--- rpl/lapack/lapack/iladlr.f	2011/11/21 20:43:07	1.10
+++ rpl/lapack/lapack/iladlr.f	2023/08/07 08:39:14	1.21
@@ -1,32 +1,32 @@
-*> \brief \b ILADLR
+*> \brief \b ILADLR scans a matrix for its last non-zero row.
 *
 *  =========== 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 ILADLR + dependencies 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/iladlr.f"> 
-*> [TGZ]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/iladlr.f"> 
-*> [ZIP]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/iladlr.f"> 
+*> Download ILADLR + dependencies
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/iladlr.f">
+*> [TGZ]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/iladlr.f">
+*> [ZIP]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/iladlr.f">
 *> [TXT]</a>
-*> \endhtmlonly 
+*> \endhtmlonly
 *
 *  Definition:
 *  ===========
 *
 *       INTEGER FUNCTION ILADLR( M, N, A, LDA )
-* 
+*
 *       .. Scalar Arguments ..
 *       INTEGER            M, N, LDA
 *       ..
 *       .. Array Arguments ..
 *       DOUBLE PRECISION   A( LDA, * )
 *       ..
-*  
+*
 *
 *> \par Purpose:
 *  =============
@@ -66,22 +66,19 @@
 *  Authors:
 *  ========
 *
-*> \author Univ. of Tennessee 
-*> \author Univ. of California Berkeley 
-*> \author Univ. of Colorado Denver 
-*> \author NAG Ltd. 
-*
-*> \date November 2011
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
 *
-*> \ingroup auxOTHERauxiliary
+*> \ingroup OTHERauxiliary
 *
 *  =====================================================================
       INTEGER FUNCTION ILADLR( M, N, A, LDA )
 *
-*  -- LAPACK auxiliary routine (version 3.4.0) --
+*  -- LAPACK auxiliary routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2011
 *
 *     .. Scalar Arguments ..
       INTEGER            M, N, LDA
@@ -111,11 +108,8 @@
          ILADLR = 0
          DO J = 1, N
             I=M
-            DO WHILE ((A(I,J).NE.ZERO).AND.(I.GE.1))
-              I=I-1
-              IF (I.EQ.0) THEN
-                 EXIT
-              END IF
+            DO WHILE((A(MAX(I,1),J).EQ.ZERO).AND.(I.GE.1))
+               I=I-1
             ENDDO
             ILADLR = MAX( ILADLR, I )
          END DO