LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dspev()

lapack_int LAPACKE_dspev ( int  matrix_layout,
char  jobz,
char  uplo,
lapack_int  n,
double *  ap,
double *  w,
double *  z,
lapack_int  ldz 
)

Definition at line 36 of file lapacke_dspev.c.

38 {
39  lapack_int info = 0;
40  double* work = NULL;
41  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
42  LAPACKE_xerbla( "LAPACKE_dspev", -1 );
43  return -1;
44  }
45 #ifndef LAPACK_DISABLE_NAN_CHECK
46  if( LAPACKE_get_nancheck() ) {
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_dsp_nancheck( n, ap ) ) {
49  return -5;
50  }
51  }
52 #endif
53  /* Allocate memory for working array(s) */
54  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
55  if( work == NULL ) {
57  goto exit_level_0;
58  }
59  /* Call middle-level interface */
60  info = LAPACKE_dspev_work( matrix_layout, jobz, uplo, n, ap, w, z, ldz,
61  work );
62  /* Release memory and exit */
63  LAPACKE_free( work );
64 exit_level_0:
65  if( info == LAPACK_WORK_MEMORY_ERROR ) {
66  LAPACKE_xerbla( "LAPACKE_dspev", info );
67  }
68  return info;
69 }
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
lapack_logical LAPACKE_dsp_nancheck(lapack_int n, const double *ap)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
int LAPACKE_get_nancheck()
#define lapack_int
Definition: lapacke.h:47
lapack_int LAPACKE_dspev_work(int matrix_layout, char jobz, char uplo, lapack_int n, double *ap, double *w, double *z, lapack_int ldz, double *work)
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACKE_xerbla(const char *name, lapack_int info)
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