * T1 * Q  = T2
!>
!> and where one of the diagonal blocks of T1 (the one at row IFST) has
!> been moved to position ILST.
!>
!> The test code verifies that the residual Q'*T1*Q-T2 is small, that T2
!> is in Schur form, and that the final position of the IFST block is
!> ILST (within +-1).
!>
!> The test matrices are read from a file with logical unit number NIN.
!> 

RMAX

!>          RMAX is DOUBLE PRECISION
!>          Value of the largest test ratio.
!> 

LMAX

!>          LMAX is INTEGER
!>          Example number where largest test ratio achieved.
!> 

NINFO

!>          NINFO is INTEGER array, dimension (3)
!>          NINFO(J) is the number of examples where INFO=J.
!> 

KNT

!>          KNT is INTEGER
!>          Total number of examples tested.
!> 

NIN

!>          NIN is INTEGER
!>          Input logical unit number.
!> 

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