--- rpl/lapack/lapack/dlanhs.f	2012/08/22 09:48:18	1.10
+++ rpl/lapack/lapack/dlanhs.f	2012/12/14 12:30:23	1.11
@@ -1,4 +1,4 @@
-*> \brief \b DLANHS
+*> \brief \b DLANHS returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of an upper Hessenberg matrix.
 *
 *  =========== DOCUMENTATION ===========
 *
@@ -101,17 +101,17 @@
 *> \author Univ. of Colorado Denver 
 *> \author NAG Ltd. 
 *
-*> \date November 2011
+*> \date September 2012
 *
 *> \ingroup doubleOTHERauxiliary
 *
 *  =====================================================================
       DOUBLE PRECISION FUNCTION DLANHS( NORM, N, A, LDA, WORK )
 *
-*  -- LAPACK auxiliary routine (version 3.4.0) --
+*  -- LAPACK auxiliary routine (version 3.4.2) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2011
+*     September 2012
 *
 *     .. Scalar Arguments ..
       CHARACTER          NORM
@@ -135,11 +135,11 @@
       EXTERNAL           DLASSQ
 *     ..
 *     .. External Functions ..
-      LOGICAL            LSAME
-      EXTERNAL           LSAME
+      LOGICAL            LSAME, DISNAN
+      EXTERNAL           LSAME, DISNAN
 *     ..
 *     .. Intrinsic Functions ..
-      INTRINSIC          ABS, MAX, MIN, SQRT
+      INTRINSIC          ABS, MIN, SQRT
 *     ..
 *     .. Executable Statements ..
 *
@@ -152,7 +152,8 @@
          VALUE = ZERO
          DO 20 J = 1, N
             DO 10 I = 1, MIN( N, J+1 )
-               VALUE = MAX( VALUE, ABS( A( I, J ) ) )
+               SUM = ABS( A( I, J ) )
+               IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    10       CONTINUE
    20    CONTINUE
       ELSE IF( ( LSAME( NORM, 'O' ) ) .OR. ( NORM.EQ.'1' ) ) THEN
@@ -165,7 +166,7 @@
             DO 30 I = 1, MIN( N, J+1 )
                SUM = SUM + ABS( A( I, J ) )
    30       CONTINUE
-            VALUE = MAX( VALUE, SUM )
+            IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    40    CONTINUE
       ELSE IF( LSAME( NORM, 'I' ) ) THEN
 *
@@ -181,7 +182,8 @@
    70    CONTINUE
          VALUE = ZERO
          DO 80 I = 1, N
-            VALUE = MAX( VALUE, WORK( I ) )
+            SUM = WORK( I )
+            IF( VALUE .LT. SUM .OR. DISNAN( SUM ) ) VALUE = SUM
    80    CONTINUE
       ELSE IF( ( LSAME( NORM, 'F' ) ) .OR. ( LSAME( NORM, 'E' ) ) ) THEN
 *