--- rpl/lapack/lapack/zungbr.f 2011/11/21 20:43:23 1.9
+++ rpl/lapack/lapack/zungbr.f 2023/08/07 08:39:43 1.19
@@ -2,24 +2,24 @@
*
* =========== 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 ZUNGBR + dependencies
-*>
-*> [TGZ]
-*>
-*> [ZIP]
-*>
+*> Download ZUNGBR + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
*> [TXT]
-*> \endhtmlonly
+*> \endhtmlonly
*
* Definition:
* ===========
*
* SUBROUTINE ZUNGBR( VECT, M, N, K, A, LDA, TAU, WORK, LWORK, INFO )
-*
+*
* .. Scalar Arguments ..
* CHARACTER VECT
* INTEGER INFO, K, LDA, LWORK, M, N
@@ -27,7 +27,7 @@
* .. Array Arguments ..
* COMPLEX*16 A( LDA, * ), TAU( * ), WORK( * )
* ..
-*
+*
*
*> \par Purpose:
* =============
@@ -145,22 +145,19 @@
* 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 complex16GBcomputational
*
* =====================================================================
SUBROUTINE ZUNGBR( VECT, M, N, K, A, LDA, TAU, WORK, LWORK, INFO )
*
-* -- LAPACK computational routine (version 3.4.0) --
+* -- LAPACK computational 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 ..
CHARACTER VECT
@@ -179,12 +176,11 @@
* ..
* .. Local Scalars ..
LOGICAL LQUERY, WANTQ
- INTEGER I, IINFO, J, LWKOPT, MN, NB
+ INTEGER I, IINFO, J, LWKOPT, MN
* ..
* .. External Functions ..
LOGICAL LSAME
- INTEGER ILAENV
- EXTERNAL LSAME, ILAENV
+ EXTERNAL LSAME
* ..
* .. External Subroutines ..
EXTERNAL XERBLA, ZUNGLQ, ZUNGQR
@@ -223,8 +219,8 @@
CALL ZUNGQR( M, N, K, A, LDA, TAU, WORK, -1, IINFO )
ELSE
IF( M.GT.1 ) THEN
- CALL ZUNGQR( M-1, M-1, M-1, A( 2, 2 ), LDA, TAU, WORK,
- $ -1, IINFO )
+ CALL ZUNGQR( M-1, M-1, M-1, A, LDA, TAU, WORK, -1,
+ $ IINFO )
END IF
END IF
ELSE
@@ -232,18 +228,20 @@
CALL ZUNGLQ( M, N, K, A, LDA, TAU, WORK, -1, IINFO )
ELSE
IF( N.GT.1 ) THEN
- CALL ZUNGLQ( N-1, N-1, N-1, A( 2, 2 ), LDA, TAU, WORK,
- $ -1, IINFO )
+ CALL ZUNGLQ( N-1, N-1, N-1, A, LDA, TAU, WORK, -1,
+ $ IINFO )
END IF
END IF
END IF
- LWKOPT = WORK( 1 )
+ LWKOPT = INT( DBLE( WORK( 1 ) ) )
+ LWKOPT = MAX (LWKOPT, MN)
END IF
*
IF( INFO.NE.0 ) THEN
CALL XERBLA( 'ZUNGBR', -INFO )
RETURN
ELSE IF( LQUERY ) THEN
+ WORK( 1 ) = LWKOPT
RETURN
END IF
*