LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ssprfs()

lapack_int LAPACKE_ssprfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const float *  ap,
const float *  afp,
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_ssprfs.c.

41 {
42  lapack_int info = 0;
43  lapack_int* iwork = NULL;
44  float* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_ssprfs", -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_ssp_nancheck( n, afp ) ) {
53  return -6;
54  }
55  if( LAPACKE_ssp_nancheck( n, ap ) ) {
56  return -5;
57  }
58  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
59  return -8;
60  }
61  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
62  return -10;
63  }
64  }
65 #endif
66  /* Allocate memory for working array(s) */
67  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
68  if( iwork == NULL ) {
70  goto exit_level_0;
71  }
72  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
73  if( work == NULL ) {
75  goto exit_level_1;
76  }
77  /* Call middle-level interface */
78  info = LAPACKE_ssprfs_work( matrix_layout, uplo, n, nrhs, ap, afp, ipiv, b,
79  ldb, x, ldx, ferr, berr, work, iwork );
80  /* Release memory and exit */
81  LAPACKE_free( work );
82 exit_level_1:
83  LAPACKE_free( iwork );
84 exit_level_0:
85  if( info == LAPACK_WORK_MEMORY_ERROR ) {
86  LAPACKE_xerbla( "LAPACKE_ssprfs", info );
87  }
88  return info;
89 }
lapack_int LAPACKE_ssprfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const float *ap, const float *afp, 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_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
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_ssp_nancheck(lapack_int n, const float *ap)
int LAPACKE_get_nancheck()
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