--- rpl/lapack/lapack/dlarrj.f 2014/01/27 09:28:22 1.14
+++ rpl/lapack/lapack/dlarrj.f 2023/08/07 08:38:57 1.21
@@ -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 DLARRJ + dependencies
-*>
-*> [TGZ]
-*>
-*> [ZIP]
-*>
+*> Download DLARRJ + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
*> [TXT]
-*> \endhtmlonly
+*> \endhtmlonly
*
* Definition:
* ===========
@@ -21,7 +21,7 @@
* SUBROUTINE DLARRJ( N, D, E2, IFIRST, ILAST,
* RTOL, OFFSET, W, WERR, WORK, IWORK,
* PIVMIN, SPDIAM, INFO )
-*
+*
* .. Scalar Arguments ..
* INTEGER IFIRST, ILAST, INFO, N, OFFSET
* DOUBLE PRECISION PIVMIN, RTOL, SPDIAM
@@ -31,7 +31,7 @@
* DOUBLE PRECISION D( * ), E2( * ), W( * ),
* $ WERR( * ), WORK( * )
* ..
-*
+*
*
*> \par Purpose:
* =============
@@ -85,7 +85,7 @@
*> RTOL is DOUBLE PRECISION
*> Tolerance for the convergence of the bisection intervals.
*> An interval [LEFT,RIGHT] has converged if
-*> RIGHT-LEFT.LT.RTOL*MAX(|LEFT|,|RIGHT|).
+*> RIGHT-LEFT < RTOL*MAX(|LEFT|,|RIGHT|).
*> \endverbatim
*>
*> \param[in] OFFSET
@@ -145,14 +145,12 @@
* 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:
* ==================
@@ -168,10 +166,9 @@
$ RTOL, OFFSET, W, WERR, WORK, IWORK,
$ PIVMIN, SPDIAM, 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 IFIRST, ILAST, INFO, N, OFFSET
@@ -204,6 +201,12 @@
*
INFO = 0
*
+* Quick return if possible
+*
+ IF( N.LE.0 ) THEN
+ RETURN
+ END IF
+*
MAXITR = INT( ( LOG( SPDIAM+PIVMIN )-LOG( PIVMIN ) ) /
$ LOG( TWO ) ) + 2
*