--- rpl/lapack/lapack/dlansf.f 2011/11/21 20:42:56 1.7
+++ rpl/lapack/lapack/dlansf.f 2017/06/17 10:53:54 1.15
@@ -1,25 +1,25 @@
-*> \brief \b DLANSF
+*> \brief \b DLANSF returns the value of the 1-norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a symmetric matrix in RFP format.
*
* =========== 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 DLANSF + dependencies
-*>
-*> [TGZ]
-*>
-*> [ZIP]
-*>
+*> Download DLANSF + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
*> [TXT]
-*> \endhtmlonly
+*> \endhtmlonly
*
* Definition:
* ===========
*
* DOUBLE PRECISION FUNCTION DLANSF( NORM, TRANSR, UPLO, N, A, WORK )
-*
+*
* .. Scalar Arguments ..
* CHARACTER NORM, TRANSR, UPLO
* INTEGER N
@@ -27,7 +27,7 @@
* .. Array Arguments ..
* DOUBLE PRECISION A( 0: * ), WORK( 0: * )
* ..
-*
+*
*
*> \par Purpose:
* =============
@@ -110,12 +110,12 @@
* 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 doubleOTHERcomputational
*
@@ -209,10 +209,10 @@
* =====================================================================
DOUBLE PRECISION FUNCTION DLANSF( NORM, TRANSR, UPLO, N, A, WORK )
*
-* -- LAPACK computational routine (version 3.4.0) --
+* -- LAPACK computational 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 NORM, TRANSR, UPLO
@@ -230,12 +230,11 @@
* ..
* .. Local Scalars ..
INTEGER I, J, IFM, ILU, NOE, N1, K, L, LDA
- DOUBLE PRECISION SCALE, S, VALUE, AA
+ DOUBLE PRECISION SCALE, S, VALUE, AA, TEMP
* ..
* .. External Functions ..
- LOGICAL LSAME
- INTEGER IDAMAX
- EXTERNAL LSAME, IDAMAX
+ LOGICAL LSAME, DISNAN
+ EXTERNAL LSAME, DISNAN
* ..
* .. External Subroutines ..
EXTERNAL DLASSQ
@@ -248,6 +247,9 @@
IF( N.EQ.0 ) THEN
DLANSF = ZERO
RETURN
+ ELSE IF( N.EQ.1 ) THEN
+ DLANSF = ABS( A(0) )
+ RETURN
END IF
*
* set noe = 1 if n is odd. if n is even set noe=0
@@ -296,14 +298,18 @@
* A is n by k
DO J = 0, K - 1
DO I = 0, N - 1
- VALUE = MAX( VALUE, ABS( A( I+J*LDA ) ) )
+ TEMP = ABS( A( I+J*LDA ) )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
END DO
END DO
ELSE
* xpose case; A is k by n
DO J = 0, N - 1
DO I = 0, K - 1
- VALUE = MAX( VALUE, ABS( A( I+J*LDA ) ) )
+ TEMP = ABS( A( I+J*LDA ) )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
END DO
END DO
END IF
@@ -313,14 +319,18 @@
* A is n+1 by k
DO J = 0, K - 1
DO I = 0, N
- VALUE = MAX( VALUE, ABS( A( I+J*LDA ) ) )
+ TEMP = ABS( A( I+J*LDA ) )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
END DO
END DO
ELSE
* xpose case; A is k by n+1
DO J = 0, N
DO I = 0, K - 1
- VALUE = MAX( VALUE, ABS( A( I+J*LDA ) ) )
+ TEMP = ABS( A( I+J*LDA ) )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
END DO
END DO
END IF
@@ -366,8 +376,12 @@
WORK( J ) = WORK( J ) + S
END DO
10 CONTINUE
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
ELSE
* ilu = 1
K = K + 1
@@ -404,8 +418,12 @@
END DO
WORK( J ) = WORK( J ) + S
END DO
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
END IF
ELSE
* n is even
@@ -438,8 +456,12 @@
END DO
WORK( J ) = WORK( J ) + S
END DO
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
ELSE
* ilu = 1
DO I = K, N - 1
@@ -472,8 +494,12 @@
END DO
WORK( J ) = WORK( J ) + S
END DO
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
END IF
END IF
ELSE
@@ -534,8 +560,12 @@
END DO
WORK( J ) = WORK( J ) + S
END DO
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
ELSE
* ilu=1
K = K + 1
@@ -595,8 +625,12 @@
END DO
WORK( J ) = WORK( J ) + S
END DO
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
END IF
ELSE
* n is even
@@ -664,8 +698,12 @@
* A(k-1,k-1)
S = S + AA
WORK( I ) = WORK( I ) + S
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
ELSE
* ilu=1
DO I = K, N - 1
@@ -733,8 +771,12 @@
END DO
WORK( J-1 ) = WORK( J-1 ) + S
END DO
- I = IDAMAX( N, WORK, 1 )
- VALUE = WORK( I-1 )
+ VALUE = WORK( 0 )
+ DO I = 1, N-1
+ TEMP = WORK( I )
+ IF( VALUE .LT. TEMP .OR. DISNAN( TEMP ) )
+ $ VALUE = TEMP
+ END DO
END IF
END IF
END IF