LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dpstrf()

lapack_int LAPACKE_dpstrf ( int  matrix_layout,
char  uplo,
lapack_int  n,
double *  a,
lapack_int  lda,
lapack_int piv,
lapack_int rank,
double  tol 
)

Definition at line 36 of file lapacke_dpstrf.c.

39 {
40  lapack_int info = 0;
41  double* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_dpstrf", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_dpo_nancheck( matrix_layout, uplo, n, a, lda ) ) {
50  return -4;
51  }
52  if( LAPACKE_d_nancheck( 1, &tol, 1 ) ) {
53  return -8;
54  }
55  }
56 #endif
57  /* Allocate memory for working array(s) */
58  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
59  if( work == NULL ) {
61  goto exit_level_0;
62  }
63  /* Call middle-level interface */
64  info = LAPACKE_dpstrf_work( matrix_layout, uplo, n, a, lda, piv, rank, tol,
65  work );
66  /* Release memory and exit */
67  LAPACKE_free( work );
68 exit_level_0:
69  if( info == LAPACK_WORK_MEMORY_ERROR ) {
70  LAPACKE_xerbla( "LAPACKE_dpstrf", info );
71  }
72  return info;
73 }
lapack_logical LAPACKE_dpo_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
#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 MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#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_int LAPACKE_dpstrf_work(int matrix_layout, char uplo, lapack_int n, double *a, lapack_int lda, lapack_int *piv, lapack_int *rank, double tol, double *work)
int LAPACKE_get_nancheck()
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