LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zptrfs()

lapack_int LAPACKE_zptrfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const double *  d,
const lapack_complex_double e,
const double *  df,
const lapack_complex_double ef,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  ferr,
double *  berr 
)

Definition at line 35 of file lapacke_zptrfs.c.

42 {
43  lapack_int info = 0;
44  double* rwork = NULL;
45  lapack_complex_double* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_zptrfs", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
54  return -9;
55  }
56  if( LAPACKE_d_nancheck( n, d, 1 ) ) {
57  return -5;
58  }
59  if( LAPACKE_d_nancheck( n, df, 1 ) ) {
60  return -7;
61  }
62  if( LAPACKE_z_nancheck( n-1, e, 1 ) ) {
63  return -6;
64  }
65  if( LAPACKE_z_nancheck( n-1, ef, 1 ) ) {
66  return -8;
67  }
68  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
69  return -11;
70  }
71  }
72 #endif
73  /* Allocate memory for working array(s) */
74  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
75  if( rwork == NULL ) {
77  goto exit_level_0;
78  }
79  work = (lapack_complex_double*)
80  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,n) );
81  if( work == NULL ) {
83  goto exit_level_1;
84  }
85  /* Call middle-level interface */
86  info = LAPACKE_zptrfs_work( matrix_layout, uplo, n, nrhs, d, e, df, ef, b,
87  ldb, x, ldx, ferr, berr, work, rwork );
88  /* Release memory and exit */
89  LAPACKE_free( work );
90 exit_level_1:
91  LAPACKE_free( rwork );
92 exit_level_0:
93  if( info == LAPACK_WORK_MEMORY_ERROR ) {
94  LAPACKE_xerbla( "LAPACKE_zptrfs", info );
95  }
96  return info;
97 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#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
lapack_int LAPACKE_zptrfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const double *d, const lapack_complex_double *e, const double *df, const lapack_complex_double *ef, 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)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
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