LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgerfsx()

lapack_int LAPACKE_zgerfsx ( int  matrix_layout,
char  trans,
char  equed,
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 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 36 of file lapacke_zgerfsx.c.

47 {
48  lapack_int info = 0;
49  double* rwork = NULL;
50  lapack_complex_double* work = NULL;
51  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
52  LAPACKE_xerbla( "LAPACKE_zgerfsx", -1 );
53  return -1;
54  }
55 #ifndef LAPACK_DISABLE_NAN_CHECK
56  if( LAPACKE_get_nancheck() ) {
57  /* Optionally check input matrices for NaNs */
58  if( LAPACKE_zge_nancheck( matrix_layout, n, n, a, lda ) ) {
59  return -6;
60  }
61  if( LAPACKE_zge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
62  return -8;
63  }
64  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
65  return -13;
66  }
67  if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
68  if( LAPACKE_d_nancheck( n, c, 1 ) ) {
69  return -12;
70  }
71  }
72  if( nparams>0 ) {
73  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
74  return -23;
75  }
76  }
77  if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
78  if( LAPACKE_d_nancheck( n, r, 1 ) ) {
79  return -11;
80  }
81  }
82  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
83  return -15;
84  }
85  }
86 #endif
87  /* Allocate memory for working array(s) */
88  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
89  if( rwork == NULL ) {
91  goto exit_level_0;
92  }
93  work = (lapack_complex_double*)
94  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
95  if( work == NULL ) {
97  goto exit_level_1;
98  }
99  /* Call middle-level interface */
100  info = LAPACKE_zgerfsx_work( matrix_layout, trans, equed, n, nrhs, a, lda,
101  af, ldaf, ipiv, r, c, b, ldb, x, ldx, rcond,
102  berr, n_err_bnds, err_bnds_norm, err_bnds_comp,
103  nparams, params, work, rwork );
104  /* Release memory and exit */
105  LAPACKE_free( work );
106 exit_level_1:
107  LAPACKE_free( rwork );
108 exit_level_0:
109  if( info == LAPACK_WORK_MEMORY_ERROR ) {
110  LAPACKE_xerbla( "LAPACKE_zgerfsx", info );
111  }
112  return info;
113 }
#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
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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_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
lapack_int LAPACKE_zgerfsx_work(int matrix_layout, char trans, char equed, 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 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)
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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