LAPACK  3.7.1
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  /* Optionally check input matrices for NaNs */
47  if( LAPACKE_dsp_nancheck( n, ap ) ) {
48  return -5;
49  }
50 #endif
51  /* Allocate memory for working array(s) */
52  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
53  if( work == NULL ) {
55  goto exit_level_0;
56  }
57  /* Call middle-level interface */
58  info = LAPACKE_dspev_work( matrix_layout, jobz, uplo, n, ap, w, z, ldz,
59  work );
60  /* Release memory and exit */
61  LAPACKE_free( work );
62 exit_level_0:
63  if( info == LAPACK_WORK_MEMORY_ERROR ) {
64  LAPACKE_xerbla( "LAPACKE_dspev", info );
65  }
66  return info;
67 }
#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_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 MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_dsp_nancheck(lapack_int n, const double *ap)
#define lapack_int
Definition: lapacke.h:47
Here is the call graph for this function: