--- rpl/lapack/lapack/dlamtsqr.f	2020/05/21 21:45:59	1.5
+++ rpl/lapack/lapack/dlamtsqr.f	2023/08/07 08:38:54	1.6
@@ -56,15 +56,14 @@
 *> \param[in] N
 *> \verbatim
 *>          N is INTEGER
-*>          The number of columns of the matrix C. M >= N >= 0.
+*>          The number of columns of the matrix C. N >= 0.
 *> \endverbatim
 *>
 *> \param[in] K
 *> \verbatim
 *>          K is INTEGER
 *>          The number of elementary reflectors whose product defines
-*>          the matrix Q.
-*>          N >= K >= 0;
+*>          the matrix Q. M >= K >= 0;
 *>
 *> \endverbatim
 *>
@@ -196,10 +195,9 @@
       SUBROUTINE DLAMTSQR( SIDE, TRANS, M, N, K, MB, NB, A, LDA, T,
      $        LDT, C, LDC, WORK, LWORK, INFO )
 *
-*  -- LAPACK computational routine (version 3.7.1) --
+*  -- LAPACK computational routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     June 2017
 *
 *     .. Scalar Arguments ..
       CHARACTER         SIDE, TRANS
@@ -215,7 +213,7 @@
 *     ..
 *     .. Local Scalars ..
       LOGICAL    LEFT, RIGHT, TRAN, NOTRAN, LQUERY
-      INTEGER    I, II, KK, LW, CTR
+      INTEGER    I, II, KK, LW, CTR, Q
 *     ..
 *     .. External Functions ..
       LOGICAL            LSAME
@@ -234,8 +232,10 @@
       RIGHT   = LSAME( SIDE, 'R' )
       IF (LEFT) THEN
         LW = N * NB
+        Q = M
       ELSE
         LW = MB * NB
+        Q = N
       END IF
 *
       INFO = 0
@@ -243,13 +243,15 @@
          INFO = -1
       ELSE IF( .NOT.TRAN .AND. .NOT.NOTRAN ) THEN
          INFO = -2
-      ELSE IF( M.LT.0 ) THEN
+      ELSE IF( M.LT.K ) THEN
         INFO = -3
       ELSE IF( N.LT.0 ) THEN
         INFO = -4
       ELSE IF( K.LT.0 ) THEN
         INFO = -5
-      ELSE IF( LDA.LT.MAX( 1, K ) ) THEN
+      ELSE IF( K.LT.NB .OR. NB.LT.1 ) THEN
+        INFO = -7
+      ELSE IF( LDA.LT.MAX( 1, Q ) ) THEN
         INFO = -9
       ELSE IF( LDT.LT.MAX( 1, NB) ) THEN
         INFO = -11