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219 lines
6.0 KiB
219 lines
6.0 KiB
2 years ago
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*> \brief \b ALAREQ
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*
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* =========== DOCUMENTATION ===========
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*
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* Online html documentation available at
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* http://www.netlib.org/lapack/explore-html/
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*
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* Definition:
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* ===========
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*
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* SUBROUTINE ALAREQ( PATH, NMATS, DOTYPE, NTYPES, NIN, NOUT )
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*
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* .. Scalar Arguments ..
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* CHARACTER*3 PATH
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* INTEGER NIN, NMATS, NOUT, NTYPES
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* ..
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* .. Array Arguments ..
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* LOGICAL DOTYPE( * )
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* ..
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*
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*
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*> \par Purpose:
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* =============
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*>
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*> \verbatim
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*>
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*> ALAREQ handles input for the LAPACK test program. It is called
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*> to evaluate the input line which requested NMATS matrix types for
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*> PATH. The flow of control is as follows:
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*>
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*> If NMATS = NTYPES then
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*> DOTYPE(1:NTYPES) = .TRUE.
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*> else
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*> Read the next input line for NMATS matrix types
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*> Set DOTYPE(I) = .TRUE. for each valid type I
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*> endif
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*> \endverbatim
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*
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* Arguments:
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* ==========
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*
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*> \param[in] PATH
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*> \verbatim
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*> PATH is CHARACTER*3
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*> An LAPACK path name for testing.
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*> \endverbatim
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*>
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*> \param[in] NMATS
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*> \verbatim
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*> NMATS is INTEGER
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*> The number of matrix types to be used in testing this path.
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*> \endverbatim
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*>
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*> \param[out] DOTYPE
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*> \verbatim
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*> DOTYPE is LOGICAL array, dimension (NTYPES)
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*> The vector of flags indicating if each type will be tested.
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*> \endverbatim
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*>
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*> \param[in] NTYPES
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*> \verbatim
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*> NTYPES is INTEGER
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*> The maximum number of matrix types for this path.
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*> \endverbatim
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*>
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*> \param[in] NIN
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*> \verbatim
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*> NIN is INTEGER
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*> The unit number for input. NIN >= 1.
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*> \endverbatim
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*>
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*> \param[in] NOUT
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*> \verbatim
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*> NOUT is INTEGER
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*> The unit number for output. NOUT >= 1.
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*> \endverbatim
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*
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* Authors:
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* ========
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*
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*> \author Univ. of Tennessee
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*> \author Univ. of California Berkeley
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*> \author Univ. of Colorado Denver
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*> \author NAG Ltd.
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*
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*> \ingroup aux_eig
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*
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* =====================================================================
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SUBROUTINE ALAREQ( PATH, NMATS, DOTYPE, NTYPES, NIN, NOUT )
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*
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* -- LAPACK test routine --
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* -- LAPACK is a software package provided by Univ. of Tennessee, --
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* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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*
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* .. Scalar Arguments ..
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CHARACTER*3 PATH
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INTEGER NIN, NMATS, NOUT, NTYPES
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* ..
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* .. Array Arguments ..
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LOGICAL DOTYPE( * )
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* ..
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*
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* =====================================================================
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*
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* .. Local Scalars ..
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LOGICAL FIRSTT
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CHARACTER C1
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CHARACTER*10 INTSTR
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CHARACTER*80 LINE
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INTEGER I, I1, IC, J, K, LENP, NT
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* ..
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* .. Local Arrays ..
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INTEGER NREQ( 100 )
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* ..
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* .. Intrinsic Functions ..
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INTRINSIC LEN
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* ..
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* .. Data statements ..
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DATA INTSTR / '0123456789' /
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* ..
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* .. Executable Statements ..
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*
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IF( NMATS.GE.NTYPES ) THEN
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*
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* Test everything if NMATS >= NTYPES.
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*
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DO 10 I = 1, NTYPES
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DOTYPE( I ) = .TRUE.
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10 CONTINUE
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ELSE
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DO 20 I = 1, NTYPES
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DOTYPE( I ) = .FALSE.
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20 CONTINUE
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FIRSTT = .TRUE.
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*
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* Read a line of matrix types if 0 < NMATS < NTYPES.
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*
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IF( NMATS.GT.0 ) THEN
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READ( NIN, FMT = '(A80)', END = 90 )LINE
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LENP = LEN( LINE )
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I = 0
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DO 60 J = 1, NMATS
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NREQ( J ) = 0
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I1 = 0
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30 CONTINUE
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I = I + 1
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IF( I.GT.LENP ) THEN
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IF( J.EQ.NMATS .AND. I1.GT.0 ) THEN
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GO TO 60
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ELSE
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WRITE( NOUT, FMT = 9995 )LINE
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WRITE( NOUT, FMT = 9994 )NMATS
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GO TO 80
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END IF
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END IF
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IF( LINE( I: I ).NE.' ' .AND. LINE( I: I ).NE.',' ) THEN
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I1 = I
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C1 = LINE( I1: I1 )
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*
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* Check that a valid integer was read
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*
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DO 40 K = 1, 10
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IF( C1.EQ.INTSTR( K: K ) ) THEN
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IC = K - 1
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GO TO 50
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END IF
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40 CONTINUE
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WRITE( NOUT, FMT = 9996 )I, LINE
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WRITE( NOUT, FMT = 9994 )NMATS
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GO TO 80
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50 CONTINUE
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NREQ( J ) = 10*NREQ( J ) + IC
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GO TO 30
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ELSE IF( I1.GT.0 ) THEN
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GO TO 60
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ELSE
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GO TO 30
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END IF
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60 CONTINUE
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END IF
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DO 70 I = 1, NMATS
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NT = NREQ( I )
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IF( NT.GT.0 .AND. NT.LE.NTYPES ) THEN
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IF( DOTYPE( NT ) ) THEN
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IF( FIRSTT )
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$ WRITE( NOUT, FMT = * )
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FIRSTT = .FALSE.
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WRITE( NOUT, FMT = 9997 )NT, PATH
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END IF
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DOTYPE( NT ) = .TRUE.
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ELSE
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WRITE( NOUT, FMT = 9999 )PATH, NT, NTYPES
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9999 FORMAT( ' *** Invalid type request for ', A3, ', type ',
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$ I4, ': must satisfy 1 <= type <= ', I2 )
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END IF
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70 CONTINUE
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80 CONTINUE
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END IF
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RETURN
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*
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90 CONTINUE
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WRITE( NOUT, FMT = 9998 )PATH
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9998 FORMAT( /' *** End of file reached when trying to read matrix ',
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$ 'types for ', A3, /' *** Check that you are requesting the',
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$ ' right number of types for each path', / )
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9997 FORMAT( ' *** Warning: duplicate request of matrix type ', I2,
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$ ' for ', A3 )
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9996 FORMAT( //' *** Invalid integer value in column ', I2,
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$ ' of input', ' line:', /A79 )
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9995 FORMAT( //' *** Not enough matrix types on input line', /A79 )
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9994 FORMAT( ' ==> Specify ', I4, ' matrix types on this line or ',
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$ 'adjust NTYPES on previous line' )
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WRITE( NOUT, FMT = * )
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STOP
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*
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* End of ALAREQ
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*
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END
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