LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dposvxx()

lapack_int LAPACKE_dposvxx ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
double *  a,
lapack_int  lda,
double *  af,
lapack_int  ldaf,
char *  equed,
double *  s,
double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  rcond,
double *  rpvgrw,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params 
)

Definition at line 35 of file lapacke_dposvxx.c.

43 {
44  lapack_int info = 0;
45  lapack_int* iwork = NULL;
46  double* work = NULL;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_dposvxx", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_dpo_nancheck( matrix_layout, uplo, n, a, lda ) ) {
55  return -6;
56  }
57  if( LAPACKE_lsame( fact, 'f' ) ) {
58  if( LAPACKE_dpo_nancheck( matrix_layout, uplo, n, af, ldaf ) ) {
59  return -8;
60  }
61  }
62  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
63  return -12;
64  }
65  if( nparams>0 ) {
66  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
67  return -23;
68  }
69  }
70  if( LAPACKE_lsame( fact, 'f' ) && LAPACKE_lsame( *equed, 'y' ) ) {
71  if( LAPACKE_d_nancheck( n, s, 1 ) ) {
72  return -11;
73  }
74  }
75  }
76 #endif
77  /* Allocate memory for working array(s) */
78  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
79  if( iwork == NULL ) {
81  goto exit_level_0;
82  }
83  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
84  if( work == NULL ) {
86  goto exit_level_1;
87  }
88  /* Call middle-level interface */
89  info = LAPACKE_dposvxx_work( matrix_layout, fact, uplo, n, nrhs, a, lda, af,
90  ldaf, equed, s, b, ldb, x, ldx, rcond, rpvgrw,
91  berr, n_err_bnds, err_bnds_norm, err_bnds_comp,
92  nparams, params, work, iwork );
93  /* Release memory and exit */
94  LAPACKE_free( work );
95 exit_level_1:
96  LAPACKE_free( iwork );
97 exit_level_0:
98  if( info == LAPACK_WORK_MEMORY_ERROR ) {
99  LAPACKE_xerbla( "LAPACKE_dposvxx", info );
100  }
101  return info;
102 }
#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_dposvxx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *af, lapack_int ldaf, char *equed, double *s, double *b, lapack_int ldb, double *x, lapack_int ldx, double *rcond, double *rpvgrw, double *berr, lapack_int n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int nparams, double *params, double *work, lapack_int *iwork)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dpo_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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