LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztrsen()

lapack_int LAPACKE_ztrsen ( int  matrix_layout,
char  job,
char  compq,
const lapack_logical select,
lapack_int  n,
lapack_complex_double t,
lapack_int  ldt,
lapack_complex_double q,
lapack_int  ldq,
lapack_complex_double w,
lapack_int m,
double *  s,
double *  sep 
)

Definition at line 36 of file lapacke_ztrsen.c.

42 {
43  lapack_int info = 0;
44  lapack_int lwork = -1;
45  lapack_complex_double* work = NULL;
46  lapack_complex_double work_query;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_ztrsen", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_lsame( compq, 'v' ) ) {
55  if( LAPACKE_zge_nancheck( matrix_layout, n, n, q, ldq ) ) {
56  return -8;
57  }
58  }
59  if( LAPACKE_zge_nancheck( matrix_layout, n, n, t, ldt ) ) {
60  return -6;
61  }
62  }
63 #endif
64  /* Query optimal working array(s) size */
65  info = LAPACKE_ztrsen_work( matrix_layout, job, compq, select, n, t, ldt, q,
66  ldq, w, m, s, sep, &work_query, lwork );
67  if( info != 0 ) {
68  goto exit_level_0;
69  }
70  lwork = LAPACK_Z2INT( work_query );
71  /* Allocate memory for work arrays */
72  work = (lapack_complex_double*)
73  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
74  if( work == NULL ) {
76  goto exit_level_0;
77  }
78  /* Call middle-level interface */
79  info = LAPACKE_ztrsen_work( matrix_layout, job, compq, select, n, t, ldt, q,
80  ldq, w, m, s, sep, work, lwork );
81  /* Release memory and exit */
82  LAPACKE_free( work );
83 exit_level_0:
84  if( info == LAPACK_WORK_MEMORY_ERROR ) {
85  LAPACKE_xerbla( "LAPACKE_ztrsen", info );
86  }
87  return info;
88 }
#define LAPACK_Z2INT(x)
Definition: lapacke.h:117
lapack_int LAPACKE_ztrsen_work(int matrix_layout, char job, char compq, const lapack_logical *select, lapack_int n, lapack_complex_double *t, lapack_int ldt, lapack_complex_double *q, lapack_int ldq, lapack_complex_double *w, lapack_int *m, double *s, double *sep, lapack_complex_double *work, lapack_int lwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_double
Definition: lapacke.h:90
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
int LAPACKE_get_nancheck()
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