LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_strsna()

lapack_int LAPACKE_strsna ( int  matrix_layout,
char  job,
char  howmny,
const lapack_logical select,
lapack_int  n,
const float *  t,
lapack_int  ldt,
const float *  vl,
lapack_int  ldvl,
const float *  vr,
lapack_int  ldvr,
float *  s,
float *  sep,
lapack_int  mm,
lapack_int m 
)

Definition at line 36 of file lapacke_strsna.c.

41 {
42  lapack_int info = 0;
43  lapack_int ldwork = LAPACKE_lsame( job, 'e' ) ? 1 : MAX(1,n) ;
44  lapack_int* iwork = NULL;
45  float* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_strsna", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  /* Optionally check input matrices for NaNs */
52  if( LAPACKE_sge_nancheck( matrix_layout, n, n, t, ldt ) ) {
53  return -6;
54  }
55  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
56  if( LAPACKE_sge_nancheck( matrix_layout, n, mm, vl, ldvl ) ) {
57  return -8;
58  }
59  }
60  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
61  if( LAPACKE_sge_nancheck( matrix_layout, n, mm, vr, ldvr ) ) {
62  return -10;
63  }
64  }
65 #endif
66  /* Allocate memory for working array(s) */
67  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'v' ) ) {
68  iwork = (lapack_int*)
69  LAPACKE_malloc( sizeof(lapack_int) * MAX(1,2*(n-1)) );
70  if( iwork == NULL ) {
72  goto exit_level_0;
73  }
74  }
75  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'v' ) ) {
76  work = (float*)LAPACKE_malloc( sizeof(float) * ldwork * MAX(1,n+6) );
77  if( work == NULL ) {
79  goto exit_level_1;
80  }
81  }
82  /* Call middle-level interface */
83  info = LAPACKE_strsna_work( matrix_layout, job, howmny, select, n, t, ldt,
84  vl, ldvl, vr, ldvr, s, sep, mm, m, work, ldwork,
85  iwork );
86  /* Release memory and exit */
87  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'v' ) ) {
88  LAPACKE_free( work );
89  }
90 exit_level_1:
91  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'v' ) ) {
92  LAPACKE_free( iwork );
93  }
94 exit_level_0:
95  if( info == LAPACK_WORK_MEMORY_ERROR ) {
96  LAPACKE_xerbla( "LAPACKE_strsna", info );
97  }
98  return info;
99 }
#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
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
lapack_int LAPACKE_strsna_work(int matrix_layout, char job, char howmny, const lapack_logical *select, lapack_int n, const float *t, lapack_int ldt, const float *vl, lapack_int ldvl, const float *vr, lapack_int ldvr, float *s, float *sep, lapack_int mm, lapack_int *m, float *work, lapack_int ldwork, lapack_int *iwork)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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
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