--- rpl/lapack/lapack/dlantb.f	2012/08/22 09:48:18	1.10
+++ rpl/lapack/lapack/dlantb.f	2017/06/17 11:06:23	1.16
@@ -1,26 +1,26 @@
-*> \brief \b DLANTB
+*> \brief \b DLANTB returns the value of the 1-norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a triangular band matrix.
 *
 *  =========== 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 DLANTB + dependencies 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlantb.f"> 
-*> [TGZ]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlantb.f"> 
-*> [ZIP]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlantb.f"> 
+*> Download DLANTB + dependencies
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlantb.f">
+*> [TGZ]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlantb.f">
+*> [ZIP]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlantb.f">
 *> [TXT]</a>
-*> \endhtmlonly 
+*> \endhtmlonly
 *
 *  Definition:
 *  ===========
 *
 *       DOUBLE PRECISION FUNCTION DLANTB( NORM, UPLO, DIAG, N, K, AB,
 *                        LDAB, WORK )
-* 
+*
 *       .. Scalar Arguments ..
 *       CHARACTER          DIAG, NORM, UPLO
 *       INTEGER            K, LDAB, N
@@ -28,7 +28,7 @@
 *       .. Array Arguments ..
 *       DOUBLE PRECISION   AB( LDAB, * ), WORK( * )
 *       ..
-*  
+*
 *
 *> \par Purpose:
 *  =============
@@ -127,12 +127,12 @@
 *  Authors:
 *  ========
 *
-*> \author Univ. of Tennessee 
-*> \author Univ. of California Berkeley 
-*> \author Univ. of Colorado Denver 
-*> \author NAG Ltd. 
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
 *
-*> \date November 2011
+*> \date December 2016
 *
 *> \ingroup doubleOTHERauxiliary
 *
@@ -140,10 +140,10 @@
       DOUBLE PRECISION FUNCTION DLANTB( NORM, UPLO, DIAG, N, K, AB,
      $                 LDAB, WORK )
 *
-*  -- LAPACK auxiliary routine (version 3.4.0) --
+*  -- LAPACK auxiliary routine (version 3.7.0) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2011
+*     December 2016
 *
 *     .. Scalar Arguments ..
       CHARACTER          DIAG, NORM, UPLO
@@ -168,8 +168,8 @@
       EXTERNAL           DLASSQ
 *     ..
 *     .. External Functions ..
-      LOGICAL            LSAME
-      EXTERNAL           LSAME
+      LOGICAL            LSAME, DISNAN
+      EXTERNAL           LSAME, DISNAN
 *     ..
 *     .. Intrinsic Functions ..
       INTRINSIC          ABS, MAX, MIN, SQRT
@@ -187,13 +187,15 @@
             IF( LSAME( UPLO, 'U' ) ) THEN
                DO 20 J = 1, N
                   DO 10 I = MAX( K+2-J, 1 ), K
-                     VALUE = MAX( VALUE, ABS( AB( I, J ) ) )
+                     SUM = ABS( AB( I, J ) )
+                     IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    10             CONTINUE
    20          CONTINUE
             ELSE
                DO 40 J = 1, N
                   DO 30 I = 2, MIN( N+1-J, K+1 )
-                     VALUE = MAX( VALUE, ABS( AB( I, J ) ) )
+                     SUM = ABS( AB( I, J ) )
+                     IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    30             CONTINUE
    40          CONTINUE
             END IF
@@ -202,13 +204,15 @@
             IF( LSAME( UPLO, 'U' ) ) THEN
                DO 60 J = 1, N
                   DO 50 I = MAX( K+2-J, 1 ), K + 1
-                     VALUE = MAX( VALUE, ABS( AB( I, J ) ) )
+                     SUM = ABS( AB( I, J ) )
+                     IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    50             CONTINUE
    60          CONTINUE
             ELSE
                DO 80 J = 1, N
                   DO 70 I = 1, MIN( N+1-J, K+1 )
-                     VALUE = MAX( VALUE, ABS( AB( I, J ) ) )
+                     SUM = ABS( AB( I, J ) )
+                     IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    70             CONTINUE
    80          CONTINUE
             END IF
@@ -232,7 +236,7 @@
                      SUM = SUM + ABS( AB( I, J ) )
   100             CONTINUE
                END IF
-               VALUE = MAX( VALUE, SUM )
+               IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
   110       CONTINUE
          ELSE
             DO 140 J = 1, N
@@ -247,7 +251,7 @@
                      SUM = SUM + ABS( AB( I, J ) )
   130             CONTINUE
                END IF
-               VALUE = MAX( VALUE, SUM )
+               IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
   140       CONTINUE
          END IF
       ELSE IF( LSAME( NORM, 'I' ) ) THEN
@@ -301,7 +305,8 @@
             END IF
          END IF
          DO 270 I = 1, N
-            VALUE = MAX( VALUE, WORK( I ) )
+            SUM = WORK( I )
+            IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
   270    CONTINUE
       ELSE IF( ( LSAME( NORM, 'F' ) ) .OR. ( LSAME( NORM, 'E' ) ) ) THEN
 *