--- rpl/lapack/lapack/dlarrd.f	2012/12/14 14:22:34	1.13
+++ rpl/lapack/lapack/dlarrd.f	2018/05/29 06:55:19	1.19
@@ -2,18 +2,18 @@
 *
 *  =========== 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 DLARRD + dependencies 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlarrd.f"> 
-*> [TGZ]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlarrd.f"> 
-*> [ZIP]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlarrd.f"> 
+*> Download DLARRD + dependencies
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlarrd.f">
+*> [TGZ]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlarrd.f">
+*> [ZIP]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlarrd.f">
 *> [TXT]</a>
-*> \endhtmlonly 
+*> \endhtmlonly
 *
 *  Definition:
 *  ===========
@@ -22,7 +22,7 @@
 *                           RELTOL, D, E, E2, PIVMIN, NSPLIT, ISPLIT,
 *                           M, W, WERR, WL, WU, IBLOCK, INDEXW,
 *                           WORK, IWORK, INFO )
-* 
+*
 *       .. Scalar Arguments ..
 *       CHARACTER          ORDER, RANGE
 *       INTEGER            IL, INFO, IU, M, N, NSPLIT
@@ -34,7 +34,7 @@
 *       DOUBLE PRECISION   D( * ), E( * ), E2( * ),
 *      $                   GERS( * ), W( * ), WERR( * ), WORK( * )
 *       ..
-*  
+*
 *
 *> \par Purpose:
 *  =============
@@ -92,12 +92,16 @@
 *> \param[in] VL
 *> \verbatim
 *>          VL is DOUBLE PRECISION
+*>          If RANGE='V', the lower bound of the interval to
+*>          be searched for eigenvalues.  Eigenvalues less than or equal
+*>          to VL, or greater than VU, will not be returned.  VL < VU.
+*>          Not referenced if RANGE = 'A' or 'I'.
 *> \endverbatim
 *>
 *> \param[in] VU
 *> \verbatim
 *>          VU is DOUBLE PRECISION
-*>          If RANGE='V', the lower and upper bounds of the interval to
+*>          If RANGE='V', the upper bound of the interval to
 *>          be searched for eigenvalues.  Eigenvalues less than or equal
 *>          to VL, or greater than VU, will not be returned.  VL < VU.
 *>          Not referenced if RANGE = 'A' or 'I'.
@@ -106,13 +110,17 @@
 *> \param[in] IL
 *> \verbatim
 *>          IL is INTEGER
+*>          If RANGE='I', the index of the
+*>          smallest eigenvalue to be returned.
+*>          1 <= IL <= IU <= N, if N > 0; IL = 1 and IU = 0 if N = 0.
+*>          Not referenced if RANGE = 'A' or 'V'.
 *> \endverbatim
 *>
 *> \param[in] IU
 *> \verbatim
 *>          IU is INTEGER
-*>          If RANGE='I', the indices (in ascending order) of the
-*>          smallest and largest eigenvalues to be returned.
+*>          If RANGE='I', the index of the
+*>          largest eigenvalue to be returned.
 *>          1 <= IL <= IU <= N, if N > 0; IL = 1 and IU = 0 if N = 0.
 *>          Not referenced if RANGE = 'A' or 'V'.
 *> \endverbatim
@@ -306,14 +314,14 @@
 *  Authors:
 *  ========
 *
-*> \author Univ. of Tennessee 
-*> \author Univ. of California Berkeley 
-*> \author Univ. of Colorado Denver 
-*> \author NAG Ltd. 
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
 *
-*> \date September 2012
+*> \date June 2016
 *
-*> \ingroup auxOTHERauxiliary
+*> \ingroup OTHERauxiliary
 *
 *  =====================================================================
       SUBROUTINE DLARRD( RANGE, ORDER, N, VL, VU, IL, IU, GERS,
@@ -321,10 +329,10 @@
      $                    M, W, WERR, WL, WU, IBLOCK, INDEXW,
      $                    WORK, IWORK, INFO )
 *
-*  -- LAPACK auxiliary routine (version 3.4.2) --
+*  -- LAPACK auxiliary routine (version 3.7.1) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     September 2012
+*     June 2016
 *
 *     .. Scalar Arguments ..
       CHARACTER          ORDER, RANGE
@@ -377,6 +385,12 @@
 *
       INFO = 0
 *
+*     Quick return if possible
+*
+      IF( N.LE.0 ) THEN
+         RETURN
+      END IF
+*
 *     Decode RANGE
 *
       IF( LSAME( RANGE, 'A' ) ) THEN