LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_spbsvx()

lapack_int LAPACKE_spbsvx ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
float *  ab,
lapack_int  ldab,
float *  afb,
lapack_int  ldafb,
char *  equed,
float *  s,
float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  rcond,
float *  ferr,
float *  berr 
)

Definition at line 35 of file lapacke_spbsvx.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_spbsvx", -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_spb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
53 return -7;
54 }
55 if( LAPACKE_lsame( fact, 'f' ) ) {
56 if( LAPACKE_spb_nancheck( matrix_layout, uplo, n, kd, afb, ldafb ) ) {
57 return -9;
58 }
59 }
60 if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
61 return -13;
62 }
63 if( LAPACKE_lsame( fact, 'f' ) && LAPACKE_lsame( *equed, 'y' ) ) {
64 if( LAPACKE_s_nancheck( n, s, 1 ) ) {
65 return -12;
66 }
67 }
68 }
69#endif
70 /* Allocate memory for working array(s) */
71 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
72 if( iwork == NULL ) {
74 goto exit_level_0;
75 }
76 work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
77 if( work == NULL ) {
79 goto exit_level_1;
80 }
81 /* Call middle-level interface */
82 info = LAPACKE_spbsvx_work( matrix_layout, fact, uplo, n, kd, nrhs, ab, ldab,
83 afb, ldafb, equed, s, b, ldb, x, ldx, rcond,
84 ferr, berr, work, iwork );
85 /* Release memory and exit */
86 LAPACKE_free( work );
87exit_level_1:
88 LAPACKE_free( iwork );
89exit_level_0:
90 if( info == LAPACK_WORK_MEMORY_ERROR ) {
91 LAPACKE_xerbla( "LAPACKE_spbsvx", info );
92 }
93 return info;
94}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
lapack_int LAPACKE_spbsvx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int kd, lapack_int nrhs, float *ab, lapack_int ldab, float *afb, lapack_int ldafb, char *equed, float *s, float *b, lapack_int ldb, float *x, lapack_int ldx, float *rcond, float *ferr, float *berr, float *work, lapack_int *iwork)
#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
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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
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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