LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctbrfs()

lapack_int LAPACKE_ctbrfs ( int  matrix_layout,
char  uplo,
char  trans,
char  diag,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
const lapack_complex_float ab,
lapack_int  ldab,
const lapack_complex_float b,
lapack_int  ldb,
const lapack_complex_float x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 35 of file lapacke_ctbrfs.c.

41 {
42  lapack_int info = 0;
43  float* rwork = NULL;
44  lapack_complex_float* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_ctbrfs", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  if( LAPACKE_get_nancheck() ) {
51  /* Optionally check input matrices for NaNs */
52  if( LAPACKE_ctb_nancheck( matrix_layout, uplo, diag, n, kd, ab, ldab ) ) {
53  return -8;
54  }
55  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
56  return -10;
57  }
58  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
59  return -12;
60  }
61  }
62 #endif
63  /* Allocate memory for working array(s) */
64  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
65  if( rwork == NULL ) {
67  goto exit_level_0;
68  }
69  work = (lapack_complex_float*)
70  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
71  if( work == NULL ) {
73  goto exit_level_1;
74  }
75  /* Call middle-level interface */
76  info = LAPACKE_ctbrfs_work( matrix_layout, uplo, trans, diag, n, kd, nrhs,
77  ab, ldab, b, ldb, x, ldx, ferr, berr, work,
78  rwork );
79  /* Release memory and exit */
80  LAPACKE_free( work );
81 exit_level_1:
82  LAPACKE_free( rwork );
83 exit_level_0:
84  if( info == LAPACK_WORK_MEMORY_ERROR ) {
85  LAPACKE_xerbla( "LAPACKE_ctbrfs", info );
86  }
87  return info;
88 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#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
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_ctbrfs_work(int matrix_layout, char uplo, char trans, char diag, lapack_int n, lapack_int kd, lapack_int nrhs, const lapack_complex_float *ab, lapack_int ldab, const lapack_complex_float *b, lapack_int ldb, const lapack_complex_float *x, lapack_int ldx, float *ferr, float *berr, lapack_complex_float *work, float *rwork)
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_ctb_nancheck(int matrix_layout, char uplo, char diag, lapack_int n, lapack_int kd, const lapack_complex_float *ab, lapack_int ldab)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
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