LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sptrfs()

lapack_int LAPACKE_sptrfs ( int  matrix_layout,
lapack_int  n,
lapack_int  nrhs,
const float *  d,
const float *  e,
const float *  df,
const float *  ef,
const float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 35 of file lapacke_sptrfs.c.

39 {
40  lapack_int info = 0;
41  float* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_sptrfs", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
50  return -8;
51  }
52  if( LAPACKE_s_nancheck( n, d, 1 ) ) {
53  return -4;
54  }
55  if( LAPACKE_s_nancheck( n, df, 1 ) ) {
56  return -6;
57  }
58  if( LAPACKE_s_nancheck( n-1, e, 1 ) ) {
59  return -5;
60  }
61  if( LAPACKE_s_nancheck( n-1, ef, 1 ) ) {
62  return -7;
63  }
64  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
65  return -10;
66  }
67  }
68 #endif
69  /* Allocate memory for working array(s) */
70  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
71  if( work == NULL ) {
73  goto exit_level_0;
74  }
75  /* Call middle-level interface */
76  info = LAPACKE_sptrfs_work( matrix_layout, n, nrhs, d, e, df, ef, b, ldb, x,
77  ldx, ferr, berr, work );
78  /* Release memory and exit */
79  LAPACKE_free( work );
80 exit_level_0:
81  if( info == LAPACK_WORK_MEMORY_ERROR ) {
82  LAPACKE_xerbla( "LAPACKE_sptrfs", info );
83  }
84  return info;
85 }
#define lapack_int
Definition: lapack.h:83
lapack_int LAPACKE_sptrfs_work(int matrix_layout, lapack_int n, lapack_int nrhs, const float *d, const float *e, const float *df, const float *ef, const float *b, lapack_int ldb, float *x, lapack_int ldx, float *ferr, float *berr, float *work)
#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
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
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:46
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