LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctrrfs()

lapack_int LAPACKE_ctrrfs ( int  matrix_layout,
char  uplo,
char  trans,
char  diag,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float a,
lapack_int  lda,
const lapack_complex_float b,
lapack_int  ldb,
const lapack_complex_float x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 36 of file lapacke_ctrrfs.c.

42 {
43  lapack_int info = 0;
44  float* rwork = NULL;
45  lapack_complex_float* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_ctrrfs", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_ctr_nancheck( matrix_layout, uplo, diag, n, a, lda ) ) {
54  return -7;
55  }
56  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
57  return -9;
58  }
59  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
60  return -11;
61  }
62  }
63 #endif
64  /* Allocate memory for working array(s) */
65  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
66  if( rwork == NULL ) {
68  goto exit_level_0;
69  }
70  work = (lapack_complex_float*)
71  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
72  if( work == NULL ) {
74  goto exit_level_1;
75  }
76  /* Call middle-level interface */
77  info = LAPACKE_ctrrfs_work( matrix_layout, uplo, trans, diag, n, nrhs, a,
78  lda, b, ldb, x, ldx, ferr, berr, work, 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_ctrrfs", info );
86  }
87  return info;
88 }
lapack_logical LAPACKE_ctr_nancheck(int matrix_layout, char uplo, char diag, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#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_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_int LAPACKE_ctrrfs_work(int matrix_layout, char uplo, char trans, char diag, lapack_int n, lapack_int nrhs, const lapack_complex_float *a, lapack_int lda, 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)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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