LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zpbsvx()

lapack_int LAPACKE_zpbsvx ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
lapack_complex_double ab,
lapack_int  ldab,
lapack_complex_double afb,
lapack_int  ldafb,
char *  equed,
double *  s,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  rcond,
double *  ferr,
double *  berr 
)

Definition at line 36 of file lapacke_zpbsvx.c.

44 {
45  lapack_int info = 0;
46  double* rwork = NULL;
47  lapack_complex_double* work = NULL;
48  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49  LAPACKE_xerbla( "LAPACKE_zpbsvx", -1 );
50  return -1;
51  }
52 #ifndef LAPACK_DISABLE_NAN_CHECK
53  if( LAPACKE_get_nancheck() ) {
54  /* Optionally check input matrices for NaNs */
55  if( LAPACKE_zpb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
56  return -7;
57  }
58  if( LAPACKE_lsame( fact, 'f' ) ) {
59  if( LAPACKE_zpb_nancheck( matrix_layout, uplo, n, kd, afb, ldafb ) ) {
60  return -9;
61  }
62  }
63  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64  return -13;
65  }
66  if( LAPACKE_lsame( fact, 'f' ) && LAPACKE_lsame( *equed, 'y' ) ) {
67  if( LAPACKE_d_nancheck( n, s, 1 ) ) {
68  return -12;
69  }
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(1,2*n) );
81  if( work == NULL ) {
83  goto exit_level_1;
84  }
85  /* Call middle-level interface */
86  info = LAPACKE_zpbsvx_work( matrix_layout, fact, uplo, n, kd, nrhs, ab, ldab,
87  afb, ldafb, equed, s, b, ldb, x, ldx, rcond,
88  ferr, berr, work, rwork );
89  /* Release memory and exit */
90  LAPACKE_free( work );
91 exit_level_1:
92  LAPACKE_free( rwork );
93 exit_level_0:
94  if( info == LAPACK_WORK_MEMORY_ERROR ) {
95  LAPACKE_xerbla( "LAPACKE_zpbsvx", info );
96  }
97  return info;
98 }
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
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_zpb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_double *ab, lapack_int ldab)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_int LAPACKE_zpbsvx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int kd, lapack_int nrhs, lapack_complex_double *ab, lapack_int ldab, lapack_complex_double *afb, lapack_int ldafb, char *equed, double *s, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *rcond, double *ferr, double *berr, lapack_complex_double *work, double *rwork)
int LAPACKE_get_nancheck()
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define lapack_complex_double
Definition: lapacke.h:90
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACKE_xerbla(const char *name, lapack_int info)
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