LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_spbrfs()

lapack_int LAPACKE_spbrfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
const float *  ab,
lapack_int  ldab,
const float *  afb,
lapack_int  ldafb,
const float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 35 of file lapacke_spbrfs.c.

40{
41 lapack_int info = 0;
42 lapack_int* iwork = NULL;
43 float* work = NULL;
44 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45 LAPACKE_xerbla( "LAPACKE_spbrfs", -1 );
46 return -1;
47 }
48#ifndef LAPACK_DISABLE_NAN_CHECK
49 if( LAPACKE_get_nancheck() ) {
50 /* Optionally check input matrices for NaNs */
51 if( LAPACKE_spb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
52 return -6;
53 }
54 if( LAPACKE_spb_nancheck( matrix_layout, uplo, n, kd, afb, ldafb ) ) {
55 return -8;
56 }
57 if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
58 return -10;
59 }
60 if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
61 return -12;
62 }
63 }
64#endif
65 /* Allocate memory for working array(s) */
66 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
67 if( iwork == NULL ) {
69 goto exit_level_0;
70 }
71 work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
72 if( work == NULL ) {
74 goto exit_level_1;
75 }
76 /* Call middle-level interface */
77 info = LAPACKE_spbrfs_work( matrix_layout, uplo, n, kd, nrhs, ab, ldab, afb,
78 ldafb, b, ldb, x, ldx, ferr, berr, work,
79 iwork );
80 /* Release memory and exit */
81 LAPACKE_free( work );
82exit_level_1:
83 LAPACKE_free( iwork );
84exit_level_0:
85 if( info == LAPACK_WORK_MEMORY_ERROR ) {
86 LAPACKE_xerbla( "LAPACKE_spbrfs", info );
87 }
88 return info;
89}
#define lapack_int
Definition: lapack.h:87
#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)
lapack_int LAPACKE_spbrfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int kd, lapack_int nrhs, const float *ab, lapack_int ldab, const float *afb, lapack_int ldafb, const float *b, lapack_int ldb, float *x, lapack_int ldx, float *ferr, float *berr, float *work, lapack_int *iwork)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
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
lapack_logical LAPACKE_spb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const float *ab, lapack_int ldab)
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