Return to clag2z.f CVS log

Up to [local] / rpl / lapack / lapack

Annotation of rpl/lapack/lapack/clag2z.f, revision 1.15

1.12      bertrand    1: *> \brief \b CLAG2Z converts a complex single precision matrix to a complex double precision matrix.
1.9       bertrand    2: *
                      3: *  =========== DOCUMENTATION ===========
                      4: *
                      5: * Online html documentation available at 
                      6: *            http://www.netlib.org/lapack/explore-html/ 
                      7: *
                      8: *> \htmlonly
                      9: *> Download CLAG2Z + dependencies 
                     10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/clag2z.f"> 
                     11: *> [TGZ]</a> 
                     12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/clag2z.f"> 
                     13: *> [ZIP]</a> 
                     14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/clag2z.f"> 
                     15: *> [TXT]</a>
                     16: *> \endhtmlonly 
                     17: *
                     18: *  Definition:
                     19: *  ===========
                     20: *
                     21: *       SUBROUTINE CLAG2Z( M, N, SA, LDSA, A, LDA, INFO )
                     22: * 
                     23: *       .. Scalar Arguments ..
                     24: *       INTEGER            INFO, LDA, LDSA, M, N
                     25: *       ..
                     26: *       .. Array Arguments ..
                     27: *       COMPLEX            SA( LDSA, * )
                     28: *       COMPLEX*16         A( LDA, * )
                     29: *       ..
                     30: *  
                     31: *
                     32: *> \par Purpose:
                     33: *  =============
                     34: *>
                     35: *> \verbatim
                     36: *>
                     37: *> CLAG2Z converts a COMPLEX matrix, SA, to a COMPLEX*16 matrix, A.
                     38: *>
                     39: *> Note that while it is possible to overflow while converting
                     40: *> from double to single, it is not possible to overflow when
                     41: *> converting from single to double.
                     42: *>
                     43: *> This is an auxiliary routine so there is no argument checking.
                     44: *> \endverbatim
                     45: *
                     46: *  Arguments:
                     47: *  ==========
                     48: *
                     49: *> \param[in] M
                     50: *> \verbatim
                     51: *>          M is INTEGER
                     52: *>          The number of lines of the matrix A.  M >= 0.
                     53: *> \endverbatim
                     54: *>
                     55: *> \param[in] N
                     56: *> \verbatim
                     57: *>          N is INTEGER
                     58: *>          The number of columns of the matrix A.  N >= 0.
                     59: *> \endverbatim
                     60: *>
                     61: *> \param[in] SA
                     62: *> \verbatim
                     63: *>          SA is COMPLEX array, dimension (LDSA,N)
                     64: *>          On entry, the M-by-N coefficient matrix SA.
                     65: *> \endverbatim
                     66: *>
                     67: *> \param[in] LDSA
                     68: *> \verbatim
                     69: *>          LDSA is INTEGER
                     70: *>          The leading dimension of the array SA.  LDSA >= max(1,M).
                     71: *> \endverbatim
                     72: *>
                     73: *> \param[out] A
                     74: *> \verbatim
                     75: *>          A is COMPLEX*16 array, dimension (LDA,N)
                     76: *>          On exit, the M-by-N coefficient matrix A.
                     77: *> \endverbatim
                     78: *>
                     79: *> \param[in] LDA
                     80: *> \verbatim
                     81: *>          LDA is INTEGER
                     82: *>          The leading dimension of the array A.  LDA >= max(1,M).
                     83: *> \endverbatim
                     84: *>
                     85: *> \param[out] INFO
                     86: *> \verbatim
                     87: *>          INFO is INTEGER
                     88: *>          = 0:  successful exit
                     89: *> \endverbatim
                     90: *
                     91: *  Authors:
                     92: *  ========
                     93: *
                     94: *> \author Univ. of Tennessee 
                     95: *> \author Univ. of California Berkeley 
                     96: *> \author Univ. of Colorado Denver 
                     97: *> \author NAG Ltd. 
                     98: *
1.12      bertrand   99: *> \date September 2012
1.9       bertrand  100: *
                    101: *> \ingroup complex16OTHERauxiliary
                    102: *
                    103: *  =====================================================================
1.1       bertrand  104:       SUBROUTINE CLAG2Z( M, N, SA, LDSA, A, LDA, INFO )
                    105: *
1.12      bertrand  106: *  -- LAPACK auxiliary routine (version 3.4.2) --
1.1       bertrand  107: *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
                    108: *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
1.12      bertrand  109: *     September 2012
1.1       bertrand  110: *
                    111: *     .. Scalar Arguments ..
                    112:       INTEGER            INFO, LDA, LDSA, M, N
                    113: *     ..
                    114: *     .. Array Arguments ..
                    115:       COMPLEX            SA( LDSA, * )
                    116:       COMPLEX*16         A( LDA, * )
                    117: *     ..
                    118: *
1.8       bertrand  119: *  =====================================================================
1.1       bertrand  120: *
                    121: *     .. Local Scalars ..
                    122:       INTEGER            I, J
                    123: *     ..
                    124: *     .. Executable Statements ..
                    125: *
                    126:       INFO = 0
                    127:       DO 20 J = 1, N
                    128:          DO 10 I = 1, M
                    129:             A( I, J ) = SA( I, J )
                    130:    10    CONTINUE
                    131:    20 CONTINUE
                    132:       RETURN
                    133: *
                    134: *     End of CLAG2Z
                    135: *
                    136:       END