LAPACK  3.5.0
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lapacke_chsein_work.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_chsein_work (int matrix_order, char job, char eigsrc, char initv, const lapack_logical *select, lapack_int n, const lapack_complex_float *h, lapack_int ldh, lapack_complex_float *w, lapack_complex_float *vl, lapack_int ldvl, lapack_complex_float *vr, lapack_int ldvr, lapack_int mm, lapack_int *m, lapack_complex_float *work, float *rwork, lapack_int *ifaill, lapack_int *ifailr)

Function/Subroutine Documentation

lapack_int LAPACKE_chsein_work ( int  matrix_order,
char  job,
char  eigsrc,
char  initv,
const lapack_logical select,
lapack_int  n,
const lapack_complex_float h,
lapack_int  ldh,
lapack_complex_float w,
lapack_complex_float vl,
lapack_int  ldvl,
lapack_complex_float vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int m,
lapack_complex_float work,
float *  rwork,
lapack_int ifaill,
lapack_int ifailr 
)

Definition at line 36 of file lapacke_chsein_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_chsein( &job, &eigsrc, &initv, select, &n, h, &ldh, w, vl, &ldvl,
vr, &ldvr, &mm, m, work, rwork, ifaill, ifailr, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldh_t = MAX(1,n);
lapack_int ldvl_t = MAX(1,n);
lapack_int ldvr_t = MAX(1,n);
lapack_complex_float* h_t = NULL;
lapack_complex_float* vl_t = NULL;
lapack_complex_float* vr_t = NULL;
/* Check leading dimension(s) */
if( ldh < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_chsein_work", info );
return info;
}
if( ldvl < mm ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_chsein_work", info );
return info;
}
if( ldvr < mm ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_chsein_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
LAPACKE_malloc( sizeof(lapack_complex_float) * ldh_t * MAX(1,n) );
if( h_t == NULL ) {
goto exit_level_0;
}
if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
ldvl_t * MAX(1,mm) );
if( vl_t == NULL ) {
goto exit_level_1;
}
}
if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
ldvr_t * MAX(1,mm) );
if( vr_t == NULL ) {
goto exit_level_2;
}
}
/* Transpose input matrices */
LAPACKE_cge_trans( matrix_order, n, n, h, ldh, h_t, ldh_t );
if( ( LAPACKE_lsame( job, 'l' ) || LAPACKE_lsame( job, 'b' ) ) &&
LAPACKE_lsame( initv, 'v' ) ) {
LAPACKE_cge_trans( matrix_order, n, mm, vl, ldvl, vl_t, ldvl_t );
}
if( ( LAPACKE_lsame( job, 'r' ) || LAPACKE_lsame( job, 'b' ) ) &&
LAPACKE_lsame( initv, 'v' ) ) {
LAPACKE_cge_trans( matrix_order, n, mm, vr, ldvr, vr_t, ldvr_t );
}
/* Call LAPACK function and adjust info */
LAPACK_chsein( &job, &eigsrc, &initv, select, &n, h_t, &ldh_t, w, vl_t,
&ldvl_t, vr_t, &ldvr_t, &mm, m, work, rwork, ifaill,
ifailr, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vl_t, ldvl_t, vl,
ldvl );
}
if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vr_t, ldvr_t, vr,
ldvr );
}
/* Release memory and exit */
if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
LAPACKE_free( vr_t );
}
exit_level_2:
if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
LAPACKE_free( vl_t );
}
exit_level_1:
LAPACKE_free( h_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_chsein_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_chsein_work", info );
}
return info;
}

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