!>
!> CLCTES returns .TRUE. if the eigenvalue Z/D is to be selected
!> (specifically, in this subroutine, if the real part of the
!> eigenvalue is negative), and otherwise it returns .FALSE..
!>
!> It is used by the test routine CDRGES to test whether the driver
!> routine CGGES successfully sorts eigenvalues.
!> 

Z

!>          Z is COMPLEX
!>          The numerator part of a complex eigenvalue Z/D.
!> 

D

!>          D is COMPLEX
!>          The denominator part of a complex eigenvalue Z/D.
!> 

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