LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ssyrfs()

lapack_int LAPACKE_ssyrfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const float *  a,
lapack_int  lda,
const float *  af,
lapack_int  ldaf,
const lapack_int ipiv,
const float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 36 of file lapacke_ssyrfs.c.

42 {
43  lapack_int info = 0;
44  lapack_int* iwork = NULL;
45  float* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_ssyrfs", -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_ssy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
54  return -5;
55  }
56  if( LAPACKE_ssy_nancheck( matrix_layout, uplo, n, af, ldaf ) ) {
57  return -7;
58  }
59  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
60  return -10;
61  }
62  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
63  return -12;
64  }
65  }
66 #endif
67  /* Allocate memory for working array(s) */
68  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
69  if( iwork == NULL ) {
71  goto exit_level_0;
72  }
73  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
74  if( work == NULL ) {
76  goto exit_level_1;
77  }
78  /* Call middle-level interface */
79  info = LAPACKE_ssyrfs_work( matrix_layout, uplo, n, nrhs, a, lda, af, ldaf,
80  ipiv, b, ldb, x, ldx, ferr, berr, work, iwork );
81  /* Release memory and exit */
82  LAPACKE_free( work );
83 exit_level_1:
84  LAPACKE_free( iwork );
85 exit_level_0:
86  if( info == LAPACK_WORK_MEMORY_ERROR ) {
87  LAPACKE_xerbla( "LAPACKE_ssyrfs", info );
88  }
89  return info;
90 }
lapack_logical LAPACKE_ssy_nancheck(int matrix_layout, char uplo, lapack_int n, const 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
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const 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_ssyrfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const float *a, lapack_int lda, const float *af, lapack_int ldaf, const lapack_int *ipiv, const float *b, lapack_int ldb, float *x, lapack_int ldx, float *ferr, float *berr, float *work, lapack_int *iwork)
#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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