lapacke_cgees_work.c

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* Contents: Native middle-level C interface to LAPACK function cgees
* Author: Intel Corporation
*****************************************************************************/

#include"lapacke_utils.h"

lapack_intLAPACKE_cgees_work( intmatrix_layout, charjobvs, charsort,
LAPACK_C_SELECT1select, lapack_intn,
lapack_complex_float*a, lapack_intlda,
lapack_int*sdim, lapack_complex_float*w,
lapack_complex_float*vs, lapack_intldvs,
lapack_complex_float*work, lapack_intlwork,
float*rwork, lapack_logical*bwork )
{
lapack_intinfo=0;
if( matrix_layout==LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_cgees( &jobvs, &sort, select, &n, a, &lda, sdim, w, vs, &ldvs,
work, &lwork, rwork, bwork, &info );
if( info<0 ) {
info=info-1;
 }
 } elseif( matrix_layout==LAPACK_ROW_MAJOR ) {
lapack_intlda_t=MAX(1,n);
lapack_intldvs_t=MAX(1,n);
lapack_complex_float*a_t=NULL;
lapack_complex_float*vs_t=NULL;
/* Check leading dimension(s) */
if( lda<n ) {
info=-7;
LAPACKE_xerbla( "LAPACKE_cgees_work", info );
returninfo;
 }
if( ldvs<n ) {
info=-11;
LAPACKE_xerbla( "LAPACKE_cgees_work", info );
returninfo;
 }
/* Query optimal working array(s) size if requested */
if( lwork==-1 ) {
LAPACK_cgees( &jobvs, &sort, select, &n, a, &lda_t, sdim, w, vs,
&ldvs_t, work, &lwork, rwork, bwork, &info );
return (info<0) ? (info-1) : info;
 }
/* Allocate memory for temporary array(s) */
a_t= (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *lda_t*MAX(1,n) );
if( a_t==NULL ) {
info=LAPACK_TRANSPOSE_MEMORY_ERROR;
 goto exit_level_0;
 }
if( LAPACKE_lsame( jobvs, 'v' ) ) {
vs_t= (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldvs_t*MAX(1,n) );
if( vs_t==NULL ) {
info=LAPACK_TRANSPOSE_MEMORY_ERROR;
 goto exit_level_1;
 }
 }
/* Transpose input matrices */
LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
/* Call LAPACK function and adjust info */
LAPACK_cgees( &jobvs, &sort, select, &n, a_t, &lda_t, sdim, w, vs_t,
&ldvs_t, work, &lwork, rwork, bwork, &info );
if( info<0 ) {
info=info-1;
 }
/* Transpose output matrices */
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
if( LAPACKE_lsame( jobvs, 'v' ) ) {
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, vs_t, ldvs_t, vs, ldvs );
 }
/* Release memory and exit */
if( LAPACKE_lsame( jobvs, 'v' ) ) {
LAPACKE_free( vs_t );
 }
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
if( info==LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_cgees_work", info );
 }
 } else {
info=-1;
LAPACKE_xerbla( "LAPACKE_cgees_work", info );
 }
returninfo;
}