LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dgbsvxx()

lapack_int LAPACKE_dgbsvxx ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
double *  ab,
lapack_int  ldab,
double *  afb,
lapack_int  ldafb,
lapack_int ipiv,
char *  equed,
double *  r,
double *  c,
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 36 of file lapacke_dgbsvxx.c.

46 {
47  lapack_int info = 0;
48  lapack_int* iwork = NULL;
49  double* work = NULL;
50  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
51  LAPACKE_xerbla( "LAPACKE_dgbsvxx", -1 );
52  return -1;
53  }
54 #ifndef LAPACK_DISABLE_NAN_CHECK
55  /* Optionally check input matrices for NaNs */
56  if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
57  return -8;
58  }
59  if( LAPACKE_lsame( fact, 'f' ) ) {
60  if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb,
61  ldafb ) ) {
62  return -10;
63  }
64  }
65  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
66  return -16;
67  }
68  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
69  LAPACKE_lsame( *equed, 'c' ) ) ) {
70  if( LAPACKE_d_nancheck( n, c, 1 ) ) {
71  return -15;
72  }
73  }
74  if( nparams>0 ) {
75  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
76  return -27;
77  }
78  }
79  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
80  LAPACKE_lsame( *equed, 'r' ) ) ) {
81  if( LAPACKE_d_nancheck( n, r, 1 ) ) {
82  return -14;
83  }
84  }
85 #endif
86  /* Allocate memory for working array(s) */
87  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
88  if( iwork == NULL ) {
90  goto exit_level_0;
91  }
92  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
93  if( work == NULL ) {
95  goto exit_level_1;
96  }
97  /* Call middle-level interface */
98  info = LAPACKE_dgbsvxx_work( matrix_layout, fact, trans, n, kl, ku, nrhs, ab,
99  ldab, afb, ldafb, ipiv, equed, r, c, b, ldb, x,
100  ldx, rcond, rpvgrw, berr, n_err_bnds,
101  err_bnds_norm, err_bnds_comp, nparams, params,
102  work, iwork );
103  /* Release memory and exit */
104  LAPACKE_free( work );
105 exit_level_1:
106  LAPACKE_free( iwork );
107 exit_level_0:
108  if( info == LAPACK_WORK_MEMORY_ERROR ) {
109  LAPACKE_xerbla( "LAPACKE_dgbsvxx", info );
110  }
111  return info;
112 }
#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
lapack_int LAPACKE_dgbsvxx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, double *ab, lapack_int ldab, double *afb, lapack_int ldafb, lapack_int *ipiv, char *equed, double *r, double *c, 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 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
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const double *ab, lapack_int ldab)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
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