LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dsprfs()

lapack_int LAPACKE_dsprfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const double *  ap,
const double *  afp,
const lapack_int ipiv,
const double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  ferr,
double *  berr 
)

Definition at line 36 of file lapacke_dsprfs.c.

41 {
42  lapack_int info = 0;
43  lapack_int* iwork = NULL;
44  double* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_dsprfs", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_dsp_nancheck( n, afp ) ) {
52  return -6;
53  }
54  if( LAPACKE_dsp_nancheck( n, ap ) ) {
55  return -5;
56  }
57  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
58  return -8;
59  }
60  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
61  return -10;
62  }
63 #endif
64  /* Allocate memory for working array(s) */
65  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
66  if( iwork == NULL ) {
68  goto exit_level_0;
69  }
70  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
71  if( work == NULL ) {
73  goto exit_level_1;
74  }
75  /* Call middle-level interface */
76  info = LAPACKE_dsprfs_work( matrix_layout, uplo, n, nrhs, ap, afp, ipiv, b,
77  ldb, x, ldx, ferr, berr, work, iwork );
78  /* Release memory and exit */
79  LAPACKE_free( work );
80 exit_level_1:
81  LAPACKE_free( iwork );
82 exit_level_0:
83  if( info == LAPACK_WORK_MEMORY_ERROR ) {
84  LAPACKE_xerbla( "LAPACKE_dsprfs", info );
85  }
86  return info;
87 }
lapack_int LAPACKE_dsprfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const double *ap, const double *afp, const lapack_int *ipiv, const double *b, lapack_int ldb, double *x, lapack_int ldx, double *ferr, double *berr, double *work, lapack_int *iwork)
#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
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#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: