--- rpl/lapack/lapack/dlarrf.f	2017/06/17 10:53:56	1.19
+++ rpl/lapack/lapack/dlarrf.f	2023/08/07 08:38:57	1.23
@@ -174,8 +174,6 @@
 *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.
 *
-*> \date June 2016
-*
 *> \ingroup OTHERauxiliary
 *
 *> \par Contributors:
@@ -193,10 +191,9 @@
      $                   SPDIAM, CLGAPL, CLGAPR, PIVMIN, SIGMA,
      $                   DPLUS, LPLUS, WORK, 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..--
-*     June 2016
 *
 *     .. Scalar Arguments ..
       INTEGER            CLSTRT, CLEND, INFO, N
@@ -239,6 +236,13 @@
 *     .. Executable Statements ..
 *
       INFO = 0
+*
+*     Quick return if possible
+*
+      IF( N.LE.0 ) THEN
+         RETURN
+      END IF
+*
       FACT = DBLE(2**KTRYMAX)
       EPS = DLAMCH( 'Precision' )
       SHIFT = 0