--- rpl/lapack/lapack/dlarrr.f	2017/06/17 11:06:25	1.16
+++ rpl/lapack/lapack/dlarrr.f	2023/08/07 08:38:57	1.19
@@ -78,8 +78,6 @@
 *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.
 *
-*> \date December 2016
-*
 *> \ingroup OTHERauxiliary
 *
 *> \par Contributors:
@@ -94,10 +92,9 @@
 *  =====================================================================
       SUBROUTINE DLARRR( N, D, E, INFO )
 *
-*  -- 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 ..
       INTEGER            N, INFO
@@ -130,6 +127,13 @@
 *     ..
 *     .. Executable Statements ..
 *
+*     Quick return if possible
+*
+      IF( N.LE.0 ) THEN
+         INFO = 0
+         RETURN
+      END IF
+*
 *     As a default, do NOT go for relative-accuracy preserving computations.
       INFO = 1
 
@@ -199,6 +203,6 @@
 *
       RETURN
 *
-*     END OF DLARRR
+*     End of DLARRR
 *
       END