LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ 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 );
80exit_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:87
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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