LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgbrfsx()

lapack_int LAPACKE_zgbrfsx ( int  matrix_layout,
char  trans,
char  equed,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
const lapack_complex_double ab,
lapack_int  ldab,
const lapack_complex_double afb,
lapack_int  ldafb,
const lapack_int ipiv,
const double *  r,
const double *  c,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  rcond,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params 
)

Definition at line 35 of file lapacke_zgbrfsx.c.

46 {
47  lapack_int info = 0;
48  double* rwork = NULL;
49  lapack_complex_double* work = NULL;
50  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
51  LAPACKE_xerbla( "LAPACKE_zgbrfsx", -1 );
52  return -1;
53  }
54 #ifndef LAPACK_DISABLE_NAN_CHECK
55  if( LAPACKE_get_nancheck() ) {
56  /* Optionally check input matrices for NaNs */
57  if( LAPACKE_zgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
58  return -8;
59  }
60  if( LAPACKE_zgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb, ldafb ) ) {
61  return -10;
62  }
63  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64  return -15;
65  }
66  if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
67  if( LAPACKE_d_nancheck( n, c, 1 ) ) {
68  return -14;
69  }
70  }
71  if( nparams>0 ) {
72  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
73  return -25;
74  }
75  }
76  if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
77  if( LAPACKE_d_nancheck( n, r, 1 ) ) {
78  return -13;
79  }
80  }
81  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
82  return -17;
83  }
84  }
85 #endif
86  /* Allocate memory for working array(s) */
87  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
88  if( rwork == NULL ) {
90  goto exit_level_0;
91  }
92  work = (lapack_complex_double*)
93  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
94  if( work == NULL ) {
96  goto exit_level_1;
97  }
98  /* Call middle-level interface */
99  info = LAPACKE_zgbrfsx_work( matrix_layout, trans, equed, n, kl, ku, nrhs,
100  ab, ldab, afb, ldafb, ipiv, r, c, b, ldb, x,
101  ldx, rcond, berr, n_err_bnds, err_bnds_norm,
102  err_bnds_comp, nparams, params, work, rwork );
103  /* Release memory and exit */
104  LAPACKE_free( work );
105 exit_level_1:
106  LAPACKE_free( rwork );
107 exit_level_0:
108  if( info == LAPACK_WORK_MEMORY_ERROR ) {
109  LAPACKE_xerbla( "LAPACKE_zgbrfsx", info );
110  }
111  return info;
112 }
#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
lapack_int LAPACKE_zgbrfsx_work(int matrix_layout, char trans, char equed, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, const lapack_complex_double *ab, lapack_int ldab, const lapack_complex_double *afb, lapack_int ldafb, const lapack_int *ipiv, const double *r, const double *c, const lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *rcond, double *berr, lapack_int n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int nparams, double *params, lapack_complex_double *work, double *rwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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)
lapack_logical LAPACKE_zgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_double *ab, lapack_int ldab)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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