LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgbrfsx()

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

Definition at line 36 of file lapacke_cgbrfsx.c.

47 {
48  lapack_int info = 0;
49  float* rwork = NULL;
50  lapack_complex_float* work = NULL;
51  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
52  LAPACKE_xerbla( "LAPACKE_cgbrfsx", -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_cgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
59  return -8;
60  }
61  if( LAPACKE_cgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb, ldafb ) ) {
62  return -10;
63  }
64  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
65  return -15;
66  }
67  if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
68  if( LAPACKE_s_nancheck( n, c, 1 ) ) {
69  return -14;
70  }
71  }
72  if( nparams>0 ) {
73  if( LAPACKE_s_nancheck( nparams, params, 1 ) ) {
74  return -25;
75  }
76  }
77  if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
78  if( LAPACKE_s_nancheck( n, r, 1 ) ) {
79  return -13;
80  }
81  }
82  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
83  return -17;
84  }
85  }
86 #endif
87  /* Allocate memory for working array(s) */
88  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
89  if( rwork == NULL ) {
91  goto exit_level_0;
92  }
93  work = (lapack_complex_float*)
94  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
95  if( work == NULL ) {
97  goto exit_level_1;
98  }
99  /* Call middle-level interface */
100  info = LAPACKE_cgbrfsx_work( matrix_layout, trans, equed, n, kl, ku, nrhs,
101  ab, ldab, afb, ldafb, ipiv, r, c, b, ldb, x,
102  ldx, rcond, berr, n_err_bnds, err_bnds_norm,
103  err_bnds_comp, 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_cgbrfsx", 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_float
Definition: lapacke.h:74
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
lapack_logical LAPACKE_cgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_float *ab, lapack_int ldab)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_int LAPACKE_cgbrfsx_work(int matrix_layout, char trans, char equed, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, const lapack_complex_float *ab, lapack_int ldab, const lapack_complex_float *afb, lapack_int ldafb, const lapack_int *ipiv, const float *r, const float *c, const lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *rcond, float *berr, lapack_int n_err_bnds, float *err_bnds_norm, float *err_bnds_comp, lapack_int nparams, float *params, lapack_complex_float *work, float *rwork)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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