LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zherfs()

lapack_int LAPACKE_zherfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_double a,
lapack_int  lda,
const lapack_complex_double af,
lapack_int  ldaf,
const lapack_int ipiv,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  ferr,
double *  berr 
)

Definition at line 36 of file lapacke_zherfs.c.

43 {
44  lapack_int info = 0;
45  double* rwork = NULL;
46  lapack_complex_double* work = NULL;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_zherfs", -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_zhe_nancheck( matrix_layout, uplo, n, a, lda ) ) {
55  return -5;
56  }
57  if( LAPACKE_zhe_nancheck( matrix_layout, uplo, n, af, ldaf ) ) {
58  return -7;
59  }
60  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
61  return -10;
62  }
63  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
64  return -12;
65  }
66  }
67 #endif
68  /* Allocate memory for working array(s) */
69  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
70  if( rwork == NULL ) {
72  goto exit_level_0;
73  }
74  work = (lapack_complex_double*)
75  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
76  if( work == NULL ) {
78  goto exit_level_1;
79  }
80  /* Call middle-level interface */
81  info = LAPACKE_zherfs_work( matrix_layout, uplo, n, nrhs, a, lda, af, ldaf,
82  ipiv, b, ldb, x, ldx, ferr, berr, work, rwork );
83  /* Release memory and exit */
84  LAPACKE_free( work );
85 exit_level_1:
86  LAPACKE_free( rwork );
87 exit_level_0:
88  if( info == LAPACK_WORK_MEMORY_ERROR ) {
89  LAPACKE_xerbla( "LAPACKE_zherfs", info );
90  }
91  return info;
92 }
lapack_logical LAPACKE_zhe_nancheck(int matrix_layout, char uplo, lapack_int n, const lapack_complex_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 lapack_complex_double
Definition: lapacke.h:90
lapack_int LAPACKE_zherfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *af, lapack_int ldaf, const lapack_int *ipiv, const lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *ferr, double *berr, lapack_complex_double *work, double *rwork)
#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)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
int LAPACKE_get_nancheck()
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