version 1.11, 2012/12/14 12:30:29
|
version 1.16, 2016/08/27 15:34:47
|
Line 98
|
Line 98
|
*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date September 2012 |
*> \date June 2016 |
* |
* |
*> \ingroup complex16GEauxiliary |
*> \ingroup complex16GEauxiliary |
* |
* |
Line 111
|
Line 111
|
* ===================================================================== |
* ===================================================================== |
SUBROUTINE ZGETC2( N, A, LDA, IPIV, JPIV, INFO ) |
SUBROUTINE ZGETC2( N, A, LDA, IPIV, JPIV, INFO ) |
* |
* |
* -- LAPACK auxiliary routine (version 3.4.2) -- |
* -- LAPACK auxiliary routine (version 3.6.1) -- |
* -- LAPACK is a software package provided by Univ. of Tennessee, -- |
* -- LAPACK is a software package provided by Univ. of Tennessee, -- |
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
* September 2012 |
* June 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
INTEGER INFO, LDA, N |
INTEGER INFO, LDA, N |
Line 146
|
Line 146
|
* .. |
* .. |
* .. Executable Statements .. |
* .. Executable Statements .. |
* |
* |
|
INFO = 0 |
|
* |
|
* Quick return if possible |
|
* |
|
IF( N.EQ.0 ) |
|
$ RETURN |
|
* |
* Set constants to control overflow |
* Set constants to control overflow |
* |
* |
INFO = 0 |
|
EPS = DLAMCH( 'P' ) |
EPS = DLAMCH( 'P' ) |
SMLNUM = DLAMCH( 'S' ) / EPS |
SMLNUM = DLAMCH( 'S' ) / EPS |
BIGNUM = ONE / SMLNUM |
BIGNUM = ONE / SMLNUM |
CALL DLABAD( SMLNUM, BIGNUM ) |
CALL DLABAD( SMLNUM, BIGNUM ) |
* |
* |
|
* Handle the case N=1 by itself |
|
* |
|
IF( N.EQ.1 ) THEN |
|
IPIV( 1 ) = 1 |
|
JPIV( 1 ) = 1 |
|
IF( ABS( A( 1, 1 ) ).LT.SMLNUM ) THEN |
|
INFO = 1 |
|
A( 1, 1 ) = DCMPLX( SMLNUM, ZERO ) |
|
END IF |
|
RETURN |
|
END IF |
|
* |
* Factorize A using complete pivoting. |
* Factorize A using complete pivoting. |
* Set pivots less than SMIN to SMIN |
* Set pivots less than SMIN to SMIN |
* |
* |
Line 203
|
Line 221
|
INFO = N |
INFO = N |
A( N, N ) = DCMPLX( SMIN, ZERO ) |
A( N, N ) = DCMPLX( SMIN, ZERO ) |
END IF |
END IF |
|
* |
|
* Set last pivots to N |
|
* |
|
IPIV( N ) = N |
|
JPIV( N ) = N |
|
* |
RETURN |
RETURN |
* |
* |
* End of ZGETC2 |
* End of ZGETC2 |