LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dsyequb()

lapack_int LAPACKE_dsyequb ( int  matrix_layout,
char  uplo,
lapack_int  n,
const double *  a,
lapack_int  lda,
double *  s,
double *  scond,
double *  amax 
)

Definition at line 35 of file lapacke_dsyequb.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_dsyequb", -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_dsy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
49  return -4;
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_dsyequb_work( matrix_layout, uplo, n, a, lda, s, scond, amax,
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_dsyequb", info );
67  }
68  return info;
69 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
lapack_int LAPACKE_dsyequb_work(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda, double *s, double *scond, double *amax, double *work)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_dsy_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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