--- rpl/lapack/lapack/dlaqr1.f	2017/06/17 11:06:24	1.16
+++ rpl/lapack/lapack/dlaqr1.f	2023/08/07 08:38:55	1.20
@@ -55,21 +55,21 @@
 *
 *> \param[in] N
 *> \verbatim
-*>          N is integer
+*>          N is INTEGER
 *>              Order of the matrix H. N must be either 2 or 3.
 *> \endverbatim
 *>
 *> \param[in] H
 *> \verbatim
-*>          H is DOUBLE PRECISION array of dimension (LDH,N)
+*>          H is DOUBLE PRECISION array, dimension (LDH,N)
 *>              The 2-by-2 or 3-by-3 matrix H in (*).
 *> \endverbatim
 *>
 *> \param[in] LDH
 *> \verbatim
-*>          LDH is integer
+*>          LDH is INTEGER
 *>              The leading dimension of H as declared in
-*>              the calling procedure.  LDH.GE.N
+*>              the calling procedure.  LDH >= N
 *> \endverbatim
 *>
 *> \param[in] SR1
@@ -95,7 +95,7 @@
 *>
 *> \param[out] V
 *> \verbatim
-*>          V is DOUBLE PRECISION array of dimension N
+*>          V is DOUBLE PRECISION array, dimension (N)
 *>              A scalar multiple of the first column of the
 *>              matrix K in (*).
 *> \endverbatim
@@ -108,8 +108,6 @@
 *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.
 *
-*> \date December 2016
-*
 *> \ingroup doubleOTHERauxiliary
 *
 *> \par Contributors:
@@ -121,10 +119,9 @@
 *  =====================================================================
       SUBROUTINE DLAQR1( N, H, LDH, SR1, SI1, SR2, SI2, V )
 *
-*  -- LAPACK auxiliary routine (version 3.7.0) --
+*  -- LAPACK auxiliary routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     December 2016
 *
 *     .. Scalar Arguments ..
       DOUBLE PRECISION   SI1, SI2, SR1, SR2
@@ -147,6 +144,13 @@
       INTRINSIC          ABS
 *     ..
 *     .. Executable Statements ..
+*
+*     Quick return if possible
+*
+      IF( N.NE.2 .AND. N.NE.3 ) THEN
+         RETURN
+      END IF
+*
       IF( N.EQ.2 ) THEN
          S = ABS( H( 1, 1 )-SR2 ) + ABS( SI2 ) + ABS( H( 2, 1 ) )
          IF( S.EQ.ZERO ) THEN