--- rpl/lapack/lapack/dlarrr.f 2012/12/14 12:30:25 1.11
+++ rpl/lapack/lapack/dlarrr.f 2023/08/07 08:38:57 1.19
@@ -2,32 +2,32 @@
*
* =========== DOCUMENTATION ===========
*
-* Online html documentation available at
-* http://www.netlib.org/lapack/explore-html/
+* Online html documentation available at
+* http://www.netlib.org/lapack/explore-html/
*
*> \htmlonly
-*> Download DLARRR + dependencies
-*>
-*> [TGZ]
-*>
-*> [ZIP]
-*>
+*> Download DLARRR + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
*> [TXT]
-*> \endhtmlonly
+*> \endhtmlonly
*
* Definition:
* ===========
*
* SUBROUTINE DLARRR( N, D, E, INFO )
-*
+*
* .. Scalar Arguments ..
* INTEGER N, INFO
* ..
* .. Array Arguments ..
* DOUBLE PRECISION D( * ), E( * )
* ..
-*
-*
+*
+*
*
*> \par Purpose:
* =============
@@ -73,14 +73,12 @@
* Authors:
* ========
*
-*> \author Univ. of Tennessee
-*> \author Univ. of California Berkeley
-*> \author Univ. of Colorado Denver
-*> \author NAG Ltd.
-*
-*> \date September 2012
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
*
-*> \ingroup auxOTHERauxiliary
+*> \ingroup OTHERauxiliary
*
*> \par Contributors:
* ==================
@@ -94,10 +92,9 @@
* =====================================================================
SUBROUTINE DLARRR( N, D, E, INFO )
*
-* -- LAPACK auxiliary routine (version 3.4.2) --
+* -- LAPACK auxiliary routine --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-* September 2012
*
* .. 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