--- rpl/lapack/lapack/dlasd6.f	2011/11/21 20:42:58	1.11
+++ rpl/lapack/lapack/dlasd6.f	2016/08/27 15:34:31	1.19
@@ -1,4 +1,4 @@
-*> \brief \b DLASD6
+*> \brief \b DLASD6 computes the SVD of an updated upper bidiagonal matrix obtained by merging two smaller ones by appending a row. Used by sbdsdc.
 *
 *  =========== DOCUMENTATION ===========
 *
@@ -74,7 +74,7 @@
 *>
 *>       The first stage consists of deflating the size of the problem
 *>       when there are multiple singular values or if there is a zero
-*>       in the Z vector. For each such occurence the dimension of the
+*>       in the Z vector. For each such occurrence the dimension of the
 *>       secular equation problem is reduced by one. This stage is
 *>       performed by the routine DLASD7.
 *>
@@ -164,7 +164,7 @@
 *>         row.
 *> \endverbatim
 *>
-*> \param[out] IDXQ
+*> \param[in,out] IDXQ
 *> \verbatim
 *>          IDXQ is INTEGER array, dimension ( N )
 *>         This contains the permutation which will reintegrate the
@@ -232,14 +232,13 @@
 *> \param[out] DIFR
 *> \verbatim
 *>          DIFR is DOUBLE PRECISION array,
-*>                  dimension ( LDGNUM, 2 ) if ICOMPQ = 1 and
-*>                  dimension ( N ) if ICOMPQ = 0.
-*>         On exit, DIFR(I, 1) is the distance between I-th updated
-*>         (undeflated) singular value and the I+1-th (undeflated) old
-*>         singular value.
+*>                   dimension ( LDDIFR, 2 ) if ICOMPQ = 1 and
+*>                   dimension ( K ) if ICOMPQ = 0.
+*>          On exit, DIFR(I,1) = D(I) - DSIGMA(I+1), DIFR(K,1) is not
+*>          defined and will not be referenced.
 *>
-*>         If ICOMPQ = 1, DIFR(1:K,2) is an array containing the
-*>         normalizing factors for the right singular vector matrix.
+*>          If ICOMPQ = 1, DIFR(1:K,2) is an array containing the
+*>          normalizing factors for the right singular vector matrix.
 *>
 *>         See DLASD8 for details on DIFL and DIFR.
 *> \endverbatim
@@ -298,7 +297,7 @@
 *> \author Univ. of Colorado Denver 
 *> \author NAG Ltd. 
 *
-*> \date November 2011
+*> \date June 2016
 *
 *> \ingroup auxOTHERauxiliary
 *
@@ -314,10 +313,10 @@
      $                   LDGNUM, POLES, DIFL, DIFR, Z, K, C, S, WORK,
      $                   IWORK, INFO )
 *
-*  -- LAPACK auxiliary routine (version 3.4.0) --
+*  -- LAPACK auxiliary routine (version 3.6.1) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2011
+*     June 2016
 *
 *     .. Scalar Arguments ..
       INTEGER            GIVPTR, ICOMPQ, INFO, K, LDGCOL, LDGNUM, NL,
@@ -414,10 +413,9 @@
       CALL DLASD8( ICOMPQ, K, D, Z, VF, VL, DIFL, DIFR, LDGNUM,
      $             WORK( ISIGMA ), WORK( IW ), INFO )
 *
-*     Handle error returned
+*     Report the possible convergence failure.
 *
       IF( INFO.NE.0 ) THEN
-         CALL XERBLA( 'DLASD8', -INFO )
          RETURN
       END IF
 *